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Characteristics of Cenozoic lacustrine dolomite in central Tibetan Plateau and its environmental implications

青藏高原中部新生代湖泊发育普遍.对该时期形成的湖相白云岩特征的研究对于了解当时及此后青藏高原的环境演化进程具有重要意义.笔者主要利用XRD、SEM及薄片观察方法对沱沱河地区两个剖面的白云石特征进行了研究,分析了白云石有序度、晶形及白云石中碳酸钙摩尔浓度三者之间的关系,并根据白云石的矿物学和岩石学特征以及野外宏观岩层组合特征对白云岩的成因作出了判断,进而联系同一时期高原内部以及周边地区的构造运动导致的环境变化,对剖面所代表地区沉积时的环境变化作了解释.;Lakes developed widely during Cenozoic era in central Tibetan Plateau. R...

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Izdano u:Journal of Lake Sciences
Glavni autor: LI Jun-peng
Daljnji autori: Haisheng Yi, Lin Jin-hui, Zhou Kenken, HUANG Hua-gu
Format: Članak
Jezik:engleski
Izdano: Science Press 2008
Teme:
Geological formations and processes
Geochemistry and Elemental Analysis
Geology and Paleoclimatology Research
Tibetan Plateau
dolomite genesis
paleoenvironmental evolution
crustal deformation
Online pristup:https://doi.org/10.18307/2008.0510
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https://doi.org/10.18307/2008.0510

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