| 塔中上奥陶统方解石胶结物类型及其形成环境 |
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| 引用本文： | 王振宇,;吴丽,;张云峰,;韩剑发,;张丽娟.塔中上奥陶统方解石胶结物类型及其形成环境[J].西安地质学院学报,2009(3):265-271. |
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| 作者姓名： | 王振宇 ;吴丽 ;张云峰 ;韩剑发 ;张丽娟 |
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| 作者单位： | [1]西南石油大学资源与环境学院,四川成都610500; [2]中国石油天然气集团公司塔里木油田公司勘探开发研究院,新疆库尔勒841000 |
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| 基金项目： | 四川省重点学科建设项目（SZD0414） |
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| 摘 要： | 通过对塔中地区上奥陶统数百块碳酸盐岩薄片和抛光面中各种方解石胶结物特征和成因的观察,并结合微量元素和碳、氧同位素分析,共识别出11种胶结物类型。详细描述了各胶结物的特征,并确定了胶结物的分布和形成次序。在此基础上对该区碳酸盐岩方解石胶结物形成环境进行了分析,共划分出海底成岩环境、大气水成岩环境和埋藏成岩环境。从而为该区孔隙演化史的建立和有利勘探目标预测提供了有力的依据。
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| 关 键 词： | 方解石胶结物 成岩环境 碳酸盐岩 塔中地区 |
Study on Category and Forming Environment of Upper Ordovician Carbonate Rock Calcite Cement in Tazhong District |
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| Institution: | WANG Zhen-yu , WU Li, ZHANG Yun-feng , HAN Jian-fa , ZHANG Li-juan( 1. School of Resources and Environment, Southwest Petroleum University, Chengdu 610500, Sichuan, China 2. Institute of Exploration and Development, Tarim Oil field Company, China National Petroleum Corporation, Kuerle 841000, Xinjiang, China) |
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| 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. |
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| Keywords: | calcite cement diagenetic environment carbonate rock Tazhong area |
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