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中国地质大学科学技术发展院张帆（博士研究生），焦养泉*，等. 资源学院 构造与油气资源教育部重点实验室. AAPG Bulletin, JAN 2019. Enhancement of organic matter maturation due to radiogenic heat from uranium: A case study from the Ordos Basin in China
砂岩型；铀矿；碳质碎屑；成熟；演化；催化效应
2021/10/20
近日，中国地质大学资源学院焦养泉教授团队在国际顶级期刊《AAPG Bulletin》上刊发研究成果，首次报道发现了砂岩型铀矿对围岩碳质碎屑的成熟演化具有催化效应，即“碳质碎屑Ro的放射性催化效应”。国际同行给予了高度评价："I very welcome you case study on the radiogenic heat of uranium enhancement of organic m...
Carbon isotope ratios of organic matter in Bering Sea settling particles: Extremely high remineralization of organic carbon derived from diatoms
diatoms coccolithophores carbon isotope organic carbon remineralization rain ratio
2017/4/10
The carbon isotope ratios of organic carbon in settling particles collected in the highly-diatom-productive Bering Sea
were determined. Wet decomposition was employed to oxidize relatively fresh orga...
Stepwise combustion analyses of distinct nitrogen isotopic compositions on Paleoproterozoic organic matter
nitrogen isotopic composition Paleoproterozoic stepwise combustion method kerogen Gunflint Formati
2017/4/11
Nitrogen isotopic analyses were conducted on two kerogenous samples from the Gunflint Formation (ca. 1.9 Ga)
using the stepwise combustion technique to evaluate a potential analytical problem for the...
The role of mineral surfaces in the preservation and transformation of organic carbon: meso- to nano– scale spatial complexity of organic matter forms in organic-rich shales
mineral surfaces preservation transformation organic carbon meso- to nano– scale spatial complexity organic matter forms organic-rich shales
2012/3/30
Sequestration of organic matter (OM) in sediments is a fundamental biogeochemical process that regulates planetary temperature, the flux of free oxygen to the atmosphere and oceans, and the distributi...
Photochemical, microbial and metal complexation behavior of fluorescent dissolved organic matter in the aquatic environments
photodegradation microbial degradation metal complexation
2017/4/12
Chemical properties and reactivity of fluorescent dissolved organic matter (FDOM) are examined in this paper. They
are key issues to understand the biogeochemical processes in the aquatic environment...
Can pressure promote hydrocarbon generation from organic matter?—New experimental proof
pressure pyrolysis natural gas carbon and hydrogen isotopes
2017/8/9
In order to investigate if pressure can increase the yield of the yield of methane and gaseous hydrocarbon as a whole, both anhydrous and hydrous isothermal pyrolysis experiments were performed on Fus...
Linking allochthonous dissolved organic matter and boreal lake sediment carbon sequestration: The role of light-mediated flocculation
Linking allochthonous dissolved organic matter boreal lake sediment carbon sequestration The role of light-mediated flocculation
2014/4/21
We measured flocculation of dissolved organic carbon (DOC) in the water from a humic lake (DOC = 14.9 mg C L-1) and from an adjacent mire (DOC = 25.7 mg C L-1), in in situ enclosure experiments with d...
Diagenetic and sedimentological controls on the composition of organic matter preserved in California Borderland Basin sediments
Diagenetic and sedimentological controls the composition of organic matter preserved California Borderland Basin sediments
2014/4/23
Compound-specific radiocarbon (14C) contents, stable carbon isotopes, and abundances of phytoplankton and vascular plant derived lipid biomarkers (alkenones and fatty acids) were obtained from Santa B...
Dissolved organic matter in abyssal sediments: Core recovery artifacts
Dissolved organic matter abyssal sediments Core recovery artifacts
2014/4/22
We report measurements of pore-water dissolved organic carbon (DOC), dissolved organic nitrogen, total dissolved carbohydrates, dissolved free monosaccharides, and ammonium in recovered deep-sea sedim...
Hydrogen Isotopic (D/H) Composition of Organic Matter During Diagenesis and Thermal Maturation
deuterium, fossil fuel isotope exchange isotope fractionation catagenesis
2014/4/8
Changes in the D/H ratio of sedimentary organic matter (SOM) during thermal maturation have been difficult to interpret because the effects of hydrogen exchange and
kinetic fractionations are c...
Authigenic Illite and Organic Matter: The Principal Hosts of Vanadium in the Mecca Quarry Shale at Velpen, Indiana
Black Shale Illite Mecca Quarry Organic Matter Vanadium
2011/12/6
Abstract: The Mecca Quarry Shale Member from Velpen, Indiana contains abundant vanadium which occurs in solid solution within illite-rich illite-smectite (I-S) having an average content of 1.65 wt. % ...
Goethite Dispersibility in Solutions of Variable Ionic Strength and Soluble Organic Matter Content
Citrate Dispersion Flocculation Goethite Humic Acid Light Scattering Salicylate Soluble Organic Matter
2011/12/23
Abstract: The degree of flocculation of aqueous suspensions of microcrystalline goethite was measured in salts of monovalent, divalent and trivalent cations at pH 6.0?.5 over a range of ionic strength...
Adsorption of Water Vapor by Soils: Investigations of the Influence of Organic Matter, Iron, and Aluminum on Energetic Heterogeneity of Soil Clays
Soil constituents Surface heterogeneity Water adsorption
2011/12/29
Water vapor adsorption isotherms were measured for samples of loessial soil clays modified by removing organic matter and Fe and Al compounds. The isotherms were analyzed by the exponential adsorption...
Comparison of I/S Transformation and Maturity of Organic Matter at Elevated Temperatures
Illite/smectite Kinetics Vitrinite maturity
2011/12/29
Comparing the state of reaction advancement of I/S (illite content of illite/smectite mixed layer minerals) and organic matter (vitrinite reflectance) in instances of high temperature gradients allows...
Ammonium Substitution in Illite During Maturation of Organic Matter
Ammonium substitution ?Fixed-ammonium ?Hydrocarbon generation ?Illite/smectite transformation ?Organic maturation
2012/1/4
Pierre shale samples from a thin stratigraphic zone within the contact aureole of the lamprophyric Walsen dike record changes due to thermal effects that are not influenced by detrital differences. An...