渣渡矿区滑脱构造特征

渣渡矿区滑脱构造比较发育,既有推覆构造,也有滑覆构造;有顺层,也有切层;并具有多期次及先推后滑等特点。由于燕山晚期岩浆岩的侵入及锡矿山背斜的形成,在背斜两翼产生重力滑动构造。其前缘挤压区均追踪利用了金盘仑断层和集云断层的南段,使本区南部构造复杂化,而北部构造仍保持较简单的格局,因而造成了本区南北构造分异的现象。 

CHARACTER OF DECOLLEMENT STRUCTURE IN ZHADU COAL MINE AREA

Decollement structures in Zhadu coal mine are upgrowth,such as nappe,gravitation gliding,bedding and insequent tectonic,which has polyphase and postnappe sliding characteristics.Because of the magmatite intrusion in Late Yanshan period and the formation of Xikuangshan anticline,gravitation gliding structures are developed at the both wings of the anticline.The structures in compressed front track Jinpanlun fault and south zone of Jiyun fault,which makes a complicated structures in south zone,but the structures in north zone remain simpler.So it causes different structure phenomenon in its south and north zone.