Jacob, Jérémy, Disnar, Jean-Robert, Arnaud, Fabien, Gauthier, Emilie, Billaud, Yves, Chapron, Emmanuel, ...
In order to better understand the evolution of past climate-human-environment interactions in the North-western Alps during the Holocene, we have analysed the lipid content of two cores taken from...
Jacob, Jérémy, Disnar, Jean-Robert, Arnaud, Fabien, Gauthier, Emilie, Billaud, Yves, Chapron, Emmanuel, ...
In order to better understand the evolution of past climate-human-environment interactions in the North-western Alps during the Holocene, we have analysed the lipid content of two cores taken from...
Ben Hassen, Aïda, Trichet, Jean, Disnar, Jean-Robert, Belayouni, H.
L'étude de la matière organique (MO) associée aux sédiments phosphatés a été conduite sur des fractions séparées – grains phosphatés (pellets) et leurs matrices – de strates riches en...
Ben Hassen, Aïda, Trichet, Jean, Disnar, Jean-Robert, Belayouni, H.
L'étude de la matière organique (MO) associée aux sédiments phosphatés a été conduite sur des fractions séparées – grains phosphatés (pellets) et leurs matrices – de strates riches en...
Pique, A., Canals, A., Disnar, Jean-Robert, Grandia, F.
Organic matter is thought to play a role in the genesis of many Mississippi Valley-type (MVT) deposits, acting as a reducing agent during thermochemical sulfate reduction (TSR). Although TSR is an...
Pique, A., Canals, A., Disnar, Jean-Robert, Grandia, F.
Organic matter is thought to play a role in the genesis of many Mississippi Valley-type (MVT) deposits, acting as a reducing agent during thermochemical sulfate reduction (TSR). Although TSR is an...
Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Bienvenu, N., Le Romancer, M., ...
Hydrothermal activity was common on the early Earth and associated micro-organisms would most likely have included thermophilic to hyperthermophilic species. 3.5–3.3 billion-year-old,...
Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Bienvenu, N., Le Romancer, M., ...
Hydrothermal activity was common on the early Earth and associated micro-organisms would most likely have included thermophilic to hyperthermophilic species. 3.5–3.3 billion-year-old,...
Millet cultivation history in the French Alps as evidenced by a sedimentary molecule. (2008)
Jacob, Jérémy, Disnar, Jean-Robert, Arnaud, Fabien, Chapron, Emmanuel, Debret, Maxime, Lallier-Vergès, Elisabeth, ...
We report on the detection, in a sediment core drilled in Lake Le Bourget (French Alps), of a fossil molecule (miliacin) that was synthesized by broomcorn millet cultivated in the watershed, and then...
FTIR spectroscopy can predict organic matter quality in regenerating cutover peatlands. (2008)
Artz, Rebekka R.E., Chapman, Stephen J., Robertson, A.H. Jean, Potts, Jacqueline M., Laggoun-Défarge, Fatima, Gogo, Sébastien, ...
Vegetational changes during the restoration of cutover peatlands leave a legacy in terms of the organic matter quality of the newly formed peat. Current efforts to restore peatlands at a large scale...
FTIR spectroscopy can predict organic matter quality in regenerating cutover peatlands. (2008)
Artz, Rebekka R.E., Chapman, Stephen J., Robertson, A.H. Jean, Potts, Jacqueline M., Laggoun-Défarge, Fatima, Gogo, Sébastien, ...
Vegetational changes during the restoration of cutover peatlands leave a legacy in terms of the organic matter quality of the newly formed peat. Current efforts to restore peatlands at a large scale...
Millet cultivation history in the French Alps as evidenced by a sedimentary molecule. (2008)
Jacob, Jérémy, Disnar, Jean-Robert, Arnaud, Fabien, Chapron, Emmanuel, Debret, Maxime, Lallier-Vergès, Elisabeth, ...
We report on the detection, in a sediment core drilled in Lake Le Bourget (French Alps), of a fossil molecule (miliacin) that was synthesized by broomcorn millet cultivated in the watershed, and then...
Marchand, Cyril, Lallier-Vergès, Elisabeth, Disnar, Jean-Robert, Kéravis, Didier
A Rock-Eval pyrolysis study was carried out on sedimentary cores and leaf and woody tissue of vascular plant species from the mangroves of French Guiana. These forests develop on moving mudbanks and...
Marchand, Cyril, Lallier-Vergès, Elisabeth, Disnar, Jean-Robert, Kéravis, Didier
A Rock-Eval pyrolysis study was carried out on sedimentary cores and leaf and woody tissue of vascular plant species from the mangroves of French Guiana. These forests develop on moving mudbanks and...
Tiercelin, J.J., Gibert, Elisabeth, Umer, M., Bonnefille, R., Disnar, Jean-Robert, Lézine, A.M., ...
Sedimentological and geochemical studies conducted on a 15.82-m long core collected from Lake Garba Guracha (Ethiopia) associated with a precise AMS-14C time-scale document a unique record of the...
Tiercelin, J.J., Gibert, Elisabeth, Umer, M., Bonnefille, R., Disnar, Jean-Robert, Lézine, A.M., ...
Sedimentological and geochemical studies conducted on a 15.82-m long core collected from Lake Garba Guracha (Ethiopia) associated with a precise AMS-14C time-scale document a unique record of the...
Jacob, Jérémy, Disnar, Jean-Robert, Bardoux, Gérard
We here report on the determination of the carbon isotopic composition of miliacin (olean-18-en-3βol methyl ether), extracted from the sediments of Lake le Bourget (French Alps). It is compared...
Jacob, Jérémy, Disnar, Jean-Robert, Bardoux, Gérard
We here report on the determination of the carbon isotopic composition of miliacin (olean-18-en-3βol methyl ether), extracted from the sediments of Lake le Bourget (French Alps). It is compared...
Laggoun-Défarge, Fatima, Mitchell, Edward, Gilbert, Daniel, Disnar, Jean-Robert, Comont, Laure, Warner, Barry, ...
1. Cutover peatlands are valuable as habitat for rare species and as carbon sinks. However, assessing peat accumulation is complicated. Approaches such as using biological and physico-chemical...
Laggoun-Défarge, Fatima, Mitchell, Edward, Gilbert, Daniel, Disnar, Jean-Robert, Comont, Laure, Warner, Barry, ...
1. Cutover peatlands are valuable as habitat for rare species and as carbon sinks. However, assessing peat accumulation is complicated. Approaches such as using biological and physico-chemical...
Implications of spatial and temporal evolutions of thermal parameters in basin modelling (2008)
Amir, L., Martinez, Luis, Disnar, Jean-Robert, Michels, R., Vigneresse, J.L., Robin, C., ...
This paper presents the Paris Basin numerical modelling at a high sequential resolution scale (1–5 my). Simulations were carried out from the computation of thermal gradients and conductivities...
Implications of spatial and temporal evolutions of thermal parameters in basin modelling (2008)
Amir, L., Martinez, Luis, Disnar, Jean-Robert, Michels, R., Vigneresse, J.L., Robin, C., ...
This paper presents the Paris Basin numerical modelling at a high sequential resolution scale (15 my). Simulations were carried out from the computation of thermal gradients and conductivities...
Disnar, Jean-Robert, Jacob, Jérémy, Morched-Issa, Mayssa, Lottier, Nathalie, Arnaud, Fabien
Although it is primarily constituted in general from a limited variety of local plants, peat is however sensitive to physicochemical changes in the medium, in particular those induced by hydrological...
Disnar, Jean-Robert, Jacob, Jérémy, Morched-Issa, Mayssa, Lottier, Nathalie, Arnaud, Fabien
Although it is primarily constituted in general from a limited variety of local plants, peat is however sensitive to physicochemical changes in the medium, in particular those induced by hydrological...
