Search results for "Rock eval"

showing 2 items of 2 documents

Specifications for carbonate content quantification in recent marine sediments using Rock-Eval pyrolysis

2019

11 pages; International audience; The amount of CaCO3 in sediments and/or sedimentary rocks is usually measured by calcimetry while the nature of the carbonates is determined by X-ray diffraction. Recently, a carbonate recognition method based on the results of Rock-Eval pyrolysis was proposed in 2014 by Pillot et al. [1]. Rock-Eval pyrolysis is also widely used for the characterization of recent sediments. However, later in 2015 Baudin et al. [2] noticed that some of the characteristics of recent sediments tended to produce different results from those of more classical Rock-Eval analyses, causing bias in interpretations.In this study, the thermal stability of fossil and recent marine carb…

020209 energyGeochemistrySalt (chemistry)Mineralogy[SDU.STU]Sciences of the Universe [physics]/Earth Sciences02 engineering and technologyAnalytical Chemistrychemistry.chemical_compound020401 chemical engineering[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry0202 electrical engineering electronic engineering information engineeringRecent sedimentsAcid attack0204 chemical engineeringChemical decompositionComputingMilieux_MISCELLANEOUSTotal organic carbonchemistry.chemical_classificationCalciteRock-EvalSedimentCarbonates decompositionFuel Technologychemistry13. Climate action[SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/StratigraphyCarbonateSedimentary rockRock evalClay mineralsPyrolysisGeologyPyrolysis
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Paléoenvironnements et caractérisation des roches mères pétrolières des séries pré-salifères du bassin intérieur du Gabon

2003

Resume Le bassin interieur du Gabon, dont l'histoire est liee a la separation des continents Sud-Americain et Africain, comprend des depots continentaux fluvio-lacustres, localement glaciaires, dates du Precambrien superieur a l'Aptien p.p., surmontes par des facies marins aptiens et albiens. L'analyse par pyrolyse Rock–Eval d'echantillons d'affleurements et de forages preleves dans ce bassin met en evidence la presence de facies siliciclastiques riches en matiere organique (jusqu'a 25 % de carbone organique total) de types I et II. Ces niveaux, qui se rencontrent dans le Permien, le Neocomien-Barremien ainsi que dans l'Aptien, constituent d'excellentes roches meres et sont a l'origine des …

Total organic carbonGlobal and Planetary ChangeAptianGeneral Earth and Planetary SciencesCentral africaForestryMesozoicRock evalGeologyComptes Rendus Geoscience
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