鄂拉山地区中下三叠统洪水川组沉积体系分析  

Sedimentary System of the Middle and Lower Triassic Hongshuichuan Formation in the Elashan Region

作　　者：刘图杰 葸得华 雍化常 杨怀超[1] 

机构地区：[1]四川省核工业地质局二八一大队,四川西昌615000

出　　处：《四川地质学报》2017年第3期369-374,共6页Acta Geologica Sichuan

摘　　要：通过兴海五幅区域地质矿产调查工作,查明区内中-下三叠统洪水川组(T_(1-2)h)可分为三段,分别为:砾岩段(T_(1-2)h1)、砂岩段(T_(1-2)h^2)和火山岩段(T_(1-2)h^3)。依据组合、成分、典型沉积结构构造等特征,将洪水川组沉积体系自下而上划分为扇三角洲沉积体系、浅海-半深海浊流沉积体系、半深海-深海沉积体系。The regional geological survey indicates that Middle-Lower Triassic Hongshuichuan Formation（T_（1-2）h） may be divided into conglomerate member（T_（1-2）h^1）, sandstone member（T_（1-2）h^2） and volcanic rock member（T_（1-2）h^3）. According to composition, association and sedimentary structure, the Hongshuichuan Formation may be divided into 3 sedimentary systems such as fan delta sedimentary system, shallow water-bathyal turbidity current sedimentary system and bathyal-deep sea sedimentary system.

关 键 词：洪水川组 扇三角洲 沉积体系 鄂拉山 

分 类 号：P534.4[天文地球—古生物学与地层学]