龙门山印支运动主幂辨析——再论安县构造运动  

Recognition on the Main Episode of Indo - China Movement in the Longmen Mountains ——A Re-review on the Anxian Tectonic Movement

作　　者：王金琪[1] 

机构地区：[1]中石化新星西南石油局,四川成都610081

出　　处：《四川地质学报》2003年第2期65-69,共5页Acta Geologica Sichuan

摘　　要：根据龙门山前山保存大量地层不整合及盆内深井钻探和地震剖面等资料,进行盘—山耦合研究,注意到该区构造、沉积发展程序清晰,再次确认在三叠系上统须家河组四段沉积之前,本区有一次最强烈的造山运动(安县构造运动)。流行的“多期论”、“递变论”长期冲淡、淹没这一极其重要的地质事件,应正本清源。Unconformity in front of the Longmen Mountains, deep well records and seismic data in the basin, clear tectonic and sedimentary sequences and basin - mountain coupling study confirm that a strong Indo - China oro-genic movement named after Anxian tectonic movement had happened before the fourth Member of the Upper Triassic Xujiahe Formation was deposited. For a long time, this extremely important geological event has been weakened by 'theory of multiphase tectonic activity' and 'progressive process'.

关 键 词：龙门山印支运动 安县构造运动 “多期论” “递变论” 地质事件 地震剖面 盆-山耦合 造山作用 

分 类 号：P542.2[天文地球—构造地质学]