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现代地质 ›› 2005, Vol. 19 ›› Issue (4): 501-507.

• 地层与构造 • 上一篇    下一篇

缝合线研究的新进展--以湖北大冶铁山地区为例

赵健1,罗根明1,曾佐勋1,2,姬献峰1,程明1,2   

  1. 1中国地质大学地球科学学院,湖北 武汉430074;2华中构造力学研究中心,湖北 武汉430074
  • 收稿日期:2005-06-15 修回日期:2005-09-21 出版日期:2005-04-20 发布日期:2005-04-20
  • 作者简介:赵健,男,学士,1982年出生,地质学专业,主要从事构造地质方面的研究工作。
  • 基金资助:

    国家自然科学基金项目(49972068);国家理科基地班基金项目;国家理科基地创建优秀名牌课程项目;中国地质大学教学研究项目。

New Progress of the Stylolite Research—Taking Stylolites in Tieshan Area, Daye City, Hubei Province as an Example

ZHAO Jian1, LUO  Gen-ming1, ZENG  Zuo-xun1,2, JI Xian-feng1, CHEN Ming1,2   

  1. 1Faculty of Earth Sciences, China University of Geosciences, Wuhan, Hubei430074, China;
    2Huazhong Tectonomechanical Research Center, Wuhan, Hubei430074, China
  • Received:2005-06-15 Revised:2005-09-21 Online:2005-04-20 Published:2005-04-20

摘要:

为深入研究碳酸盐岩中的压溶作用,加深对压溶作用的认识和理解,以常见的缝合线构造为例,结合前人的研究成果和现代科技手段对湖北大冶铁山地区的缝合线构造进行了全面深入的研究,得到以下研究成果:丰富了缝合线类型;结合计算机技术获得了缝合线的三维形态;总结了缝合线形成中的一些主控因素;论述缝合线在应力分析、应变测量等传统领域及在能源资源等新领域的应用;对缝合线研究中存在的问题及分歧进行了评述并指出今后几年的研究重点。认为缝合线构造其实是一种不规则的压溶曲面;缝合线的形成是各种主控因素相互间复杂作用的结果;有关各主控因素的作用地位和特点方面的研究结果又可以为缝合线构造的实际应用提供理论依据。

关键词: 缝合线, 分类, 形成机制, 铁山, 湖北

Abstract:

Stylolite, as a common pressure solution structure, develops extensively in carbonate, which is of great significance in stress analysis, finite strain determination and research on oil-gas resources. Based on field observation and indoor analysis about the stylolites in Tieshan, Daye, Hubei Province, this paper raises some fresh understandings about the stylolite as follows: (1) Stylolites are classified into wave-shaped, sawtooth-shaped, city-wall-shaped and thin-column shaped stylolites. (2)Two kinds of composite stylolites are identified in the area and named after parasitic composite stylolites and transitional composite stylolites. (3)Stylolite, in fact, is an irregular pressure solution surface. According to the data collected from field outcrops, we gain the 3D-morphology of a stylolite using computer technology. (4)Stylolite formation process is related to rock composition, stresses, fluid chemicals etc., which provides theoretical basis to practical application. (5) It is considered that the stylolite will be more useful in the assessment of oil-gas resources.

Key words: stylolite, classification, formation mechanism, Tieshan, Hubei Province

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