Jacob, Jérémy, Disnar, Jean-Robert, Arnaud, Fabien
La théorie émise par William Ruddiman en 2003 selon laquelle la «Révolution Néolithique» serait à lorigine dun dérèglement du climat par une émission massive de CO2 et de CH4, induite...
Jacob, Jérémy, Disnar, Jean-Robert, Arnaud, Fabien
La théorie émise par William Ruddiman en 2003 selon laquelle la «Révolution Néolithique» serait à l’origine d’un dérèglement du climat par une émission massive de CO2 et de CH4, induite...
Lallier-Vergès, Elisabeth, Marchand, Cyril, Disnar, Jean-Robert, Lottier, Nathalie
The mangroves of Grande Terre Island (Guadeloupe, French West Indies) are known to store large amounts of organic carbon, and organic-rich sediments have been described to several meters depth. The...
Lallier-Vergès, Elisabeth, Marchand, Cyril, Disnar, Jean-Robert, Lottier, Nathalie
The mangroves of Grande Terre Island (Guadeloupe, French West Indies) are known to store large amounts of organic carbon, and organic-rich sediments have been described to several meters depth. The...
How to assess cutover Peatland regeneration with combined organic matter indicators ? (2008)
Gogo, Sébastien, Laggoun-Défarge, Fatima, Comont, Laure, Défarge, Christian, Disnar, Jean-Robert, Gautret, Pascale, ...
When restored, cutover peatlands can favour biodiversity and carbon (C) sequestration. Within the EU program RECIPE, we aimed to identify combinations of site physico-chemical conditions, vegetation...
How to assess cutover Peatland regeneration with combined organic matter indicators ? (2008)
Gogo, Sébastien, Laggoun-Défarge, Fatima, Comont, Laure, Défarge, Christian, Disnar, Jean-Robert, Gautret, Pascale, ...
When restored, cutover peatlands can favour biodiversity and carbon (C) sequestration. Within the EU program RECIPE, we aimed to identify combinations of site physico-chemical conditions, vegetation...
Hébrard, J.P., Verbruggen, C., Disnar, Jean-Robert, Spassov, S., ...
A 6200 year old peat sequence, cored in a volcanic crater on the sub-Antarctic Ile de la Possession (Iles Crozet), has been investigated, based on a multi-proxy approach. The methods applied are...
Hébrard, J.P., Verbruggen, C., Disnar, Jean-Robert, Spassov, S., ...
A 6200 year old peat sequence, cored in a volcanic crater on the sub-Antarctic Ile de la Possession (Iles Crozet), has been investigated, based on a multi-proxy approach. The methods applied are...
Van Der Putten, Nathalie, Hébrard, Jean-Piere, Verbruggen, Cyriel, Van De Vijver, Bart, Disnar, Jean-Robert, Spassov, Simo, ...
A 6200 year old peat sequence, cored in a volcanic crater on the sub-Antarctic Ile de la Possession (Iles Crozet), has been investigated, based on a multi-proxy approach. The methods applied are...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Turcq, Bruno
Lipid fractions extracted from sediment layers deposited in a small Brazilian lake during the last 20,000 yrs were investigated by gas chromatography-mass pectrometry. Considerable differences in the...
Paleohydrological changes during the last deglaciation in Northern Brazil (2007)
Jacob, Jérémy, Huang, Yongsong, Disnar, Jean-Robert, Sifeddine, Abdelfettah, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, ...
We here report a reconstruction of hydrological balance variations in Northern Brazil for the last 20 ka deduced from the D values of aquatic and land plant molecules extracted from the...
Millet, Laurent, Vannière, Boris, Magny, Michel, De Beaulieu, Jacques Louis, Disnar, Jean-Robert, Laggoun-Défarge, Fatima, ...
This study focuses on the response of lacustrine littoral chironomid communities to late glacial changes in limnological, environmental and climate conditions in the Mediterranean context. Late...
Mesnage, Valérie, Ogier, Sylvie, Bally, Gabriel, Disnar, Jean-Robert, Lottier, Nathalie, Dedieu, Karine, ...
The Thau Lagoon, a French Mediterranean shallow lagoon, is a site where extensive shellfish farming occurs. The aim of the present work is to evaluate the role of this activity on nutrient exchange...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Turcq, Bruno
Lipid fractions extracted from sediment layers deposited in a small Brazilian lake during the last 20,000 yrs were investigated by gas chromatography-mass pectrometry. Considerable differences in the...
Gouin, Jérôme, Augé, T., Bailly, Laurent, D'Hugues, P., Disnar, Jean-Robert, Kéravis, Didier
The ore mineral and organic matter content of the Lubin black shale (LBS) are compared with copper concentrate (LC) obtained by flotation. Study of a mineralized profile shows a good correlation...
Laggoun-Défarge, Fatima, Gattinguer, Andreas, Comont, Laure, Disnar, Jean-Robert, Lottier, Nathalie, Gautret, Pascale, ...
The high preservation of organic material in peatlands that results from low pH, anoxia and rapid burial make the peat archives particularly useful for reconstructing natural or anthropogenic...
Jacob, Jérémy, Disnar, Jean-Robert, Arnaud, Fabien, Chapron, Emmanuel, Debret, Maxime, Lallier-Vergès, Elisabeth, ...
Lacustrine sedimentary archives provide clue information on past Human-climate-environment interactions in order to predict the future responses of societies and ecosystems to global climate change....
La matière organique des sols (MOS) : un héritage difficile mais fructueux (2007)
Disnar, Jean-Robert, Bruand, Ary
Interface entre géosphère et biosphère, les sols doivent, de manière immédiatement perceptible, la MO quils renferment aux végétaux, voire aux animaux quils supportent et/ou abritent. La...
Ben Hassen, Aïda, Trichet, Jean, Belayouni, H., Disnar, Jean-Robert
Humic substances (HS) were extracted from faecal pellets - ovoid phosphatic grains 50-200 µm in size - collected from commercially mined phosphatic sediments, in the Gafsa Basin. The phosphatic...
Ben Hassen, Aïda, Trichet, Jean, Belayouni, H., Disnar, Jean-Robert
Humic substances (HS) were extracted from faecal pellets - ovoid phosphatic grains 50-200 µm in size - collected from commercially mined phosphatic sediments, in the Gafsa Basin. The phosphatic...
La matière organique des sols (MOS) : un héritage difficile mais fructueux (2007)
Disnar, Jean-Robert, Bruand, Ary
Interface entre géosphère et biosphère, les sols doivent, de manière immédiatement perceptible, la MO quils renferment aux végétaux, voire aux animaux quils supportent et/ou abritent. La...
Jacob, Jérémy, Disnar, Jean-Robert, Arnaud, Fabien, Chapron, Emmanuel, Debret, Maxime, Lallier-Vergès, Elisabeth, ...
Lacustrine sedimentary archives provide clue information on past Human-climate-environment interactions in order to predict the future responses of societies and ecosystems to global climate change....
Millet, Laurent, Vannière, Boris, Magny, Michel, De Beaulieu, Jacques Louis, Disnar, Jean-Robert, Laggoun-Défarge, Fatima, ...
This study focuses on the response of lacustrine littoral chironomid communities to late glacial changes in limnological, environmental and climate conditions in the Mediterranean context. Late...
Laggoun-Défarge, Fatima, Gattinguer, Andreas, Comont, Laure, Disnar, Jean-Robert, Lottier, Nathalie, Gautret, Pascale, ...
The high preservation of organic material in peatlands that results from low pH, anoxia and rapid burial make the peat archives particularly useful for reconstructing natural or anthropogenic...
Paleohydrological changes during the last deglaciation in Northern Brazil (2007)
Jacob, Jérémy, Huang, Yongsong, Disnar, Jean-Robert, Sifeddine, Abdelfettah, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, ...
We here report a reconstruction of hydrological balance variations in Northern Brazil for the last 20 ka deduced from the D values of aquatic and land plant molecules extracted from the...
