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Study on Category and Forming Environment of Upper Ordovician Carbonate Rock Calcite Cement in Tazhong District(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2009年第03期
Page:
265-271
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Study on Category and Forming Environment of Upper Ordovician Carbonate Rock Calcite Cement in Tazhong District
Author(s):
WANG Zhen-yu1;  WU Li1;  ZHANG Yun-feng1;  HAN Jian-fa2;  ZHANG Li-juan2
(1.School of Resources and Environment,Southwest Petroleum University, Chengdu 610500, Sichuan, China; 2.Institute of Exploration and Development, Tarim Oilfield Company, China National Petroleum Corporation, Kuerle 841000, Xinjiang, China)
Keywords:
calcite cement;  diagenetic environment;  carbonate rock;  Tazhong area
PACS:
TE122
DOI:
-
Abstract:
Through comprehensive research on the characteristic of calcite cement and its genesis by hundreds of thin slice and polished surface of carbonate rocks of Upper Ordovician, together with the analysis of the microelement and C and O isotopes, eleven types of calcite cementation are identified, the feature of cement is described, and the distribution and sequence of cement is determine. On the basis of above research, the forming environment of calcite cement of carbonate rocks in Tazhong is analyzed, and it is divided into submarine, meteoric freshwater and burial diagenetic environment. The conclusion provides a powerful foundation for the establishment of pore evolution history and the forecast of favorable exploration target.

References:

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Last Update: 2009-09-20