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Author Wang, Hongmei ♦ Ma, Xiangru ♦ Liu, Deng ♦ Yang, Xiaofen ♦ Li, Jihong
Source SpringerLink
Content type Text
Publisher Higher Education Press
File Format PDF
Copyright Year ©2007
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Earth sciences ♦ Geology, hydrology & meteorology
Subject Keyword modern oceans ♦ productivity ♦ biochemicals ♦ biofilm ♦ sedimentary organic matter ♦ hydrocarbon source rocks ♦ Geosciences
Abstract Understanding the dynamics of organic matter in modern marine water columns greatly favors the geobiological evaluation of hydrocarbon source rocks. Biolipids could make great contribution to petroleum hydrocarbons due to their comparable chemical components and the slightly refractory characteristics of biolipids during the microbial/thermal degradation. A variety of environmental factors such as temperature, CO$_{2}$ and salinity could affect the biochemical contents in microorganisms. As a result, microorganisms living in a changing environmental condition might have a different contribution to the petroleum formation. Organic carbon flux is shown to bear a positive correlation with the primary productivity only within a certain range of biomass volumes in a specific biohabitat. Furthermore, organic matter is degraded much quickly in a water column with oxic conditions. Therefore, the anoxic condition, along with the enhanced biological productivity, would be one of the significant factors in the formation of high-quality hydrocarbon source rocks. The formation of biofilms and microbial mats favors the preservation of sedimentary organic matter by decreasing the degradation rate of organic matter. Identification of biofilms and microbial mats in sedimentary rocks will thus greatly help to understand the depositional processes of organic matter finally preserved in hydrocarbon source rocks.
ISSN 16737385
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2007-01-01
Publisher Institution Chinese Universities
Publisher Place Beijing
e-ISSN 16737490
Journal Frontiers of Earth Science in China
Volume Number 1
Issue Number 4
Page Count 6
Starting Page 399
Ending Page 404

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Source: SpringerLink