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断层相关褶皱概念模型中的裂缝域
  • ISSN号:0563-5020
  • 期刊名称:《地质科学》
  • 时间:0
  • 分类:P542[天文地球—构造地质学;天文地球—地质学]
  • 作者机构:[1]中国石油大学北京地球科学学院,北京102249, [2]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
  • 相关基金:国家科技重大专项(编号:2011ZX05003-002)和国家自然科学基金项目(编号:41272164)资助.
中文摘要:

断层相关褶皱对裂缝的控制作用主要体现在岩层的几何形态对裂缝方位的影响和变形对岩石破裂的控制程度。本文在断层相关褶皱概念模型的基础上提出了裂缝域,并以Suppe的平行膝折概念模型为对象,利用几何学方法对模型中区域性裂缝的裂缝域进行分区描述,并提出了断层相关褶皱的曲线概念模型中区域性裂缝的分布规律。以新疆卡普沙良河一处断层转折褶皱剖面上裂缝的实测数据为依据,对模型进行验证,发现测量结果同模型基本一致。该方法为前陆冲断带地区断层相关褶皱对裂缝控制作用的定量预测提供了一种全新的思路。

英文摘要:

The impact on fractures in fault-related fold is mainly performed at two aspects:The effect of geometry shape of stratum on fracture orientation and the effect of rock deformation on the fracture development degree. The regional fracture is characterized by stable azimuth in the weak area of structural deformation, no apparent horizontal dislocation on the fracture surface, perpendicular to the rock stratum and the fracture orientation would be changed with the variation of attitude of stratum, which is the basis of the theory of fracture domain. The conception for fracture domain is referred based on the conception model. Geometry is applied on the analysis and description for the distribution of the regional fracture orientation in the Suppe's parallel kink conception model, while the law of the distribution of fractures orientations in curved conception model is proposed. Generally, the conception model could be divided into 5 or 6 parts based on the structure position and different parts have different orientations of regional fractures. Generally, regional fractures in the parts of hinterland, crest and footwall are almost upright. Dip directions of the fractures in the forelimb are always the same direction to that of major fault, while in the backlimb, the dip directions are opposite. The dip angles of regional fractures are controlled by the dip angle of fault and forelimb. According to the data of the measured fractures near the outcrop of fault-related fold near the Kapushaliang River in Xinjiang,the analysis of conception model is in good accordance. This method could provide a new thought to solve the problem for studying the impaction on fractures of fault-related fold in the foreland basin.

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期刊信息
  • 《地质科学》
  • 北大核心期刊(2011版)
  • 主管单位:中国科学院
  • 主办单位:中国科学院地质与地球物理研究所
  • 主编:肖文交
  • 地址:北京9825信箱
  • 邮编:100029
  • 邮箱:dzkx@mail.igcas.ac.cn
  • 电话:010-82998115 82998109
  • 国际标准刊号:ISSN:0563-5020
  • 国内统一刊号:ISSN:11-1937/P
  • 邮发代号:2-392
  • 获奖情况:
  • 中国期刊方阵“双百期刊”,除SCI外被国外的主要期刊检索机构检索
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰地学数据库,荷兰文摘与引文数据库,美国剑桥科学文摘,英国动物学记录,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:14126