Mineralogical correlation between primary and replacement dolomites

Primary dolostones occur in the Upper Sinian Dengying Formation. Based on mineralogieal study the indicators for correlation between the primary dolomites which are not influenced by the diagenesis and the replacement dolomites of different periods have been obtained. It is shown that the primary do...

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Bibliographic Details
Published inScience China. Earth sciences Vol. 40; no. 1; pp. 91 - 98
Main Author 黄志诚 杨守业 陈智娜
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Nature B.V 01.02.1997
Subjects
Chemical composition
China
Correlation
Crystals
Dengying
Deposition
Diagenesis
Dolomite
Formation
Geochemistry
Indicators
Marine
Microstructure
Mineralogy
primary
replacement
Sea water
Seawater
China, People's Rep., Dengyang Formation
Online AccessGet full text
ISSN1674-7313
1006-9313
1869-1897
1862-2801
DOI10.1007/BF02878585

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Summary:Primary dolostones occur in the Upper Sinian Dengying Formation. Based on mineralogieal study the indicators for correlation between the primary dolomites which are not influenced by the diagenesis and the replacement dolomites of different periods have been obtained. It is shown that the primary dolomites are characterized by crystal forms precipitated and deposited directly from sea water, stable and homogeneous distribution of Mg and Ca, ideal chemical composition, regular modulated microstructures, low positive δ13C and low negative δ18O.
Bibliography:HUANG Zhicheng, YANG Shouye and CHEN Zhina(Department of Earth Sciences, Nanjing University, Nanjing 210093, China)
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ISSN:1674-7313
1006-9313
1869-1897
1862-2801
DOI:10.1007/BF02878585