Stratigraphic architecture of the Neoproterozoic glacial rocks in the “Xiang-Qian-Gui” region of the central Yangtze Block, South China  

作　　者：ZHANGQirui CHUXuelei HeinrichBAHLBURG FENGLianjun NicoleDOBRZINSKI ZHANGTonggang 

机构地区：[1]InstituteofGeologyandGeophysics,ChineseAcademyofSciences,Beijing100029,China [2]Geologisch-PalaeontologischesInstitut,WestfaelischeWilhelms-Universitaet,Corrensstrasse24,D-48149Muenster,Germany

出　　处：《Progress in Natural Science:Materials International》2003年第10期783-787,共5页自然科学进展·国际材料（英文版）

基　　金：SupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .40 172 0 15 )andtheChineseAcademyofSciences (GrantNo .KZCX2 116)

摘　　要：The Yangtze Block in South China is one of the important regions where Neoproterozoic glacial rocks are well developed and studied. However, the classification and correlation of the Neoproterozoic glacial sequences in the central Yangtze Block still remain controversial among Chinese geologists. The original Sinian sections around the Yangtze Gorges Region became an official standard for classification and correlation since the 1950s. Subsequent regional geologic studies, however, resulted in different classification and correlation, because of its incompleteness. We select one of the complete sections in the bordering areas of Xiang (Hunan), Qian (Guizhou) and Gui (Guangxi), as a standard of classification and correlation. The temporal and spatial distribution, i.e. the stratigraphic architecture, of the glacial rocks in the central Yangtze Block is suggested. Our results indicate that the glacial sequence on the Yangtze Block was deposited during the Nantuo Ice age, the Datangpo Interglacial age and Jiangkou Ice age, in descending order.The Yangtze Block in South China is one of the important regions where Neoproterozoic glacial rocks are well developed and studied. However, the classification and correlation of the Neoproterozoic glacial sequences in the central Yangtze Block still remain controversial among Chinese geologists. The original Sinian sections around the Yangtze Gorges Region became an official standard for classification and correlation since the 1950s. Subsequent regional geologic studies, however, resulted in different classification and correlation, because of its incompleteness. We select one of the complete sections in the bordering areas of Xiang (Hunan), Qian (Guizhou) and Gui (Guangxi), as a standard of classification and correlation. The temporal and spatial distribution, i.e. the stratigraphic architecture, of the glacial rocks in the central Yangtze Block is suggested. Our results indicate that the glacial sequence on the Yangtze Block was deposited during the Nantuo Ice age, the Datangpo Interglacial age and Jiangkou Ice age, in descending order.

关 键 词：Neoproterozoic glacial rocks central Yangtze Block stratigraphic architecture classification and correlation stratigraphic break. 

分 类 号：P534.3[天文地球—古生物学与地层学]