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Identificating of structure and its dynamics control of Huainan coalfield
Author(s): 
Pages: 11-15
Year: Issue:  1
Journal: COAL GEOLOGY & EXPLORATION

Keyword:  前陆变形带推覆构造动力学淮南煤田;
Abstract: 淮南煤田的含煤地层为石炭系和二叠系,主要构造格架为一近东西向展布的"对冲式断-褶构造带".该带可分为3个次级构造带:南部"八公山-舜耕山构造带",为一由南向北逆冲的推覆构造带;北部"明龙山-上窑构造带",是位于淮南煤田北缘由北向南逆冲的推覆构造带;中间为"淮南扇形复向斜带",构成淮南煤田的主体.淮南对冲式断-褶构造带是印支期华北板块与扬子板块碰撞造山的产物,是大别山北侧薄皮推覆构造前锋带和外缘带的主体,主要沿结晶基底与盖层的接触界面滑动.淮南煤田发育在"淮南扇形复向斜带"中,南北向的强烈挤压、对冲使得位于其中的含煤地层遭受错断、牵引而弯曲,直至倒转,严格控制着淮南煤田的构造格架和几何学形态.
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