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平朔露天矿太原组11^#和9^#煤层的沉积环境分析

程东 沈芳 柴东浩 程保洲   

  1. [1]山西大学师范学院地理系 [2]山西省地质科学研究所
  • 收稿日期:1998-12-20 修回日期:1998-12-20 出版日期:1998-12-20 发布日期:1998-12-20

SEDIM ENTARY ENVIRONM ENT OF 11# AND 9# COALS OF TAIYUAN FORMATION AT PINGSUO OPEN-PIT MINE

Cheng Dong1, Shen Fang1, Chai Dong-hao2, Cheng Bao-zhou2   

  1. 1. Geographic Department, Shanxi Teach’s College Shanxi University; 2. Shanxi Institute of Geological Sciences, Taiyuan 030012
  • Received:1998-12-20 Revised:1998-12-20 Online:1998-12-20 Published:1998-12-20

摘要: 平塑露天矿的露采煤层,即11^#和9^#煤层是上石炭统太原组Ⅱ-Ⅲ层段扇三角洲-泻湖及扇三角洲-潮坪环境的产物。厚4m的11^#煤层形成于扇三角洲-潮坪环境中,厚15m的9^#煤层形成了扇三角洲平原,扇三角洲前缘(北西部)以及覆水较深的泻湖(中南部)环境中。

Abstract: The 11# and 9# coals, exposed and mined at Pingsuo open-pit mine, occur in Ⅱ-Ⅲ intervals of the Taiyuan Formation, Upper Carboniferous. They were accumulated in environment of fan delta-1agoon and fan delta-tidal flat. The 4m thick 11# coal was formed in an environment of fan delta-tidal flat and the 15m thick 9# coal in all environment of fan deltaic plain, fan delta front and lagoon revering with deep water.