典型文献
Formation of the Huajiang Grand Canyon (southwestern China)driven by the evolution of a Late Pleistocene tiankeng
文献摘要：
Collapse is a common geomorphic process in karst areas,especially on the Yunnan-Guizhou Plateau,which has a tectonic background of integral uplift.The frequent occurrence of collapse (p)rocesses in karst under-ground caves and canyons indica(e)s that collapses play an important role in the formation of canyons.Through an analysis of the morphology of a semicircular cliff in the Huajiang Grand Canyon and an investigation of sediments at the bottom of the cliff,a large-scale collapse event was found to have occurred.U-series dating of secondary cal-cium carbonate cement in the collapse breccias indicates that collapse processes occurred approximately 200 ka.According to the geomorphological evolution of the Hua-jiang Grand Canyon,the following geomorphic evolutionary process is proposed:underground river—cave hall—collapse of a tiankeng—tiankeng degradation—can-yon formation.These findings also show that the dating of collapsed breccia cement can be effectively used to determine the development times of karst canyons and the formation ages of tiankengs.
文献关键词：
中图分类号：
作者姓名：
Yunlong Fan;Andrea Columbu;Kangning Xiong;Guangjie Luo;Song Li;Xuefeng Wang;Yangyang Wu
作者机构：
Key Laboratory of Western China's Environmental Systems(Ministry of Education),College of Earth and Environmental Sciences,Lanzhou University,Lanzhou 730000,Gansu,China;Guizhou Provincial Key Laboratory of Geographic State Monitoring of Watershed,School of Geography and Resource Science,Guizhou Education University,Guiyang 550018,Guizhou,China;Department of Chemistry,Life Sciences and Environmental Sustainability,University of Parma,43124 Parma,Italy;School of Karst Science,Guizhou Normal University,Guiyang 550001,Guizhou,China;Key Laboratory of Cenozoic Geology and Environment,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China
文献出处：
引用格式：
[1]Yunlong Fan;Andrea Columbu;Kangning Xiong;Guangjie Luo;Song Li;Xuefeng Wang;Yangyang Wu-.Formation of the Huajiang Grand Canyon (southwestern China)driven by the evolution of a Late Pleistocene tiankeng)[J].地球化学学报（英文版）,2022(01):1-11
A类：
Huajiang,tiankeng,rocesses,jiang,tiankengs
B类：
Formation,Grand,Canyon,southwestern,China,driven,by,Late,Pleistocene,Collapse,common,geomorphic,karst,areas,especially,Yunnan,Guizhou,Plateau,which,has,tectonic,background,integral,uplift,frequent,occurrence,caves,canyons,that,collapses,play,important,role,formation,Through,analysis,morphology,semicircular,cliff,investigation,sediments,bottom,large,scale,event,was,found,have,occurred,series,dating,secondary,cium,carbonate,cement,breccias,indicates,processes,approximately,According,geomorphological,following,evolutionary,proposed,underground,river,hall,degradation,These,findings,also,show,collapsed,be,effectively,used,determine,development,times,ages
AB值：
0.512522
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