胶莱盆地莱阳凹陷莱西断层断裂性质及成因机制

张波; 吴智平; 刘华; 李众

doi:10.11781/sysydz201702213

胶莱盆地莱阳凹陷莱西断层断裂性质及成因机制

doi: 10.11781/sysydz201702213

张波^1,2,
吴智平¹,
刘华²,
李众³

1.
中国石油大学地球科学与技术学院, 山东青岛 266580
2. 中国石化胜利油田分公司勘探开发研究院, 山东东营 257015
3. 中国石油大学(北京) 地球科学学院, 北京 102249

基金项目: 中国石油化工股份有限公司油气勘探专项（P13134）资助。

详细信息

作者简介:
张波(1972-),男,在读博士研究生,高级工程师,从事油气勘探及石油地质综合研究。E-mail:zhangbo667.slyt@sinopec.com。

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出版历程
- 收稿日期: 2016-07-12
- 修回日期: 2017-01-06
- 刊出日期: 2017-03-28

Fracture properties and formation mechanism of Laixi fault in Laiyang Sag, Jiaolai Basin

1.
School of Geosciences, China University of Petroleum, Qingdao, Shandong 266580, China
2. Exploration & Development Research Institute, SINOPEC Shengli Oilfield Company, Dongying, Shandong 257015, China
3. College of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China

摘要

摘要: 为了明确胶莱盆地莱阳凹陷莱西断层的断裂性质及成因机制，利用莱阳凹陷重力资料及新采集处理二维地震资料，对莱西断层进行识别与描述，并对其几何学特征和形成机理进行分析。莱西断层发育带状展布、花状构造、海豚效应等构造样式，并且断层两侧地质体沿断层走向左行错开约4.4km，是一条典型的左行走滑断层。晚白垩世末期-古新世时期，研究区构造应力场为NEE-SWW向挤压，牟平-即墨断裂带由晚白垩世早期的伸展作用转换成右行走滑，而莱西断层剪切方向与其相反，是牟平-即墨断裂带的共轭左行走滑断层。莱西断层并不控制白垩纪地层的沉积，因此不是莱阳凹陷的西部控凹断层，而是凹陷内部的一条分带断层，在其切割作用下莱阳凹陷被分成东西2部分。
- 共轭断层 /
- 走滑断层 /
- 牟平-即墨断裂带 /
- 莱西断层 /
- 莱阳凹陷 /
- 胶莱盆地
Abstract: The Laixi fault was identified and described, and its geometric features and formation mechanism were also analyzed based on the gravity data and new 2D seismic data of the Laiyang Sag in order to clarify the fracture properties and formation mechanism of the Laixi fault. Several structural styles were found in the Laixi fault, such as zonal distribution, flower structure and dolphin effect. The geologic bodies on both sides of the fault showed a sinistral offset of 4.4 km, indicating a typical sinistral strike-slip fault. From the Late Cretaceous to Paleocene, the tectonic stress field in the study area was NEE-SWW compression. The activity of the Muping-Jimo fault zone converted from extension to dextral strike-slip, while the Laixi fault had an opposite direction, which was a conjugate strike slip fault of the Muping-Jimo fault zone. The Laixi fault did not control the sediment of the Cretaceous; therefore, it was not a concave boundary fault in the west of the Laiyang Sag, but an internal split fault, which cut the Laiyang Sag into two parts.
- conjugate fault /
- strike-slip fault /
- Muping-Jimo fault zone /
- Laixi fault /
- Laiyang Sag /
- Jiaolai Basin

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参考文献(37)

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胶莱盆地莱阳凹陷莱西断层断裂性质及成因机制

doi: 10.11781/sysydz201702213

作者简介:
张波(1972-),男,在读博士研究生,高级工程师,从事油气勘探及石油地质综合研究。E-mail:zhangbo667.slyt@sinopec.com。

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Fracture properties and formation mechanism of Laixi fault in Laiyang Sag, Jiaolai Basin

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留言板

胶莱盆地莱阳凹陷莱西断层断裂性质及成因机制

doi: 10.11781/sysydz201702213

作者简介: 张波(1972-),男,在读博士研究生,高级工程师,从事油气勘探及石油地质综合研究。E-mail:zhangbo667.slyt@sinopec.com。

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出版历程

Fracture properties and formation mechanism of Laixi fault in Laiyang Sag, Jiaolai Basin

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出版历程

目录

作者简介:
张波(1972-),男,在读博士研究生,高级工程师,从事油气勘探及石油地质综合研究。E-mail:zhangbo667.slyt@sinopec.com。