巴丹吉林沙漠第四纪环境研究现状  

RESEARCH PROGRESS OF QUATERNARY ENVIRONMENT OF BADAIN JARAN DESERT

作　　者：姜高磊[1] 聂振龙[1] 申建梅[1] 王哲[1] 赵华[1] 刘林敬[1] 杨劲松[1] 

机构地区：[1]中国地质科学院水文地质环境地质研究所,石家庄050061

出　　处：《海洋地质与第四纪地质》2017年第1期141-149,共9页Marine Geology & Quaternary Geology

基　　金：中国地质调查局项目(12120114018501;121201106000150093)

摘　　要：巴丹吉林沙漠第四纪环境研究一直是第四纪地质学、水文地质学研究和关注的热点。目前,巴丹吉林沙漠地区第四纪环境研究对象主要为钙质根管、钙质胶结砂、古湖沉积和少量的钻孔、剖面。已有的研究成果表明,巴丹吉林沙漠在第四纪存在4个湿润阶段:MIS13-15、MIS5、MIS3?、早中全新世。分析已有的研究成果,认为在是否存在MIS3湿润阶段、^(14)C测年精度和钙质根管、钙质胶结砂成因方面还存在不足。为了更好地解决巴丹吉林沙漠形成、湖水咸化等第四纪地质、水文地质问题,建议加强连续、长时间尺度的钻孔、湖泊沉积研究。The Badain Jaran desert, located in west China, is the third largest desert in China and the only one in which megadunes are densely distributed. There are also hundreds of lakes in the desert. Quaterna- ry environment evolution of the desert was controlled by the East Asia monsoon, which renders significant influence on the formation and evolution of the megadunes and lakes. Therefore, the Quaternary environ- ment of the desert has always been a hot topic of debate, especially among the Quaternary and Hydrology researchers. In this paper we reviewed previous studies with emphasis on the calcareous rhizolith, calcare- ous layers, and lacustrine sediments formed in humid environment. A few drilling cores and stratigraphic sections are studied. Previous studies indicate that there are four humid phases, in MIS13-15, MIS5, MIS3？ and the early and middle Holocene respectively in the Badain Jaran desert. In the existing studies, little is known about the existence of MIS3, the accuracy of 14C dating and the origin of rhizolith and cal- careous layers. For better dealing with the desert formation, lake salinization, as well as other Quantary and hydro-geological problems in the Badain Jaran Desert, we suggest strengthening continuous and long- term researches on the drill core and lacustrine deposits.

关 键 词：环境记录 研究现状 第四纪 巴丹吉林沙漠 

分 类 号：P532[天文地球—古生物学与地层学]