搜索结果: 1-15 共查到“理学 diagenetic”相关记录37条 . 查询时间(0.053 秒)
中国地质大学科学技术发展院常标(博士生)，李超*，黄俊华*等. BGEG国家重点实验室, Proceedings of the National Academy of Sciences of United States of America（2020），Massive formation of early diagenetic dolomite in the Ediacaran ocean: Constraints on the “dolomite problem”
早期海洋；大规模；早期；白云石；
2021/10/15
2020年6月8日，生物地质与环境地质国家重点实验室李超教授团队在白云石地质成因领域取得重要进展，相关成果发表于国际著名综合性学术期刊《PANS》，题目为《埃迪卡拉纪海洋大规模早期成岩白云石的形成:对“白云石之谜”的约束》，该实验室博士生常标为第一作者，生物地质与环境地质国家重点实验室李超教授、地质过程与矿产资源国家重点实验室黄俊华教授为共同通讯作者。
王雨轩，徐尚，郝芳 等，资源学院 构造与油气资源教育部重点实验室. GSA Bulletin, December 2019. Multiscale petrographic heterogeneity and their implications for the nanoporous system of the Wufeng-Longmaxi shales in Jiaoshiba area, Southeast China: Response to depositional-diagenetic pro
富有机质；页岩；多尺度；非均质；性特征
2021/10/15
近日，资源学院博士生王雨轩在国际著名地质学期刊《GSA Bulletin》上刊发研究成果，研究成果主要揭示了重庆涪陵地区五峰-龙马溪组富有机质页岩的多尺度非均质性特征，探讨了富有机质页岩非均质的成因及其对页岩纳米孔隙体系的影响。
Diagenetic clay mineral distribution in Mesoproterozoic sandstones of the Cariewerloo Basin, South Australia – implications for uranium mobilisation
Diagenetic clay mineral distribution Mesoproterozoic sandstones the Cariewerloo Basin implications uranium mobilisation
2012/3/30
A thick sequence of largely undeformed red-bed sandstones of Mesoproterozoic age, collectively termed the Pandurra Formation, overlies a wide area of crystalline basement of the central and eastern Ga...
Distribution of combined monosaccharides in sediments from the Lake Rawa Danau, West Java, Indonesia: Sources and diagenetic fate of carbohydrates in a tropical wetland
biomarker diagenesis wetland vegetation changes
2017/4/12
Monosaccharide compositions were determined for a sediment core (RD-1) collected from a tropical wetland, Rawa
Danau, West Java, Indonesia (location 6°11′ S and 105°59′ E) to assess the sources and d...
Diagenetic influences on iron-bearing minerals in Devonian carbonate and siliciclastic rocks of Estonia
Devonian diagenesis carbonate rocks siliciclastic rocks mixed carbonate-siliciclastic rocks
2009/10/22
The Estonian Devonian sediments consist of carbonate, siliciclastic, and mixed carbonate-siliciclastic deposits that have undergone extensive dolomitization. Chemical analysis of 165 samples and XRD m...
Impact-induced and diagenetic changes in minerals in the sandy ejecta of the Kärdla crater,NW Estonia
impact craters ejecta shock metamorphism C-rich particles stable carbon isotopes
2009/10/22
The sand-rich ejecta containing a considerable amount of mineral grains with impact-induced features was studied in five boreholes drilled around the Kärdla impact meteorite structure. Quartz gra...
Decadal diagenetic effects on d13C and d15N studied in varved lake sediment
Decadal diagenetic effects on d13C d15N studied varved lake sediment
2014/4/18
To assess the long-term (27 yr) effects of sediment aging on stable carbon and nitrogen isotope values (δ13C and δ15N), we used a collection of eight freeze cores of annually laminated (varved) lake s...
Decadal diagenetic effects on d13 C and d15N studied in varved lake sediment
Decadal diagenetic effects varved lake sediment
2014/4/18
To assess the long-term (27 yr) effects of sediment aging on stable carbon and nitrogen isotope values (d13
C
and d15N), we used a collection of eight freeze cores of annually laminated (varved) lak...
Diagenetic changes in Concholepas concholepas shells (Gastropoda,Muricidae) in the hyper-arid conditions of Northern Chile – implications for palaeoenvironmental reconstructions
Diagenetic changes Concholepas concholepas shells hyper-arid conditions
2010/1/19
Variations in the chemical composition of fossil biogenic carbonates, and in particular of mollusc shells, have been used in a range of palaeoenvironmental reconstructions. It is of primary importance...
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...
Facies-related diagenetic alteration in lacustrine–deltaic red beds of the Paleogene Ergeliin Zoo Formation (Erdene Sum area, S. Gobi, Mongolia)
Lacustrine–deltaic Carbonate Phyllosilicates Diagenesis Paleogene Mongolia
2011/11/14
The Late Eocene Ergeliin Zoo Formation, Mongolia, was subdivided into four facies associations/stratigraphic units which
are characterized by various carbonate minerals: (I) mud–sand flat (low-Fe dol...
Distribution of viruses and bacteria in relation to diagenetic activity in an estuarine sediment
viruses bacteria sediment
2014/5/21
The distribution of viruses and bacteria was investigated in relation to bacterial sulfate reduction and total respiration (production of dissolved inorganic carbon, [DIC]) in a coastal sediment. Vira...
A pH plate fluorosensor (optode) for early diagenetic studies of marine sediments
A pH plate fluorosensor early diagenetic marine sediments
2014/5/26
Pore water pH distributions are closely coupled to early diagenetic reactions and transport processes in surficial sediments. In this study, an optical plate fluorosensor for rapid two-dimensional det...
Comparison of Evolution of Trioctahedral Chlorite/Berthierine/Smectite in Coeval Metabasites and Metapelites from Diagenetic to Epizonal Grades
AEM Berthierine Bukk Mountains Chlorite Low-grade Metamorphism Reaction Progress Smectite TEM XRD
2011/12/5
Abstract: The evolution of texture, structure and chemical composition of chloritic clays in coeval pairs of metabasites and metapelites of a prograde sequence from the Bükk Mountains has been investi...
Linkages among the bioreactivity, chemical composition, and diagenetic state of marine dissolved organic matter
bioreactivity chemical composition
2014/5/30
Bacterial growth and the chemical composition of dissolved organic matter (DOM) were followed during a 10-
d decomposition experiment with fresh, algal-derived DOM from an Arctic ice floe. Duri...