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2篇 您的检索式:作者名="FENGLianjun"
    题名 作者 年代 出处 被引量
1Stratigraphic architecture of the Neoproterozoic glacial rocks in the “Xiang-Qian-Gui” region of the central Yangtze Block, South China显示文摘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.ZHANGQirui CHUXuelei HeinrichBAHLBURG FENGLianjun NicoleDOBRZINSKI ZHANGTonggang 2003Progress in Natural Science:Materials International2003,13,10:22
2New evidence of deposition under cold climate for the Xieshuihe Formation of the Nanhua System in northwestern Hunan, China显示文摘Yangjiaping section is located in Hupingshan Town, Shimen County, Hunan Province. The section has been intensively studied since 1980. However, The paleoclimate during the deposition of the Xieshuihe Formation remains controversial. Based on chemical analysis of sedimentary clastic rocks of the unit, the resulting CIA (the chemical index of alteration) values of the Xieshuihe Formation are similar to those of the overlying Gucheng Formation (also called the Dongshanfeng Formation). It indicates that the sedimentary rocks of the Xieshuihe Formation and Gucheng Formation underwent the similar degrees of chemical weathering before deposition. Therefore, the Xieshnihe Formation was also likely to be deposited under a cold climatic condition, which probably belongs to a part of the record of glaciations.FENGLianjun CHUXuelei ZHANGQirui ZHANGTonggang LIHe JIANGNeng 2004Chinese Science Bulletin2004,49,13:16
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