新生代天山隆升与塔里木盆地北缘现今构造面貌关系——来自岩石声发射的证据

张宇航

新生代天山隆升与塔里木盆地北缘现今构造面貌关系——来自岩石声发射的证据

张宇航^{1, 2,}

1.
油气资源与探测国家重点实验室, 北京 102249
2.
中国石油大学盆地与油藏研究中心, 北京 102249

基金项目:

全国油气资源战略选区调查与评价国家专项（第二批） 2009GYXQ02-05

国家自然科学基金项目 41172125

国家科技重大专项 2011ZX05002-003-001

详细信息

作者简介:
张宇航(1983-), 男, 中国石油大学(北京)在读博士研究生, 主要从事构造地质学研究。E-mail:zyh_yx@126.com

中图分类号: P553
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出版历程
- 收稿日期: 2011-12-07
- 刊出日期: 2012-06-01

RELATIONSHIP BETWEEN CENOZOIC TIANSHAN MOUNTAIN UPLIFTING AND CURRENT TECTONIC TOPOGRAPHY IN NORTH MARGIN OF TARIM BASIN:AN EVIDENCE FORM ROCK ACOUSTIC EMISSION

ZHANG Yu-hang^{1, 2
,}

1.
State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China
2.
Basin & Reservoir Research Center, China University of Petroleum, Beijing 102249, China

摘要

摘要: 对塔里木盆地北缘四石厂剖面和库车河剖面进行声发射样品采集，并对志留系、二叠系、三叠系岩石样品进行岩石声发射地应力测试，以研究强烈构造活动下塔里木盆地北缘（柯坪隆起和库车坳陷）的地应力特征。测试结果显示，志留系、二叠系、三叠系样品所记录的岩石声发射最大主应力分别为57.74 MPa、57.73 MPa、58.86 MPa。结合前人对地应力的研究成果，认为在塔里木盆地北缘喜马拉雅期构造运动能够被岩石记载的应力约为57 MPa左右。塔里木盆地北缘自志留纪至今的地质历史过程中喜马拉雅晚期遭受的构造运动最为强烈，造成塔北地区现今的构造面貌。这与新生代天山隆升有密切关系，印度板块与欧亚板块碰撞是其最主要的动力学因素。
- Kaiser效应 /
- 声发射 /
- 最大主应力 /
- 天山隆升 /
- 塔里木盆地北缘
Abstract: Strongly tectonic activity had been observed by field outcrop in the northern margin of the Tarim Basin. In order to find out regional stress field setting of active structure movement, the authors collected rock acoustic emission samples in Sishichang and Kuqa River section in the north margin of the Tarim Basin, and then experiment with Silurian, Triassic, Permian samples, rock ground stress test of acoustic emission. The recorded results of the maximum principal stress were 57.74 MPa, 57.73 MPa and 58.86 MPa respectively. Summarized previous research results of study area, the rocks recorded the ground stress of the Himalayan movement about 57 MPa, in the northern margin of the Tarim Basin. Late Himalayan period had been suffered intensively, during the geology history stage of the northern margin, since Silurian period. Today's tectonic features were formed. It is intimately relation to Cenozoic Tianshan Mountain uplifting; the main kinetic factor is Eurasian plate and India plate collision.
- Kaiser Effect /
- acoustic emission /
- maximum principal stress /
- Tianshan Mountain uplifting /
- the north margin of Tarim Basin

HTML全文

图 1 塔北地区地质略图

Figure 1. Schematic geological map in Northern of Tarim Basin

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图 2 四石厂剖面野外信手剖面

Figure 2. Field sketch profile of Sishichang section

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图 3 柯坪地区样品采集点

Figure 3. Sampling station of Keping area

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图 4 库车地区样品采集点（三叠系黄山街组）

Figure 4. Sampling station of Kuqa area

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图 5 岩石声发射响应与时间曲线

Figure 5. Cumulative Acoustic Emission count-time graph for rock tests

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表 1 岩石声发射主应力值统计表

Table 1. Cartogram of primary stress by rock acoustic emission

表 2 库车坳陷中新生代构造期次与最大主应力值

Table 2. Structural stage and primary stress, Kuqa depression

表 3 库车坳陷岩石声发射地应力统计表

Table 3. Statistics of crustal stress by rock acoustic emission of Kuqa depression

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