Gouin, Jérôme, Augé, T., Bailly, Laurent, D'Hugues, P., Disnar, Jean-Robert, Kéravis, Didier
The ore mineral and organic matter content of the Lubin black shale (LBS) are compared with copper concentrate (LC) obtained by flotation. Study of a mineralized profile shows a good correlation...
Mesnage, Valérie, Ogier, Sylvie, Bally, Gabriel, Disnar, Jean-Robert, Lottier, Nathalie, Dedieu, Karine, ...
The Thau Lagoon, a French Mediterranean shallow lagoon, is a site where extensive shellfish farming occurs. The aim of the present work is to evaluate the role of this activity on nutrient exchange...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Turcq, Bruno
Lipid fractions extracted from sediment layers deposited in a small Brazilian lake during the last 20,000 yrs were investigated by gas chromatography-mass pectrometry. Considerable differences in the...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Turcq, Bruno
Lipid fractions extracted from sediment layers deposited in a small Brazilian lake during the last 20,000 yrs, were investigated by gas chromatography-mass spectrometry. Considerable differences in...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Turcq, Bruno
Lipid fractions extracted from sediment layers deposited in a small Brazilian lake during the last 20,000 yrs, were investigated by gas chromatography-mass spectrometry. Considerable differences in...
Magny, Michel, Aalbersberg, Gerard, Bégeot, Carole, Benoit-Ruffaldia, Pascale, Bossuet, Gilles, Disnar, Jean-Robert, ...
This paper presents a multi-proxy reconstruction of the climatic and environmental changes during the Last GlacialInterglacial transition as recorded by a sediment sequence from Lake Lautrey (Jura,...
Sebag, D., Disnar, Jean-Robert, Guillet, Bernard, Di Giovanni, Christian, P. Verrecchia, Eric, Durand, A.
Rock-Eval pyrolysis was designed for petroleum exploration to determine the type and quality of organic matter in rock samples. Nevertheless, this technique can be used for bulk characterization of...
Bruand, Ary, Carlos Balbino, Luíz, Volland-Tuduri, Nathalie, Cousin, Isabelle, Reatto-Braga, Adriana, ...
Ferralsols have a ferralic horizon at some depth between 30 and 200 cm that results from long and intense weathering. Their clay fraction is usually mainly low-activity clay consisting of kaolinite...
Auajjar, J., Disnar, Jean-Robert
L'étude de la matière organique associée aux minéralisations Pb-Zn de la plate-forme liasique du district du Tazekka par pyrolyse Rock-Eval, révèle qu'elle est allochtone et très mature (stade...
Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Défarge, Christian
Early life forms on Earth included chemolithotrophic organisms and such organisms would probably have existed on Mars, if life was present on that planet. Since the earliest life forms known to date...
Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Défarge, Christian
Early life forms on Earth included chemolithotrophic organisms and such organisms would probably have existed on Mars, if life was present on that planet. Since the earliest life forms known to date...
Auajjar, J., Disnar, Jean-Robert
L'étude de la matière organique associée aux minéralisations Pb-Zn de la plate-forme liasique du district du Tazekka par pyrolyse Rock-Eval, révèle qu'elle est allochtone et très mature (stade...
Bruand, Ary, Balbino, Luíz Carlos, Volland-Tuduri, Nathalie, Cousin, Isabelle, Reatto-Braga, Adriana, ...
Ferralsols have a ferralic horizon at some depth between 30 and 200 cm that results from long and intense weathering. Their clay fraction is usually mainly low-activity clay consisting of kaolinite...
Magny, Michel, Aalbersberg, Gerard, Bégeot, Carole, Benoit-Ruffaldia, Pascale, Bossuet, Gilles, Disnar, Jean-Robert, ...
This paper presents a multi-proxy reconstruction of the climatic and environmental changes during the Last GlacialInterglacial transition as recorded by a sediment sequence from Lake Lautrey (Jura,...
Sebag, David, Disnar, Jean-Robert, Guillet, Bernard, Di Giovanni, Christian, P. Verrecchia, Eric, Durand, Alain
Rock-Eval pyrolysis was designed for petroleum exploration to determine the type and quality of organic matter in rock samples. Nevertheless, this technique can be used for bulk characterization of...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Turcq, Bruno
Lipid fractions extracted from sediment layers deposited in a small Brazilian lake during the last 20,000 yrs, were investigated by gas chromatography-mass spectrometry. Considerable differences in...
Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Défarge, Christian
Early life forms on Earth included chemolithotrophic organisms and such organisms would probably have existed on Mars, if life was present on that planet. Since the earliest life forms known to date...
Auajjar, J., Disnar, Jean-Robert
L'étude de la matière organique associée aux minéralisations Pb-Zn de la plate-forme liasique du district du Tazekka par pyrolyse Rock-Eval, révèle qu'elle est allochtone et très mature (stade...
Bruand, Ary, Balbino, Luíz Carlos, Volland-Tuduri, Nathalie, Cousin, Isabelle, Reatto-Braga, Adriana, ...
Ferralsols have a ferralic horizon at some depth between 30 and 200 cm that results from long and intense weathering. Their clay fraction is usually mainly low-activity clay consisting of kaolinite...
Magny, Michel, Aalbersberg, Gerard, Bégeot, Carole, Benoit-Ruffaldia, Pascale, Bossuet, Gilles, Disnar, Jean-Robert, ...
This paper presents a multi-proxy reconstruction of the climatic and environmental changes during the Last GlacialInterglacial transition as recorded by a sediment sequence from Lake Lautrey (Jura,...
Sebag, David, Disnar, Jean-Robert, Guillet, Bernard, Di Giovanni, Christian, P. Verrecchia, Eric, Durand, Alain
Rock-Eval pyrolysis was designed for petroleum exploration to determine the type and quality of organic matter in rock samples. Nevertheless, this technique can be used for bulk characterization of...
Bruand, Ary, Balbino, Luíz Carlos, Volland-Tuduri, Nathalie, Cousin, Isabelle, Reatto-Braga, Adriana, ...
Ferralsols have a ferralic horizon at some depth between 30 and 200 cm that results from long and intense weathering. Their clay fraction is usually mainly low-activity clay consisting of kaolinite...
Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Défarge, Christian
Early life forms on Earth included chemolithotrophic organisms and such organisms would probably have existed on Mars, if life was present on that planet. Since the earliest life forms known to date...
Sebag, David, Disnar, Jean-Robert, Guillet, Bernard, Di Giovanni, Christian, P. Verrecchia, Eric, Durand, Alain
Rock-Eval pyrolysis was designed for petroleum exploration to determine the type and quality of organic matter in rock samples. Nevertheless, this technique can be used for bulk characterization of...
Auajjar, J., Disnar, Jean-Robert
L'étude de la matière organique associée aux minéralisations Pb-Zn de la plate-forme liasique du district du Tazekka par pyrolyse Rock-Eval, révèle qu'elle est allochtone et très mature (stade...
Magny, Michel, Aalbersberg, Gerard, Bégeot, Carole, Benoit-Ruffaldia, Pascale, Bossuet, Gilles, Disnar, Jean-Robert, ...
This paper presents a multi-proxy reconstruction of the climatic and environmental changes during the Last GlacialInterglacial transition as recorded by a sediment sequence from Lake Lautrey (Jura,...
Pentacyclic triterpene methyl ethers in recent lacustrine sediments (Lagoa do Caçó, Brazil). (2005)
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Turcq, Bruno
The lipid extracts of sediments collected from the Quaternary filling of a tropical lacustrine series (Lagoa do Caçó, Brazil) were investigated by gas chromatography-mass spectrometry (GC-MS)....
Amir, L., Martinez, L., Disnar, Jean-Robert, Vigneresse, J.L., Michels, R., Guillocheau, F., ...
Many studies investigated the thermal modeling of the Paris basin for petroleum interests during the 1970s. Most of the softwares developed by oil companies or research centers were based on the...
