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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第37卷

期数:

2015年第01期

页码:

76-84

栏目:

基础地质与矿产地质

出版日期:

2015-01-15

文章信息/Info

Title:

Distribution of Bicyclic Alkanes of Source Rocks of Yanchang Formation in Xifeng Area of Ordos Basin and Their Biological Sources

文章编号:

1672-6561(2015)01-0076-09

作者:

吉利明; 梁晓飞; 贺聪; 吴远东

1. 甘肃省油气资源研究重点实验室/中国科学院油气资源研究重点实验室,甘肃 兰州 730000; 2. 中国科学院大学,北京 100049

Author(s):

JI Li-ming; LIANG Xiao-fei; HE Cong; WU Yuan-dong

1. Key Laboratory of Petroleum Resources of Gansu Province/Key Laboratory of Petroleum Resources Research of Chinese Academy of Sciences, Lanzhou 730000, Gansu, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China

关键词:

两环烷烃; 延长组; 烃源岩; 生物标志物; 三叠系; 葡萄藻; 西峰地区; 鄂尔多斯盆地

Keywords:

bicyclic alkane;  Yanchang Formation;  source rock;  biomarker;  Triassic;  Botryococcus braunii;  Xifeng area;  Ordos Basin

分类号:

P618.13;TE122.1

DOI:

-

文献标志码:

A

摘要:

鄂尔多斯盆地西南部西峰地区三叠系延长组烃源岩检出丰富的两环烷烃,主要为C12~C14和C15、C16两组两环烷烃。其相对丰度表现出3种源岩模式:①以低碳数两环烷烃为主,出现于长71和长81段非烃源岩;②两组两环烷烃都很丰富,出现于长73段富有机质烃源岩;③以高碳数两环烷烃为主,主要发现于长73段烃源岩,也见于长72和长81段。尽管长7段热演化程度基本一致,但补身烷异构化指数变化明显,表明补身烷重排不仅受热演化的影响,而且受有机质来源和沉积环境的控制。延长组烃源岩具有明显的高补身烷优势,反映了烃源岩的还原性沉积环境。烃源岩高丰度C15、C16两环烷烃的检出则指示该地区晚三叠世发育淡水湖泊。葡萄藻不仅是该地区中生界石油的重要母质来源,而且可能是这些两环类标志物的直接生源。

Abstract:

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参考文献/References:

-

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备注/Memo

备注/Memo:

收稿日期:2014-10-29
基金项目:国家自然科学基金项目(41172131);甘肃省油气资源研究重点实验室专项项目(1309RTSA041)
作者简介:吉利明(1963-),男,陕西咸阳人,研究员,博士研究生导师,理学博士,E-mail:jilimin@lzb.ac.cn。

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更新日期/Last Update: 2015-02-04