作　　者： ; ; ;

机构地区： 中山大学海洋学院

出　　处： 《煤炭学报》 2013年第5期890-895,共6页

摘　　要： 通过野外地质考察,并结合区域构造演化背景分析,对芜湖地区后期构造的活动特征进行了深入剖析,把对研究区古生界地层有重要影响的后期构造划分为印支期挤压推覆构造和燕山、喜山期伸展构造,并进一步揭示了其构造迁移规律,认为芜湖地区古生界页岩气的保存受印支期逆冲推覆构造影响较小,受燕山、喜山期伸展构造影响较大,这在该区未来页岩气勘探中应引起重视。 The characteristics of late tectonic activities were studied in this paper through the field geological investigation in Wuhu area.Combining with the analysis of the regional tectonic evolution,the authors propose that the later tectonic activities which had important influence on the Paleozoic strata are divided into compressive nappe structure at Indo-China period and extensional structure at Yanshan and Himalayan period.Furthermore,the study reveals the tectonic migration regularity and that the shale gas preservation of Paleozoic strata in Wuhu area was less affected by the thrust nappe tectonics of Indo-Chinese movement,while dominated by the extension tectonics of Yanshan and Himalayan movement.This cognition about the influence of late tectonic activities should be considered in the exploration of shale gas.

关 键 词： 构造活动 古生界 页岩气 芜湖地区 下扬子地台

领　　域： [天文地球] [天文地球]