Disnar, Jean-Robert, Stefanova, Maya, Bourdon, Sonia, Laggoun-Défarge, Fatima
Seven samples from a 1 m long peat core, taken from the centre of the Tritrivakely maar lake (Madagascar) and covering the last 2300 yr, were analysed for their fatty acid (FA) content. Solvent...
Karroum, Michel, Guillet, Bernard, Disnar, Jean-Robert, Laggoun-Défarge, Fatima, Lottier, Nathalie, Villemin, Geneviève, ...
L'étude a porté sur les humus mull et moder de deux hêtraies de la Forêt de Fougères respectivement âgées de 27 et 87 ans. Cinq profils de sol de chacune de ces deux parcelles ont été...
Disnar, Jean-Robert, Marchand, Cyril, Lallier-Vergès, Elisabeth, Lottier, Nathalie
A comparative study of lignin and neutral carbohydrate compositions, combined with C, N and δ13C analyses, was carried out on sedimentary cores, and on various vascular plant species collected...
Khamli, N., Disnar, Jean-Robert, Laggoun-Défarge, Fatima, Boussafir, Mohamed
The CenomanianTuronian Oceanic Anoxic Event was recognised in North Western Africa in various depositional settings from abyssal areas to continental shelves. To derive information on environmental...
Copard, Yoann, Disnar, Jean-Robert
The aim of this study was first to review or even identify reliable diagnostic criteria to distinguish recycled and autochthonous vitrinite particles and, second, to examine and try to explain the...
Ménétrier, Cédric, Élie, Marcel, Martinez, Luis, Le Solleuz, Antoine, Disnar, Jean-Robert, Robin, Cécile, ...
The thermal history of the central part of the Paris basin is reconstructed using C31 hopane S/R isomerisation ratios and organic matter transformation ratios measured on Lower Toarcian and...
Jacob, Jérémy, Huang, Yongsong, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Disnar, Jean-Robert
There is renewing evidence that the Tropics might strongly influence climate dynamics on millennial time-scales. Part of this "tropical forcing" is related to changes in the water cycle that impacts...
Comont, Laure, Laggoun-Défarge, Fatima, Disnar, Jean-Robert
Peatlands have been exploited since the Middle Ages for diverse uses, including fuel, animal bedding and growth substrate in horticulture and agriculture. In many countries, these traditional...
Lallier-Vergès, Elisabeth, Marchand, Cyril, Albéric, Patrick, Disnar, Jean-Robert
During the four last years, a National research Programme for Coastal Environment (PNEC) was partly devoted to the littoral of French Guiana. Several field trips allowed to sample twinned sedimentary...
Disnar, Jean-Robert, Stefanova, Maya, Bourdon, Sonia, Laggoun-Défarge, Fatima
When studying fatty acids (FAs) organic geochemists classically paid attention either to the "free" fraction or to "bound" compounds commonly released by saponication. However, it is now well...
Lallier-Vergès, Elisabeth, Marchand, Cyril, Albéric, Patrick, Disnar, Jean-Robert
During the four last years, a National research Programme for Coastal Environment (PNEC) was partly devoted to the littoral of French Guiana. Several field trips allowed to sample twinned sedimentary...
Lallier-Vergès, Elisabeth, Marchand, Cyril, Albéric, Patrick, Disnar, Jean-Robert
During the four last years, a National research Programme for Coastal Environment (PNEC) was partly devoted to the littoral of French Guiana. Several field trips allowed to sample twinned sedimentary...
Jacob, Jérémy, Huang, Yongsong, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Disnar, Jean-Robert
There is renewing evidence that the Tropics might strongly influence climate dynamics on millennial time-scales. Part of this "tropical forcing" is related to changes in the water cycle that impacts...
Comont, Laure, Laggoun-Défarge, Fatima, Disnar, Jean-Robert
Peatlands have been exploited since the Middle Ages for diverse uses, including fuel, animal bedding and growth substrate in horticulture and agriculture. In many countries, these traditional...
Lallier-Vergès, Elisabeth, Marchand, Cyril, Albéric, Patrick, Disnar, Jean-Robert
During the four last years, a National research Programme for Coastal Environment (PNEC) was partly devoted to the littoral of French Guiana. Several field trips allowed to sample twinned sedimentary...
Disnar, Jean-Robert, Stefanova, Maya, Bourdon, Sonia, Laggoun-Défarge, Fatima
When studying fatty acids (FAs) organic geochemists classically paid attention either to the "free" fraction or to "bound" compounds commonly released by saponication. However, it is now well...
Khamli, N., Disnar, Jean-Robert, Laggoun-Défarge, Fatima, Boussafir, Mohammed
The CenomanianTuronian Oceanic Anoxic Event was recognised in North Western Africa in various depositional settings from abyssal areas to continental shelves. To derive information on environmental...
Copard, Yoann, Disnar, Jean-Robert
The aim of this study was first to review or even identify reliable diagnostic criteria to distinguish recycled and autochthonous vitrinite particles and, second, to examine and try to explain the...
Marchand, Cyril, Disnar, Jean-Robert, Lallier-Vergès, Elisabeth, Lottier, Nathalie
A comparative study of lignin and neutral carbohydrate compositions, combined with C, N and δ13C analyses, was carried out on sedimentary cores, and on various vascular plant species collected...
Disnar, Jean-Robert, Stefanova, Maya, Bourdon, Sonia, Laggoun-Défarge, Fatima
Seven samples from a 1 m long peat core, taken from the centre of the Tritrivakely maar lake (Madagascar) and covering the last 2300 yr, were analysed for their fatty acid (FA) content. Solvent...
Ménétrier, Cédric, Élie, Marcel, Martinez, Luis, Le Solleuz, Antoine, Disnar, Jean-Robert, Robin, Cécile, ...
The thermal history of the central part of the Paris basin is reconstructed using C31 hopane S/R isomerisation ratios and organic matter transformation ratios measured on Lower Toarcian and...
Amir, L., Martinez, L., Disnar, Jean-Robert, Vigneresse, J.L., Michels, R., Guillocheau, F., ...
Many studies investigated the thermal modeling of the Paris basin for petroleum interests during the 1970s. Most of the softwares developed by oil companies or research centers were based on the...
Pentacyclic triterpene methyl ethers in recent lacustrine sediments (Lagoa do Caçó, Brazil). (2005)
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Turcq, Bruno
The lipid extracts of sediments collected from the Quaternary filling of a tropical lacustrine series (Lagoa do Caçó, Brazil) were investigated by gas chromatography-mass spectrometry (GC-MS)....
Lallier-Vergès, Elisabeth, Marchand, Cyril, Albéric, Patrick, Disnar, Jean-Robert
During the four last years, a National research Programme for Coastal Environment (PNEC) was partly devoted to the littoral of French Guiana. Several field trips allowed to sample twinned sedimentary...
Jacob, Jérémy, Huang, Yongsong, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Disnar, Jean-Robert
There is renewing evidence that the Tropics might strongly influence climate dynamics on millennial time-scales. Part of this "tropical forcing" is related to changes in the water cycle that impacts...
Comont, Laure, Laggoun-Défarge, Fatima, Disnar, Jean-Robert
Peatlands have been exploited since the Middle Ages for diverse uses, including fuel, animal bedding and growth substrate in horticulture and agriculture. In many countries, these traditional...
Lallier-Vergès, Elisabeth, Marchand, Cyril, Albéric, Patrick, Disnar, Jean-Robert
During the four last years, a National research Programme for Coastal Environment (PNEC) was partly devoted to the littoral of French Guiana. Several field trips allowed to sample twinned sedimentary...
Disnar, Jean-Robert, Stefanova, Maya, Bourdon, Sonia, Laggoun-Défarge, Fatima
When studying fatty acids (FAs) organic geochemists classically paid attention either to the "free" fraction or to "bound" compounds commonly released by saponication. However, it is now well...
