Zobrazeno 1 - 10 of 19 pro vyhledávání: '"Alain Desprairies"'
1
Geochemical study of organic-matter rich cycles from the Kimmeridge Clay Formation of Yorkshire (UK): productivity versus anoxia
Autor: Lalanirina Ramanampisoa, Alain Desprairies, Nicolas-Pierre Tribovillard, Abdelkader Ramdani, Elisabeth Lallier-Vergès, Nicole Moureau, Philippe Bertrand
Publikováno v: Palaeogeography, Palaeoclimatology, Palaeoecology. 108:165-181
In this contribution, we study two meter-scale cycles from the Kimmeridge Clay Formation (cored near Marton, Yorkshire) which shows cyclic organic matter (OM) distribution. Our aim is to try to understand the factors responsile for (OM) accumulation.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::31ee44ce4800ebc11e1c0cfbf2011891
https://doi.org/10.1016/0031-0182(94)90028-0
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2
Organic matter composition and sulfate reduction intensity in Oman Margin sediments
Autor: Alain Desprairies, Elisabeth Lallier-Vergès, Philippe Bertrand
Publikováno v: Marine Geology. 112:57-69
Petrographical and geochemical studies of Neogene marine sediments from the Oman Sea (Leg 117, Sites 720, 724, 726 and 730), show a close relationship between the nature and amount of the organic matter, and the degree of degradation of organic matte
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5b5f8ac5c4920a25314f253a9ff5043
https://doi.org/10.1016/0025-3227(93)90161-n
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3
Trace elements as palaeoenvironmental markers in strongly mature hydrocarbon source rocks: the Cretaceous La Luna Formation of Venezuela
Autor: Alain Desprairies, Elisabeth Lallier-Vergès, Nicolas-Pierre Tribovillard, Fatima Laggoun-Défarge, Thierry Mongenot
Publikováno v: Sedimentary Geology
Sedimentary Geology, Elsevier, 1996, 103 (1-2), pp.23-37. ⟨10.1016/0037-0738(95)00078-X⟩
International audience; The Late Cretaceous La Luna Formation is the main hydrocarbon source-rock formation in Venezuela. In the Lake Maracaibo area, the formation shows a steep maturation gradient affecting sedimentary organic matter (OM) and clay m
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be3f950eb8b5970665c371c83d312e5f
https://hal-insu.archives-ouvertes.fr/hal-00142193
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4
Short-term organic cyclicities from the Kimmeridge Clay Formation of Yorkshire (G.B.): combined accumulation and degradation of organic carbon under the control of primary production variations
Autor: Elisabeth Lallier-Vergès, Alain Desprairies, Nicolas Tribovillard, Philippe Bertrand
Publikováno v: Organic Matter Accumulation ISBN: 9783540591702
This paper summarises different results acquired on the short-term organic cycles (about 30 000 years for one metre thick) from the Kimmeridge Clay Formation (Yorkshire, G.B.). The results, as a whole, support the fundamental interpretation that cons
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5619998d51bdc9c02f7ab3e03384f97e
https://doi.org/10.1007/bfb0117664
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5
Geochemical study of the Lac du Bouchet (Hte-Loire, France) Part II: water-sediments-organic matter interactions during the last 2500 years
Autor: Alain Desprairies, Dominique Lavergne, Eric Viollier, Andrew J. Patience, Didier Jézéquel, Gil Michard, Nicolas-Pierre Tribovillard, Gérard Sarazin, Monique Pepe, Marc Evrard, Patrick Albéric
Publikováno v: Organic Matter Accumulation ISBN: 9783540591702
The early diagenesis of the superficial sediment of the Lac du Bouchet has been studied by analysis of interstitial water and solid phase. 14C dating of the sediment gives 2500±350 years at a depth of 80 cm below the sediment-water Interface (SWI).
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::271e48159937afb1229882659361050d
https://doi.org/10.1007/bfb0117670
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7
Organic Sedimentation Response to Tectonic and Paleogeographic Influences in Celebes and Sulu Basins, West Pacific (ODP, Leg 124): ABSTRACT
Autor: Alain Desprairies, Ulrich Berner, E. Lallier-Verges, Manuel Pubellier, Fatima Laggoun-Défarge, Philippe Bertrand, M. Von Breymann
Publikováno v: AAPG Bulletin. 74
The objectives of Leg 124 of the Ocean Drilling Program were to determine the age and stratigraphy of the Celebes and Sulu seas, which are thought to record the history of complex tectonic and oceanographic events that have battered this Western Paci
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7529ba49d08689310e0fd2d3544d4f5c
https://doi.org/10.1306/44b4c1e8-170a-11d7-8645000102c1865d
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8
Relation entre le parametre b des smectites et leur contenu en fer et magnesium. Application a l'etude des sediments
Autor: Alain Desprairies
Publikováno v: Clay Minerals. 18:165-175
ResumeLe paramètrebdes smectites, à charge faible et empilement désordonné, est déterminé dans les diagrammes de diffraction X à partir des maxima d'intensité de la bande (06,33); ce paramètre montre une très bonne corrélation avec la tene
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e32efa156b0fff4e12e824f02cdc182
https://doi.org/10.1180/claymin.1983.018.2.05
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10
Relation entre la composition des smectites d'alteration sous-marine et leur cortege de terres rares
Autor: Alain Desprairies, Chantal Bonnot-Courtois
Publikováno v: Earth and Planetary Science Letters. 48:124-130
Resume Dans une serie de hyaloclastites et dans des basaltes de l'ocean Indien, les progres de l'alteration sous-marine de materiel volcanique se manifestent par l'introduction ou l'augmentation relative du fer dans le reseau des smectites. Au depart
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6657937de108d8f0215ee2877ed75010
https://doi.org/10.1016/0012-821x(80)90175-2
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