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天然气地球科学 ›› 2012, Vol. 23 ›› Issue (3): 556–560.doi: 10.11764/j.issn.1672-1926.2012.03.556

• 天然气地球化学 • 上一篇    下一篇

和什托洛盖盆地北缘泥盆系海相烃源岩评价

 张家震, 徐备, 庞绪勇, 卫巍, 王宇   

  1. 1.内蒙古大学环境与资源学院，内蒙古 呼和浩特010021；
    2.北京大学地球与空间科学学院，北京100871；
    3.首钢地质勘查院，北京 100144
  • 收稿日期:2011-12-21 修回日期:2012-02-23 出版日期:2012-06-10 发布日期:2012-06-10
  • 通讯作者: 张家震zhangjiazhen@yeah.net. E-mail:zhangjiazhen@yeah.net.
  • 作者简介:张家震（1971-），男，山东无棣人，高级工程师，博士，主要从事石油地质学与构造地质学研究. E-mail：zhangjiazhen@yeah.net.
  • 基金资助:

    内蒙古大学高层次人才引进科研启动项目（编号：Z20100110）；国家自然科学基金项目（编号：41002129）联合资助.

Evaluation of Devonian Marine Source Rocks in Northern Margin of Heshentuoluogai Basin

 ZHANG  Jia-Shen, XU  Bei, PANG   Xu-Yong, WEI  Wei, WANG  Yu   

  1. 1.School of Environment and Resources,Inner Mongolia University,Huhhot 010021,China;
    2.School of Earth and Space Sciences,Peking University,Beijing 100871,China;
    3.Shougang Institute of Geological Exploration,Beijing 100144,China  
  • Received:2011-12-21 Revised:2012-02-23 Online:2012-06-10 Published:2012-06-10

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摘要：

应用地表露头样品的有机地球化学分析测试资料，从有机质丰度、类型、成熟度等方面，对和什托洛盖盆地北缘沙尔布尔山泥盆系海相烃源岩进行评价。研究表明：和布克赛尔组灰岩有机碳平均含量为0.31%、呼吉尔斯特组有机碳平均含量为0.72%，校正后分别达到中等烃源岩、好烃源岩的标准；有机显微组分以腐泥组为主，有机质类型全部为Ⅰ型；热演化程度适中，处于成熟阶段。虽然露头样品风化严重，导致各项分析测试数据存在不同程度的偏差，但沙尔布尔山地区泥盆系海相烃源岩具有一定的生烃能力是毋容置疑的。

关键词: 沙尔布尔山, 泥盆系, 海相烃源岩, 有机地球化学特征, 风化作用

Abstract:

Based on organic geochemical data of outcrop samples in the Shaerbuer Mountain which is located in the northern margin of Heshentuoluogai basin,we evaluate the Devonian marine source rocks,including organic abundance,kerogen types and thermal maturity.The results show that the average value of total organic carbon (TOC) of Hebukesaier Formation and Hujiersite Formation samples is 0.31% and 0.72%,respectively.After recovering TOC value,the former reach the standard of medium quality source rock and the latter is the good quality one.The main organic macerals mainly consist in the sapropel,and the kerogen type of organic matter is type I.The thermal maturity of source rock is at the mature stage.Though the measured geochemical data of outcrop samples are greatly influenced by surface weathering,it is confirmed that the Devonian marine source rocks in the Shaerbuer Mountain region have a certain hydrocarbon-generating potential.

 

Key words: Shaerbuer Mountain, Devonian, Marine source rock, Organic geochemistry, Weathering.

中图分类号: 

  • TE112.1+15

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