Khamli, N., Disnar, Jean-Robert, Laggoun-Défarge, Fatima, Boussafir, Mohammed
The CenomanianTuronian Oceanic Anoxic Event was recognised in North Western Africa in various depositional settings from abyssal areas to continental shelves. To derive information on environmental...
Copard, Yoann, Disnar, Jean-Robert
The aim of this study was first to review or even identify reliable diagnostic criteria to distinguish recycled and autochthonous vitrinite particles and, second, to examine and try to explain the...
Marchand, Cyril, Disnar, Jean-Robert, Lallier-Vergès, Elisabeth, Lottier, Nathalie
A comparative study of lignin and neutral carbohydrate compositions, combined with C, N and δ13C analyses, was carried out on sedimentary cores, and on various vascular plant species collected...
Disnar, Jean-Robert, Stefanova, Maya, Bourdon, Sonia, Laggoun-Défarge, Fatima
Seven samples from a 1 m long peat core, taken from the centre of the Tritrivakely maar lake (Madagascar) and covering the last 2300 yr, were analysed for their fatty acid (FA) content. Solvent...
Ménétrier, Cédric, Élie, Marcel, Martinez, Luis, Le Solleuz, Antoine, Disnar, Jean-Robert, Robin, Cécile, ...
The thermal history of the central part of the Paris basin is reconstructed using C31 hopane S/R isomerisation ratios and organic matter transformation ratios measured on Lower Toarcian and...
Amir, L., Martinez, Luis, Disnar, Jean-Robert, Vigneresse, J.L., Michels, R., Guillocheau, F., ...
Many studies investigated the thermal modeling of the Paris basin for petroleum interests during the 1970s. Most of the softwares developed by oil companies or research centers were based on the...
Pentacyclic triterpene methyl ethers in recent lacustrine sediments (Lagoa do Caçó, Brazil). (2005)
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Turcq, Bruno
The lipid extracts of sediments collected from the Quaternary filling of a tropical lacustrine series (Lagoa do Caçó, Brazil) were investigated by gas chromatography-mass spectrometry (GC-MS)....
Ménétrier, Cédric, Elie, Marcel, Martinez, Luis, Le Solleuz, Antoine, Disnar, Jean-Robert, Robin, Cécile, ...
La thermicité du centre du bassin de Paris est étudiée par une modélisation thermique 1D, basée sur (i) les rapports d'isomérisation S/R des C31 hopane mesurés sur le Callovo-Oxfordien et le...
Ménétrier, Cédric, Elie, Marcel, Martinez, Luis, Le Solleuz, Antoine, Disnar, Jean-Robert, Robin, Cécile, ...
La thermicité du centre du bassin de Paris est étudiée par une modélisation thermique 1D, basée sur (i) les rapports d'isomérisation S/R des C31 hopane mesurés sur le Callovo-Oxfordien et le...
Amir, L., Martinez, Luis, Disnar, Jean-Robert, Vigneresse, J.L., Michels, R., Guillocheau, F., ...
Many studies investigated the thermal modeling of the Paris basin for petroleum interests during the 1970s. Most of the softwares developed by oil companies or research centers were based on the...
Jacob, Jérémy, Huang, Yongsong, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Disnar, Jean-Robert
There is renewing evidence that the Tropics might strongly influence climate dynamics on millennial time-scales. Part of this "tropical forcing" is related to changes in the water cycle that impacts...
Lallier-Vergès, Elisabeth, Marchand, Cyril, Albéric, Patrick, Disnar, Jean-Robert
During the four last years, a National research Programme for Coastal Environment (PNEC) was partly devoted to the littoral of French Guiana. Several field trips allowed to sample twinned sedimentary...
Comont, Laure, Laggoun-Défarge, Fatima, Disnar, Jean-Robert
Peatlands have been exploited since the Middle Ages for diverse uses, including fuel, animal bedding and growth substrate in horticulture and agriculture. In many countries, these traditional...
Lallier-Vergès, Elisabeth, Marchand, Cyril, Albéric, Patrick, Disnar, Jean-Robert
During the four last years, a National research Programme for Coastal Environment (PNEC) was partly devoted to the littoral of French Guiana. Several field trips allowed to sample twinned sedimentary...
Disnar, Jean-Robert, Stefanova, Maya, Bourdon, Sonia, Laggoun-Défarge, Fatima
When studying fatty acids (FAs) organic geochemists classically paid attention either to the "free" fraction or to "bound" compounds commonly released by saponication. However, it is now well...
Copard, Yoann, Disnar, Jean-Robert
The aim of this study was first to review or even identify reliable diagnostic criteria to distinguish recycled and autochthonous vitrinite particles and, second, to examine and try to explain the...
Khamli, N., Disnar, Jean-Robert, Laggoun-Défarge, Fatima, Boussafir, Mohammed
The CenomanianTuronian Oceanic Anoxic Event was recognised in North Western Africa in various depositional settings from abyssal areas to continental shelves. To derive information on environmental...
Ménétrier, Cédric, Élie, Marcel, Martinez, Luis, Le Solleuz, Antoine, Disnar, Jean-Robert, Robin, Cécile, ...
The thermal history of the central part of the Paris basin is reconstructed using C31 hopane S/R isomerisation ratios and organic matter transformation ratios measured on Lower Toarcian and...
Marchand, Cyril, Disnar, Jean-Robert, Lallier-Vergès, Elisabeth, Lottier, Nathalie
A comparative study of lignin and neutral carbohydrate compositions, combined with C, N and δ13C analyses, was carried out on sedimentary cores, and on various vascular plant species collected...
Pentacyclic triterpene methyl ethers in recent lacustrine sediments (Lagoa do Caçó, Brazil). (2005)
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, Turcq, Bruno
The lipid extracts of sediments collected from the Quaternary filling of a tropical lacustrine series (Lagoa do Caçó, Brazil) were investigated by gas chromatography-mass spectrometry (GC-MS)....
Disnar, Jean-Robert, Stefanova, Maya, Bourdon, Sonia, Laggoun-Défarge, Fatima
Seven samples from a 1 m long peat core, taken from the centre of the Tritrivakely maar lake (Madagascar) and covering the last 2300 yr, were analysed for their fatty acid (FA) content. Solvent...
Onocerane testifies to dry climatic events during the Quaternary in the Tropics. (2004)
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Ledru, Marie-Pierre, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, ...
An unusual molecular fossil (onocerane I) has been detected for the first time in Quaternary lacustrine sediments (Lagoa do Caçó, NE Brazil). This molecule was initially thought to attest to the...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Sifeddine, Abdelfettah, Turcq, Bruno, Luiza Spadano Albuquerque, Ana
Sediment samples collected along a 6-m core, drilled in the deepest part of the Lagoa do Caçó (NE Brazil), have been investigated in order to determine source(s) and degradation conditions of the...
Jacob, Jérémy, Disnar, Jean-Robert, Huang, Yongsong, Boussafir, Mohammed, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana, ...
Although we have now a better picture of past climates, there are still numerous questions that remain unsolved. These uncertainties primarily arise from the possible human impact on climate...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed
Documenter les variations du climat et leurs impacts sur les écosystèmes reste un enjeu majeur sur le continent, et ce à différentes échelles de temps et d'espace. En particulier, l'estimation...
Karroum, Michel, Guillet, Bernard, Lottier, Nathalie, Disnar, Jean-Robert
Importance and fate of biopolymers (lignins and polysaccharides) in soils of Fagus sylvatica stands of various ages in Fougères forest (Britany - France). Four beech stands of various ages were...
Erroneous coal maturity assessment caused by low temperature oxidation. (2004)
Copard, Yoann, Disnar, Jean-Robert, Becq-Giraudon, Jean-François, Laggoun-Défarge, Fatima
Previous work carried out on different outcrop coals from the French Massif Central revealed abnormally high Tmax values, which initially were attributed to high temperature oxidising fluids. This...
