地质科技情报2017，Vol.36Issue(5)：14-21,8.DOI:10.19509/j.cnki.dzkq.2017.0503
毛乌素沙地晚第四纪地层特征与沙漠化研究综述
Review of Late Quaternary Strata Characteristics and Desertification on Mu Su Dune Field in North China
摘要
Abstract
A variety of sedimentary sequences Mu Su dune field have been developed since Late Quaternary,and recorded the paleoclimate changes in the past thousands of years.The development of sedimentary strata in Mu Su dune field has prominent features of transition between desert and loess in North China.The most typical strta are situated in the desert-loess transition zone along Shenmu,Yulin,Hengshan,Jingbian and Dingbian,mainly including two types of aeolian depositions and fluvio-lacustrine deposits,in which the palaeo-eolian sand shows typical strata characteristics.With the progerss in stratigraphic record and accurate dating technology,and the comprehensive research combined with historical geography,environmental archaeology and remote sensing,the research precision on Mu Su desert evolution continues to improve.The advance and retreat of Mu Su dune field experienced several changes of the fix and activation of sand dunes,which were appropriate to the multi-cycle changes of cold-warm periods in in different temporal and spatial scales.The previous researches on Mu Us desertification in the use of indicators often adopted directly the environmental proxies suited for the loess area,so it is necessary to establish a suitable environmental proxy indicators for the desert loess transition zone,which should be combined with the climatic-environmental physical,element geochemistry and biological indicators.The lake sediments with fast deposition rate and less human disturbance in Mu Su dune field have significant advantages for enhancing the resolution of sediments and restoring short-time scale environmental change process.关键词
毛乌素沙地/沉积地层/沙漠化/晚第四纪Key words
Mu Su dune field/sedimentary strata/desertification/Late Quaternary分类
地质学引用本文复制引用
楚纯洁,赵景波,吴楠楠,周金风..毛乌素沙地晚第四纪地层特征与沙漠化研究综述[J].地质科技情报,2017,36(5):14-21,8.基金项目
国家自然科学基金国际合作项目(41210002) （41210002）
平顶山学院高层次人才资助项目(PXY-BSQD-2017004) （PXY-BSQD-2017004）
河南省高等学校青年骨干教师资助计划(2014GGJS-141) （2014GGJS-141）
