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Biomarker assemblage. of Resin-Genetic Immature Source Rocks and Their Geological Significance

Science China Chemistry 1993年第6期36卷 740-750页

作者：王铁冠 Jianghan Petroleum Institute Jingzhou 434102 PRC

In view of the exploration cases of immature coal-associated hydrocarbons in the world, it can be seen that resinite and exudatinite are important macerals in Huangxian and Baise brown coals on the basis of a random sampling investigation from twelve Chinese Tertiary coal-bearing basins, and resin-genetlc compounds, i.e. isopimarane, abietane, simonellite, retene, etc., account for 60% and more of total hydrocarbon fractions in the soluble parts of both the brown coals. Owing to the effect of redox environmental factors during sedimentary and diagenetic phases, the aromaticity of resin-genetic compounds is apparently different in both kinds of brown coals, it probably is one of the important reasons why naphthenic base or aromatic base oils have resulted.

关键词： Immature erude oils resinite exudatinite isopimarane simonellite biomarker assemblage.

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Hydrocarbon-water-rock interactions in the diagenetically altered system near major unconformities in Tarim Basin

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Chinese Science Bulletin 1996年第19期41卷 1631-1635页

作者：蔡春芳梅博文马亭陈传平柳常青 Jianghan Petroleum Institute Jingsha 434102 China

In the view of reservoir fluid geochemistry, we have proposed that there exist bacterially-mediated organic-inorganic diagenetic alterations, i.e. hydrocarbon-water-rock interactions in the North Tarim, and that organic acids were formed in situ by biodegradation of crude oils. The proposal is consistent with discussion from pyrolysis experiments. 1 Evidence from reservoir fluid geochemistry 1.1 Chromatographic characteristics of crude oils and extracts Normal crude oils produced from

关键词： organic acids hydrocarbon-water-rock interactions diagenetic mineral assemblage.

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Petrology and high-pressure mineral assemblage.of maflc-ultramaflc rocks of ultrahigh-pressure metamorphic zone in the Dabie Mountains

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Science China Earth Sciences 1996年第3期39卷 329-336页

作者：樊祺诚刘若新张旗赵大升马宝林李齐 Institute of Geology. State Seismological Bureau. Beijing 100029 China Institute of Geology. Chinese Acamedy of Sciences.Beijing 100029.China

The relation between edogite and mafic-ultramafic rocks of Maowu, Bixiling and Nanshanling in Dabie Mountains represents three different kinds of occurrence relations. Their protoliths are bedded cumulate formed by crystallization differentiation of basic magma, which experienced ultrahigh-pressure metamorphism under the mantle condition at the depth of more than 120- 150km during the colli-sion-subduction between the Yangtze Plate and North China Plate. Ti-dinohumite + Ti-chondrodite + magnesite + Al-poor pyroxene is the typical high-pressure mineral assemblage.of mafic-ultramafic rocks which reveals the participation of H2O, CO2 and other volatiles-containing fluid in the ultrahigh-pressure metamorphism.

关键词： Dabie Mountains mafic-ultramafic rock high-pressure mineral assemblage.

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