中、东太平洋沉积岩样低成熟烃组成与演化及其受控因子对比

杨丹; 扈传昱; 于培松; 武光海; 倪建宇; 张海生; 姚龙奎; 卢冰

doi:10.3724/SP.J.1140.2010.06099

中、东太平洋沉积岩样低成熟烃组成与演化及其受控因子对比

1 国家海洋局第二海洋研究所, 国家海洋局海洋生态系统和生物地球化学重点实验室, 杭州 310012;
2 国家海洋局第二海洋研究所, 国家海洋局海底科学重点实验室, 杭州 310012

基金项目:

国家海洋局第二海洋研究所基本科研业务费专项(JG200823,JG200825)

国家海洋局青年海洋科学基金项目(2009514)

国家自然科学基金项目(40676061)

大洋矿产资源勘探开发专项(DY105-02-01)

详细信息

作者简介:
杨丹(1976-),女,工程师,硕士,主要从事海洋地球化学研究,E-mail:yangdan126@126.com

中图分类号: P59
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出版历程
- 收稿日期: 2010-01-29
- 修回日期: 2010-07-12

A COMPARATIVE STUDY OF THE COMPOSITIONS AND EVOLUTION OF THE LOW-MATURE HYDROCARBON AND THEIR CONTROLLING FACTORS FOR THE CORE SEDIMENTS FROM MID-PACIFIC AND EAST-PACIFIC BASINS

1 Key Laboratory of Marine Ecosystem and Biogeochemistry, State Oceanic Administration, Hangzhou 310012, China;
2 Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China

摘要

摘要: 定量分析了赤道中、东太平洋MP2001-01和ES0103沉积岩样中有机碳、可溶有机质(氯仿抽提物)及其族组成(总烃、饱和烃、芳烃、非烃、沥青质)、生物标志物(正构烷烃、类异戊二烯、萜类化合物),在对两站区沉积岩样低熟烃的认定基础上,进行物源和源性的地球化学对比,研究它们的共性与差异性。研究发现,无论是在含量、族组成、演化程度、物质来源、沉积环境以及受控因子等方面都有明显的区别,这些差异主要是环境因素造成。两站柱样分别位于太平洋中心开阔深海盆地,它们之间被莱恩火山链隔开,它们的地理位置不同,两站区物质来源和沉积环境(氧化或还原)具有明显的差异,而南极底层流的影响是两站区低成熟烃组成特征、演化程度的主要环境受控因子。
- 正构烷烃 /
- 类异戊二烯 /
- 萜类化合物 /
- 演化程度 /
- 受控因子 /
- 赤道太平洋
Abstract: Organic carbon, soluble organic matter (chloroform extractive) and group composition (total hydrocarbon, saturated hydrocarbon, arene, nonhydrocarbons and asphaltine), and biomarkers (n-alkannes, isoprenoids and terpenoids) of the samples from two stations MP2001-01 and ES0103 in the equatorial Pacific were analyzed. The organic matters from the two stations were recognized as the low-mature hydrocarbon. The physical properties and the source materials of the hydrocarbon as well as their similarity and difference were studied. There are obvious difference in their content, group compositions, evolutionary history, source materials, sedimentary environment and controlled factors. These differences were mainly dependant upon environment. The two stations were separated by the Line Volcanic Chain in the central Pacific basin. There are obvious differences of source materials and sedimentary environment (oxidation/reduction) between the two stations. Antarctic bottom current is the major factor influencing the composition and evolution of the low-mature hydrocarbon.
- the equatorial Pacific /
- soluble organic matter /
- group composition /
- n-alkannes /
- isoprenoids /
- terpenoids

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