Pichevin, Laetitia, Bertrand, Philippe, Boussafir, Mohamed, Disnar, Jean-Robert
The Lüderitz upwelling cell is presently the most productive area of the Benguela current system and abundant organic matter (OM) accumulates on the adjacent slope sediments even at great water...
Preserved lignin structures in Miocene-aged lignite lithotypes, Bulgaria. (2004)
Stefanova, Maya, Maman, O., Guillet, Bernard, Disnar, Jean-Robert
Contents of preserved lignin structures in Miocene-aged lignite lithotypes were determined. Phenol aldehydes, ketones and acids released from lignin by CuO oxidative hydrolysis were separated by...
Baudin, François, Blanke, R., Pichevin, Laetitia, Tranier, J., Bertrand, Philippe, Disnar, Jean-Robert, ...
Classical views for the deposition of organic-rich sediments in deep-sea environments invoke two principal types of oceanographic and sedimentologic settings. The first is confined basins in which...
Baudin, François, Blanke, R., Pichevin, Laetitia, Tranier, J., Bertrand, Philippe, Disnar, Jean-Robert, ...
Classical views for the deposition of organic-rich sediments in deep-sea environments invoke two principal types of oceanographic and sedimentologic settings. The first is confined basins in which...
Pichevin, Laetitia, Bertrand, Philippe, Boussafir, Mohammed, Disnar, Jean-Robert
The Lüderitz upwelling cell is presently the most productive area of the Benguela current system and abundant organic matter (OM) accumulates on the adjacent slope sediments even at great water...
Erroneous coal maturity assessment caused by low temperature oxidation. (2004)
Copard, Yoann, Disnar, Jean-Robert, Becq-Giraudon, Jean-François, Laggoun-Défarge, Fatima
Previous work carried out on different outcrop coals from the French Massif Central revealed abnormally high Tmax values, which initially were attributed to high temperature oxidising fluids. This...
Preserved lignin structures in Miocene-aged lignite lithotypes, Bulgaria. (2004)
Stefanova, Maya, Maman, O., Guillet, Bernard, Disnar, Jean-Robert
Contents of preserved lignin structures in Miocene-aged lignite lithotypes were determined. Phenol aldehydes, ketones and acids released from lignin by CuO oxidative hydrolysis were separated by...
Karroum, Michel, Guillet, Bernard, Lottier, Nathalie, Disnar, Jean-Robert
Importance and fate of biopolymers (lignins and polysaccharides) in soils of Fagus sylvatica stands of various ages in Fougères forest (Britany - France). Four beech stands of various ages were...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Sifeddine, Abdelfettah, Turcq, Bruno, Luiza Spadano Albuquerque, Ana
Sediment samples collected along a 6-m core, drilled in the deepest part of the Lagoa do Caçó (NE Brazil), have been investigated in order to determine source(s) and degradation conditions of the...
Onocerane testifies to dry climatic events during the Quaternary in the Tropics. (2004)
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Ledru, Marie-Pierre, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, ...
An unusual molecular fossil (onocerane I) has been detected for the first time in Quaternary lacustrine sediments (Lagoa do Caçó, NE Brazil). This molecule was initially thought to attest to the...
Baudin, François, Blanke, R., Pichevin, Laetitia, Tranier, J., Bertrand, Philippe, Disnar, Jean-Robert, ...
Classical views for the deposition of organic-rich sediments in deep-sea environments invoke two principal types of oceanographic and sedimentologic settings. The first is confined basins in which...
Pichevin, Laetitia, Bertrand, Philippe, Boussafir, Mohammed, Disnar, Jean-Robert
The Lüderitz upwelling cell is presently the most productive area of the Benguela current system and abundant organic matter (OM) accumulates on the adjacent slope sediments even at great water...
Erroneous coal maturity assessment caused by low temperature oxidation. (2004)
Copard, Yoann, Disnar, Jean-Robert, Becq-Giraudon, Jean-François, Laggoun-Défarge, Fatima
Previous work carried out on different outcrop coals from the French Massif Central revealed abnormally high Tmax values, which initially were attributed to high temperature oxidising fluids. This...
Preserved lignin structures in Miocene-aged lignite lithotypes, Bulgaria. (2004)
Stefanova, Maya, Maman, O., Guillet, Bernard, Disnar, Jean-Robert
Contents of preserved lignin structures in Miocene-aged lignite lithotypes were determined. Phenol aldehydes, ketones and acids released from lignin by CuO oxidative hydrolysis were separated by...
Karroum, Michel, Guillet, Bernard, Lottier, Nathalie, Disnar, Jean-Robert
Importance and fate of biopolymers (lignins and polysaccharides) in soils of Fagus sylvatica stands of various ages in Fougères forest (Britany - France). Four beech stands of various ages were...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Sifeddine, Abdelfettah, Turcq, Bruno, Luiza Spadano Albuquerque, Ana
Sediment samples collected along a 6-m core, drilled in the deepest part of the Lagoa do Caçó (NE Brazil), have been investigated in order to determine source(s) and degradation conditions of the...
Onocerane testifies to dry climatic events during the Quaternary in the Tropics. (2004)
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Ledru, Marie-Pierre, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, ...
An unusual molecular fossil (onocerane I) has been detected for the first time in Quaternary lacustrine sediments (Lagoa do Caçó, NE Brazil). This molecule was initially thought to attest to the...
Baudin, François, Blanke, Raphaël, Pichevin, Laetitia, Tranier, J., Bertrand, Philippe, Disnar, Jean-Robert, ...
Classical views for the deposition of organic-rich sediments in deep-sea environments invoke two principal types of oceanographic and sedimentologic settings. The first is confined basins in which...
Baudin, François, Blanke, Raphaël, Pichevin, Laetitia, Tranier, J., Bertrand, Philippe, Disnar, Jean-Robert, ...
Classical views for the deposition of organic-rich sediments in deep-sea environments invoke two principal types of oceanographic and sedimentologic settings. The first is confined basins in which...
Baudin, François, Blanke, Raphaël, Pichevin, Laetitia, Tranier, J., Bertrand, Philippe, Disnar, Jean-Robert, ...
Classical views for the deposition of organic-rich sediments in deep-sea environments invoke two principal types of oceanographic and sedimentologic settings. The first is confined basins in which...
Preserved lignin structures in Miocene-aged lignite lithotypes, Bulgaria. (2004)
Stefanova, Maya, Maman, O., Guillet, Bernard, Disnar, Jean-Robert
Contents of preserved lignin structures in Miocene-aged lignite lithotypes were determined. Phenol aldehydes, ketones and acids released from lignin by CuO oxidative hydrolysis were separated by...
Pichevin, Laetitia, Bertrand, Philippe, Boussafir, Mohammed, Disnar, Jean-Robert
The Lüderitz upwelling cell is presently the most productive area of the Benguela current system and abundant organic matter (OM) accumulates on the adjacent slope sediments even at great water...
Karroum, Michel, Guillet, Bernard, Lottier, Nathalie, Disnar, Jean-Robert
Importance and fate of biopolymers (lignins and polysaccharides) in soils of Fagus sylvatica stands of various ages in Fougères forest (Britany - France). Four beech stands of various ages were...
Onocerane testifies to dry climatic events during the Quaternary in the Tropics. (2004)
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Ledru, Marie-Pierre, Luiza Spadano Albuquerque, Ana, Sifeddine, Abdelfettah, ...
An unusual molecular fossil (onocerane I) has been detected for the first time in Quaternary lacustrine sediments (Lagoa do Caçó, NE Brazil). This molecule was initially thought to attest to the...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Sifeddine, Abdelfettah, Turcq, Bruno, Luiza Spadano Albuquerque, Ana
Sediment samples collected along a 6-m core, drilled in the deepest part of the Lagoa do Caçó (NE Brazil), have been investigated in order to determine source(s) and degradation conditions of the...
