首页> 中文期刊> 《中国煤炭地质 》 >湖北省中、晚二叠世煤系沉积期地质构造特征及其控煤作用

湖北省中、晚二叠世煤系沉积期地质构造特征及其控煤作用

             

摘要

The paleotectonic framework during the Hubei Province mid -late Permian coal measures depositional stage is "a depression between two culminations", I. E. The northwest trending Qinlin-Huaihe megaculmination to the north, the EW Jiangnan megaculmination to the south, and the near EW large undulating down-warped basin-Hubei depression between. The formation and spreading in the mass of the coal accumulation basin are controlled by the two megaculminations both sides, During the mid-late Permian, the depression was stood in an epicontinental sea environment, and accepted marine-terrestrial facies coal-bearing strata deposition, the deposition and distribution were controlled by the basin, thick coal seams and coal-rich zone present northwestern orientation spreading, coincided with the secondary depressions in the coal accumulation basin.%湖北省中、晚二叠世煤系沉积期的古构造格架是“两隆夹一坳”,北部为北西向秦淮巨型隆起、南部为东西向江南巨型隆起,两隆起之间为近东西向的大型波状坳陷盆地—湖北坳陷,该聚煤盆地的形成及总体展布受南北两个巨型隆起带控制,在中、晚二叠世湖北坳陷处于陆表海环境,接受了海陆交互相的含煤岩系沉积,煤系沉积与分布受盆地的控制,厚煤层和富煤带主要呈北西向展布,与聚煤盆地内次级坳陷相吻合.

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