新一轮地质调查中复理石区工作应注意的重要问题  

PROBLEMS NEED TO BE NOTED IN THE NEW ROUND OF GEOLOGICAL SURVEY IN THE FLYSCH PROVINCE

作　　者：戴宗明 

机构地区：[1]四川地矿局区调队,双流华阳610213

出　　处：《成都理工大学学报（自然科学版）》2000年第S1期223-227,共5页Journal of Chengdu University of Technology: Science & Technology Edition

摘　　要：造山带复理石区以发育大量的深海、次深海浊积扇为特征 ,由于这些复理石盆地的多向物源性 ,从而在盆地中形成了大量不同时期、不同源区、不同供应水道、不同规模的海底扇复杂叠覆现象 ,加之海底扇本身的发育特征 ,都要求在造山带复理石区的新一轮地质大调查中 ,运用海底扇法填图来解决过去区调工作中所不能解决的问题。“九五”期间四川西康群区区调的实践也证明 ,在造山带复理石区填图中 ,海底扇法是一种比层序地层学更可行、更有效、更直观的方法。Flysch province in orogenic belt was characterized by the occurrence of abundant abyss and bathyal turbidite fans. Owing to the multidirectional provenance, complicated superposition of submarine fans with different age, scale, provenance and supply channel occurred in the basin. Therefore, method of submarine fan should be utilized in the new round of geological investigation so as to resolve the problems encountered in the previous geological survey. The practical application of this method in the orogenic belt in the western Sichuan has been proved to be feasible and effective.

关 键 词：复理石 海底扇 松潘甘孜造山带 物源 

分 类 号：P622[天文地球—地质矿产勘探]