Erroneous coal maturity assessment caused by low temperature oxidation. (2004)
Copard, Yoann, Disnar, Jean-Robert, Becq-Giraudon, Jean-François, Laggoun-Défarge, Fatima
Previous work carried out on different outcrop coals from the French Massif Central revealed abnormally high Tmax values, which initially were attributed to high temperature oxidising fluids. This...
Coking properties of perhydrous low-rank vitrains. Influence of pyrolysis conditions. (2003)
Laggoun-Défarge, Fatima, Rouzaud, Jean-Noël, José Iglesias, María, Suarez-Ruiz, Isabel, Buillit, Nicolas, Disnar, Jean-Robert
Compositional transformations occurring during natural coalification generally lead to increased coking potential of coals characterised in the resulting cokes by large sizes of molecular orientation...
Soil organic matter (SOM) characterization by Rock-Eval pyrolysis : (2003)
Disnar, Jean-Robert, Guillet, Bernard, Kéravis, Didier, Di Giovanni, Christian, Sebag, D.
Application of Rock-Eval pyrolysis to soil organic matter (SOM) quantitation and characterization has been explored by the study of about 100 soil samples taken from a variety of soil profiles from...
Nzoussi-Mbassani, Pierre, Disnar, Jean-Robert, Laggoun-Défarge, Fatima
One hundred and fifteen samples of CenomanianTuronian sediments from the Senegal margin basin, believed to be the main source rocks in the area, have been characterised to determine their organic...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Ledru, Marie-Pierre, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana, ...
Onocerane-related compounds are very uncommon molecules that are seldom encountered in the plant kingdom and even more rarely in sediments. In living plants, onoceranoids have been isolated from taxa...
Boussafir, Mohammed, Foudi, Merouane, Jacob, Jérémy, Disnar, Jean-Robert, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana
Le Lac Caço est situé au Nord-Est du Brésil, dans l'Etat de Maranhaõ, sous l'Equateur (2°58S 43°25 W), en bordure de la forêt amazonienne et à 80 km de la côte Atlantique. Son altitude ne...
Azaroual, Mohamed, Romand, Bruno, Freyssinet, Philippe, Disnar, Jean-Robert
In Byrne's comment (this issue) on the solubility of platinum in aqueous solutions (Azaroual et al., 2001), he claims that our recommended values for the formation constant of PtOH+ (OHβ1) are...
Azaroual, Mohamed, Romand, Bruno, Freyssinet, Philippe, Disnar, Jean-Robert
In Byrne's comment (this issue) on the solubility of platinum in aqueous solutions (Azaroual et al., 2001), he claims that our recommended values for the formation constant of PtOH+ (OHβ1) are...
Boussafir, Mohammed, Foudi, Merouane, Jacob, Jérémy, Disnar, Jean-Robert, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana
Le Lac Caço est situé au Nord-Est du Brésil, dans l'Etat de Maranhaõ, sous l'Equateur (2°58S 43°25 W), en bordure de la forêt amazonienne et à 80 km de la côte Atlantique. Son altitude ne...
Coking properties of perhydrous low-rank vitrains. Influence of pyrolysis conditions. (2003)
Laggoun-Défarge, Fatima, Rouzaud, Jean-Noël, José Iglesias, María, Suarez-Ruiz, Isabel, Buillit, Nicolas, Disnar, Jean-Robert
Compositional transformations occurring during natural coalification generally lead to increased coking potential of coals characterised in the resulting cokes by large sizes of molecular orientation...
Disnar, Jean-Robert, Laggoun-Défarge, Fatima
One hundred and fifteen samples of CenomanianTuronian sediments from the Senegal margin basin, believed to be the main source rocks in the area, have been characterised to determine their organic...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Ledru, Marie-Pierre, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana, ...
Onocerane-related compounds are very uncommon molecules that are seldom encountered in the plant kingdom and even more rarely in sediments. In living plants, onoceranoids have been isolated from taxa...
Azaroual, Mohamed, Romand, Bruno, Freyssinet, Philippe, Disnar, Jean-Robert
In Byrne's comment (this issue) on the solubility of platinum in aqueous solutions (Azaroual et al., 2001), he claims that our recommended values for the formation constant of PtOH+ (OHβ1) are...
Boussafir, Mohammed, Foudi, Merouane, Jacob, Jérémy, Disnar, Jean-Robert, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana
Le Lac Caço est situé au Nord-Est du Brésil, dans l'Etat de Maranhaõ, sous l'Equateur (2°58S 43°25 W), en bordure de la forêt amazonienne et à 80 km de la côte Atlantique. Son altitude ne...
Coking properties of perhydrous low-rank vitrains. Influence of pyrolysis conditions. (2003)
Laggoun-Défarge, Fatima, Rouzaud, Jean-Noël, José Iglesias, María, Suarez-Ruiz, Isabel, Buillit, Nicolas, Disnar, Jean-Robert
Compositional transformations occurring during natural coalification generally lead to increased coking potential of coals characterised in the resulting cokes by large sizes of molecular orientation...
Disnar, Jean-Robert, Laggoun-Défarge, Fatima
One hundred and fifteen samples of CenomanianTuronian sediments from the Senegal margin basin, believed to be the main source rocks in the area, have been characterised to determine their organic...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Ledru, Marie-Pierre, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana, ...
Onocerane-related compounds are very uncommon molecules that are seldom encountered in the plant kingdom and even more rarely in sediments. In living plants, onoceranoids have been isolated from taxa...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana, Turcq, Bruno
La reconstitution des climats anciens nécessite soit un accès direct aux paramètres qui les définissent (température, humidité ) soit, de façon indirecte, aux environnements et écosystèmes...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana, Turcq, Bruno
La reconstitution des climats anciens nécessite soit un accès direct aux paramètres qui les définissent (température, humidité ) soit, de façon indirecte, aux environnements et écosystèmes...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana, Turcq, Bruno
La reconstitution des climats anciens nécessite soit un accès direct aux paramètres qui les définissent (température, humidité ) soit, de façon indirecte, aux environnements et écosystèmes...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana, Turcq, Bruno
La reconstitution des climats anciens nécessite soit un accès direct aux paramètres qui les définissent (température, humidité ) soit, de façon indirecte, aux environnements et écosystèmes...
Azaroual, Mohamed, Romand, Bruno, Freyssinet, Philippe, Disnar, Jean-Robert
In Byrne's comment (this issue) on the solubility of platinum in aqueous solutions (Azaroual et al., 2001), he claims that our recommended values for the formation constant of PtOH+ (OHβ1) are...
Boussafir, Mohammed, Foudi, Merouane, Jacob, Jérémy, Disnar, Jean-Robert, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana
Le Lac Caço est situé au Nord-Est du Brésil, dans l'Etat de Maranhaõ, sous l'Equateur (2°58S 43°25 W), en bordure de la forêt amazonienne et à 80 km de la côte Atlantique. Son altitude ne...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Ledru, Marie-Pierre, Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana, ...
Onocerane-related compounds are very uncommon molecules that are seldom encountered in the plant kingdom and even more rarely in sediments. In living plants, onoceranoids have been isolated from taxa...
Disnar, Jean-Robert, Laggoun-Défarge, Fatima
One hundred and fifteen samples of CenomanianTuronian sediments from the Senegal margin basin, believed to be the main source rocks in the area, have been characterised to determine their organic...
Coking properties of perhydrous low-rank vitrains. Influence of pyrolysis conditions. (2003)
Laggoun-Défarge, Fatima, Rouzaud, Jean-Noël, José Iglesias, María, Suarez-Ruiz, Isabel, Buillit, Nicolas, Disnar, Jean-Robert
Compositional transformations occurring during natural coalification generally lead to increased coking potential of coals characterised in the resulting cokes by large sizes of molecular orientation...
