Analysis of the Ordovician Carbonate Hydrothermal Process in Tadong Area, Xinjiang, China

Hydrothermal activity played an important part in the formation of the Ordovician dolostone reservoirs in Tadong area (eastern Tarim Basin). By applying the technologies of thin rock section microscopic identification, cathodoluminescence analysis, carbon and oxygen isotope analysis, trace element,...

Full description

Saved in:
Bibliographic Details
Published inEarth sciences research journal Vol. 23; no. 2; pp. 127 - 132
Main Authors Tan, Wancang, Meng, Yuanlin, Feng, Zihui, Meng, Qi'an, Li, Qiang, Wang, Xiandong, Li, Guorong, Li, Yaguang
Format Journal Article
LanguageEnglish
Published Universidad Nacional de Colombia 01.06.2019
Subjects
carbonate
GEOSCIENCES, MULTIDISCIPLINARY
hydrothermal dolomite
hydrothermal process
tadong area
tarim basin
Tadong area
dolomita hidrotermica
área de Tadong
carbonato
hydrothermal process
hydrothermal dolomite
Tarim basin
Cuenca del Tarim
carbonate
proceso hidrotermal
Online AccessGet full text

Cover

More Information
Summary:Hydrothermal activity played an important part in the formation of the Ordovician dolostone reservoirs in Tadong area (eastern Tarim Basin). By applying the technologies of thin rock section microscopic identification, cathodoluminescence analysis, carbon and oxygen isotope analysis, trace element, rare earth element analysis, among others, the mineralogical characteristics and geochemical characteristics of the hydrothermal process are studied. It can have seen that the Ordovician hydrothermal process has represented by dolomite in various forms in the aspect of petrology and mineralogy. It is mainly composed of medium-megacryst crystalline dirty dolomite and powder-megacryst crystalline cleaner dolomite. The geochemical characteristics are the hydrothermal origin, medium-megacryst crystalline dirty dolomite with lower δ18O value, high Mn-Fe content, and positive Eu anomaly. The powder-megacryst crystalline has cleaner dolomite, with higher δ18O value, the Mn content low, and the negative Eu anomaly. Provide a reference for the Ordovician carbonate in Tadong area oil and gas exploration in the study.
ISSN:1794-6190
2339-3459
DOI:10.15446/esrj.v23n2.80525