运用剥蚀量恢复技术进行构造圈闭演化研究&mdash;&mdash;以川西坳陷中段须家河组为例

李林涛, 庞雄奇, 熊亮, 邓克, 张建华

doi:10.11764/j.issn.1672-1926.2010.03.441

天然气地球科学 >

2010 , Vol. 21 >Issue 3: 441 - 448

DOI: https://doi.org/10.11764/j.issn.1672-1926.2010.03.441

天然气地质学

运用剥蚀量恢复技术进行构造圈闭演化研究——以川西坳陷中段须家河组为例

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1.中国石油大学(北京)油气资源与探测国家重点实验室，北京 102249；
2.中国石油大学(北京)盆地与油藏研究中心，北京 102249；
3.中国石化西南油气分公司勘探开发研究院,四川成都 610081

李林涛(1980-)，男，陕西富平人，博士,主要从事油气成藏机理与分布模式研究工作.

收稿日期: 2009-10-19

修回日期: 2010-02-25

网络出版日期: 2010-06-10

基金资助

国家基础研究发展规划（“973”）项目(编号：2006CB202308)资助.

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Recovery of Structural Trap Evolution by Mean of Denudation Value: A Case of Upper Triassic Xujiahe Formation Layer in Middle Section of West Sichuan Depression

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1.State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum, Beijing 102249, China;2.Basin and Reservoir Research Center, China University ofPetroleum, Beijing 102249, China;3.SINOPEC Southwest Branch Institute of Exploration andDevelopment, Chengdu 610081, China

Received date: 2009-10-19

Revised date: 2010-02-25

Online published: 2010-06-10

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摘要

提出运用剥蚀量恢复技术进行构造圈闭的形成与演化研究，即通过对与构造圈闭形成密切相关的几次构造抬升所形成的不整合面进行剥蚀量恢复，可以了解不同地史时期构造圈闭的分布情况，分析它们的形成与演化过程。以川西坳陷中段为例，通过应用不同技术分别对研究区3个关键不整合面进行剥蚀量恢复，恢复结果表明，川西坳陷中段孝泉构造—新场构造—合兴场构造、大邑构造形成于安县运动；晚印支运动期鸭子河构造、马井构造形成，洛带构造开始形成；喜马拉雅运动使研究区先存构造再次强烈隆升，并催生了石泉场构造和丰谷构造。依据圈闭条件和保存条件将它们划分为4种类型。

关键词： 构造圈闭; 剥蚀量; 不整合; 须家河组; 川西坳陷

本文引用格式

李林涛, 庞雄奇, 熊亮, 邓克, 张建华 . 运用剥蚀量恢复技术进行构造圈闭演化研究——以川西坳陷中段须家河组为例[J]. 天然气地球科学, 2010 , 21(3) : 441 -448 . DOI: 10.11764/j.issn.1672-1926.2010.03.441

Abstract

In this paper, we proposed the structural trap recovery by mean of denudation value. By recovery of denudation value on the main unconformities caused by tectonic movements, we can identify the paleogeomorphology of the region and integrate the formation and evolution process of the structural trap. In the middle section of west Sichuan depression, there are three main unconformities of the upper Triassic Xujiahe Formation layer. The results of denudation value recovery suggest that the structural traps of Xiaoquan-Xinchang, Hexingchang and Dayi in the Xujiahe Formation layer were formed at the Anxian tectonic movement, the structural traps of Yazihe, Majing and Luodai were formed at the late Indo-Chinese movement. All of these structural traps were activated and uplifted during the Himalayan movement, associated with the formation of Shiquanchang and Fenggu structural traps. Based on these structural traps and preservation conditions, four types of the region were divided.

Key words： Tructural trap; Denudation value; Unconformity; Xujiahe Formation; West Sichuan depression.

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