Di Giovanni, Christian, Disnar, Jean-Robert, Macaire, Jean-Jacques
The aim of this paper is to propose an initial estimation of the annual organic matter yield induced by chemical weathering of carbonates and shales, considering their global surface at outcrop and...
Di Giovanni, Christian, Disnar, Jean-Robert, Macaire, Jean-Jacques
The aim of this paper is to propose an initial estimation of the annual organic matter yield induced by chemical weathering of carbonates and shales, considering their global surface at outcrop and...
Sifeddine, Abdelfettah, Luiza Spadano Albuquerque, Ana, Turcq, Bruno, Jacob, Jérémy, Boussafir, Mohamed, Disnar, Jean-Robert, ...
Les résultats sédimentologiques incluant la sismique réflexion, la minéralogie et la géochimie organique de deux carottes prélevées respectivement au centre et sur la marge du lac Caço...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohamed, Sifeddine, Abdelfettah, Spadano Albuquerque, Ana-Luiza, Turcq, Bruno
Le Lac Caço (Etat de Marañhao, Brésil), situé dans la zone équatoriale, fait l'objet d'études pluridisciplinaires (de sédimentologie, palynologie, microbiologie, géophysique et géochimie)...
Azaroual, Mohamed, Romand, Bruno, Freyssinet, Philippe, Disnar, Jean-Robert
Platinum has been found to be mobile under supergene conditions, including placers and weathering profiles. To elucidate the nature of Pt mobility in supergene environments, the dissolution of...
Azaroual, Mohamed, Romand, Bruno, Freyssinet, Philippe, Disnar, Jean-Robert
Platinum has been found to be mobile under supergene conditions, including placers and weathering profiles. To elucidate the nature of Pt mobility in supergene environments, the dissolution of...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Sifeddine, Abdelfettah, Spadano Albuquerque, Ana-Luiza, Turcq, Bruno
Le Lac Caço (Etat de Marañhao, Brésil), situé dans la zone équatoriale, fait l'objet d'études pluridisciplinaires (de sédimentologie, palynologie, microbiologie, géophysique et géochimie)...
Azaroual, Mohamed, Romand, Bruno, Freyssinet, Philippe, Disnar, Jean-Robert
Platinum has been found to be mobile under supergene conditions, including placers and weathering profiles. To elucidate the nature of Pt mobility in supergene environments, the dissolution of...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Sifeddine, Abdelfettah, Spadano Albuquerque, Ana-Luiza, Turcq, Bruno
Le Lac Caço (Etat de Marañhao, Brésil), situé dans la zone équatoriale, fait l'objet d'études pluridisciplinaires (de sédimentologie, palynologie, microbiologie, géophysique et géochimie)...
Ogier, Sylvie, Disnar, Jean-Robert, Albéric, Patrick, Bourdier, Gilles
Carbohydrate compositions were determined on sinking particles and core samples from eutrophic lake Aydat. Carbohydrate fluxes indicate that phytoplanktonic production is the main organic matter (OM)...
Ogier, Sylvie, Disnar, Jean-Robert, Albéric, Patrick, Bourdier, Gilles
Carbohydrate compositions were determined on sinking particles and core samples from eutrophic lake Aydat. Carbohydrate fluxes indicate that phytoplanktonic production is the main organic matter (OM)...
Azaroual, Mohamed, Romand, Bruno, Freyssinet, Philippe, Disnar, Jean-Robert
Platinum has been found to be mobile under supergene conditions, including placers and weathering profiles. To elucidate the nature of Pt mobility in supergene environments, the dissolution of...
Jacob, Jérémy, Disnar, Jean-Robert, Boussafir, Mohammed, Sifeddine, Abdelfettah, Spadano Albuquerque, Ana-Luiza, Turcq, Bruno
Le Lac Caço (Etat de Marañhao, Brésil), situé dans la zone équatoriale, fait l'objet d'études pluridisciplinaires (de sédimentologie, palynologie, microbiologie, géophysique et géochimie)...
Di Giovanni, Christian, Disnar, Jean-Robert, Bakyono, Jean-Paul, Kéravis, Didier, Millet, François, Olivier, Jean-Emmanuel
Ce travail s'appuie sur l'étude de la matière organique présente dans les sols, substratum géologique et particules fluviatiles, d'un bassin versant équipé par le Cemagref. L'analyse des...
Di Giovanni, Christian, Disnar, Jean-Robert, Bakyono, Jean-Paul, Kéravis, Didier, Millet, François, Olivier, Jean-Emmanuel
Ce travail s'appuie sur l'étude de la matière organique présente dans les sols, substratum géologique et particules fluviatiles, d'un bassin versant équipé par le Cemagref. L'analyse des...
Sifeddine, Abdelfettah, Laggoun-Défarge, Fatima, Lallier-Vergès, Elisabeth, Disnar, Jean-Robert, Williamson, David, Gasse, Françoise, ...
L'étude pétrographique (palynofaciès) et géochimique (pyrolyse Rock Eval) de la matière organique sédimentaire d'une carotte prélevée dans un lac de cratère de Madagascar révèle une...
Sifeddine, Abdelfettah, Laggoun-Défarge, Fatima, Lallier-Vergès, Elisabeth, Disnar, Jean-Robert, Williamson, David, Gasse, Françoise, ...
L'étude pétrographique (palynofaciès) et géochimique (pyrolyse Rock Eval) de la matière organique sédimentaire d'une carotte prélevée dans un lac de cratère de Madagascar révèle une...
Sifeddine, Abdelfettah, Laggoun-Défarge, Fatima, Lallier-Vergès, Elisabeth, Disnar, Jean-Robert, Williamson, David, Gasse, Françoise, ...
L'étude pétrographique (palynofaciès) et géochimique (pyrolyse Rock Eval) de la matière organique sédimentaire d'une carotte prélevée dans un lac de cratère de Madagascar révèle une...
Sifeddine, Abdelfettah, Laggoun-Défarge, Fatima, Lallier-Vergès, Elisabeth, Disnar, Jean-Robert, Williamson, David, Gasse, Françoise, ...
L'étude pétrographique (palynofaciès) et géochimique (pyrolyse Rock Eval) de la matière organique sédimentaire d'une carotte prélevée dans un lac de cratère de Madagascar révèle une...
Gasse, Françoise, Cortijo, Elsa, Disnar, Jean-Robert, Ferry, Luc, Gilbert, Elisabeth, Kissel, Catherine, ...
The upper 13 m of a 40 m-long sedimentary profile core taken in a crater lake on the Malagasy Plateau reveals 36,000 yrs of hydroclimatic evolution. A shallow lake occupies the core site from...
Gasse, Françoise, Cortijo, Elsa, Disnar, Jean-Robert, Ferry, Luc, Gilbert, Elisabeth, Kissel, Catherine, ...
The upper 13 m of a 40 m-long sedimentary profile core taken in a crater lake on the Malagasy Plateau reveals 36,000 yrs of hydroclimatic evolution. A shallow lake occupies the core site from...
Lallier-Vergès, Elisabeth, Sifeddine, Abdelfettah, De Beaulieu, Jacques Louis, Reille, Maurice, Tribovillard, Nicolas, Bertrand, Philippe, ...
Deux carottes de sédiments superficiels (2 à 3 m) prélevées dans le lac du Bouchet (Haute Loire, France) ont été étudiées du point de vue de leur composition minérale et organique. Les...
Lallier-Vergès, Elisabeth, Sifeddine, Abdelfettah, De Beaulieu, Jacques Louis, Reille, Maurice, Tribovillard, Nicolas, Bertrand, Philippe, ...
Deux carottes de sédiments superficiels (2 à 3 m) prélevées dans le lac du Bouchet (Haute Loire, France) ont été étudiées du point de vue de leur composition minérale et organique. Les...