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古地理学报 ›› 2011, Vol. 13 ›› Issue (5): 493-500. doi: 10.7605/gdlxb.2011.05.003

• 古地理学及矿产资源 • 上一篇    下一篇

黔西织纳煤田上二叠统层序地层及聚煤作用*

郭立君1,2 洪愿进3 邵龙义2 易同生3 张卫平3 汪浩2   

  1. 1 天津市地质调查研究院，天津300191
    2 中国矿业大学(北京)地球科学与测绘工程学院，北京100083
    3 贵州煤田地质局，贵州贵阳553009
  • 收稿日期:2010-10-18 修回日期:2011-07-11 出版日期:2011-10-01 发布日期:2011-10-01
  • 通讯作者: 通讯作者简介 邵龙义，男，现为中国矿业大学（北京）地球科学与测绘工程学院教授 E-mail:276692450@qq.com
  • 作者简介:郭立君，男，1985年生，2010年毕业于中国矿业大学（北京）地球科学与测绘工程学院，并获得硕士学位，现在天津市地质调查研究院工作，主要从事地质找矿的相关工作和研究。E-mail:276692450@qq.com。
    通讯作者简介 邵龙义，男，现为中国矿业大学（北京）地球科学与测绘工程学院教授。电子邮箱：ShaoL@cumtb.edu.cn。
  • 基金资助:
    谨以此文祝贺张鹏飞教授九十华诞

    国家自然科学基金项目（编号：41030213）及国土资源大调查项目(编号：1212010633901)共同资助

Sequence stratigraphy and coal accumulation of the Upper Permian in Zhijin-Nayong Coalfield of western Guizhou Province

Guo Lijun1,2, Hong Yuanjin3, Shao Longyi2, Yi Tongsheng3, Zhang Weiping3, Wang Hao2   

  1. 1 Tianjin Institute of Geological Survey，Tianjin300191
    2 School of Geoscience and Survey Engineering，China University of Mining and Technology(Beijing)，Beijing100083
    3 Guizhou Administration of Coal Geology，Guiyang553009，Guizhou
  • Received:2010-10-18 Revised:2011-07-11 Online:2011-10-01 Published:2011-10-01
  • About author:Guo Lijun，born in 1985，has obtained his masters degree from China University of Mining and Technology(Beijing)in 2010，and now he is working in Tianjin Institute of Geological Survey.He is mainly engaged in geological prospecting.E-mail:276692450@qq.com.
    About the corresponding author Shao Longyi is a professor of School of Geoscience and Surveying Engineering，China University of Mining and Technology(Beijing).E-mail: ShaoL@cumtb.edu.cn.

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摘要： 贵州西部织(织金)纳(纳雍)煤田以发育海陆过渡相含煤岩系而成为研究西南地区晚二叠世沉积相及层序地层的理想地区。作者对该煤田上二叠统含煤岩系(龙潭组和长兴组)进行了高分辨率层序地层分析，并探讨了层序地层格架下煤层厚度的变化规律。以区域不整合面以及下切谷砂体底部冲刷面等为层序界面，结合石灰岩标志层向古陆方向延伸距离而显示的旋回性特征，将该煤田上二叠统含煤岩系划分为3个三级层序。其中层序Ⅲ中煤层最厚，层序Ⅰ中煤层最薄；同一个层序中，又以海侵体系域煤层最厚，低位体系域煤层最薄。在建立黔西织纳煤田层序地层格架的基础上，指出厚煤层主要发育于海侵体系域的三角洲平原环境。

关键词: 织纳煤田, 上二叠统, 层序地层, 聚煤作用

Abstract: The Zhijin-Nayong Coalfield in western Guizhou Province is well developed with marine-continental transitional facies and limestone markers，and thus became an ideal area for studying the Late Permian sedimentary facies and sequence stratigraphy in southwestern China.This paper has analyzed the high resolution sequence stratigraphy of the Late Permian coal seams(the Longtan and Changxing Formations).The coal-accumulating characteristics in the sequence stratigraphic framework have been discussed.Sequence boundaries represented by regional unconformity，incised valley filling sandstone base，and the palaeosol horizons have been identified.Combined with the transgression-regression cycles inferred by the distribution patterns of the limestone markers，the coal seams are subdivided into 3 third-order sequences.The total coal seams are is thicker in sequence Ⅲ and thinner in sequence Ⅱ，with the thinnest in sequence Ⅰ.Within the sequence，the thickest coals were developed in the transgressive systems tract and the thinnest coals were preserved in the lowstand systems tract.Based on reconstruction of the Late Permian sequence stratigraphic framework，we propose that the thick coal seams were developed in the delta plain environments of the transgressive systems tract.

Key words: Zhijin-Nayong Coalfield, Upper Permian, sequence stratigraphy, coal accumulation

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