摘要
ESR年代学研究和山原红壤发育年龄测算表明 ,云南小江流域第四纪洪积—泥石流沉积自早更新世中期出现以来 ,洪积—泥石流沉积就一直是该流域海拔 2 2 0 0m以下河谷地带的主要表层地质过程 ,其沉积地层可分别归属于早更新世中、晚期 ,中、晚更新世和全更新世 .
The research in ESR chronology and the result of measurement about developing age of red soil indicate that diluvium depositional sub facies of Debris flow in Quaternary has always been a main geological process since Old Pleistocene in the valley under elevation 2 200 m in Xiaojiang drainage area in Yunnan. The deposit stratums separetely belongs to the medium term and late term of Old Pleistocene, Middle Pleistocene, Late Pleistocene.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2002年第6期974-980,共7页
Journal of Southwest China Normal University(Natural Science Edition)
基金
国家自然科学基金资助项目 (4 98710 12 ) .
关键词
第四纪
洪积-泥石流沉积
ESR测年
山原红壤发育年龄
地层划分
云南
小江流域
沉积年代
diluvium depositional sub facies of Debris flow in Quaternary
ESR
developing age of red soil
stratigraphical division
Xiaojiang drainage area Yunnan
