| 辽东湾盆地沙河街组湖相白云岩成因研究 |
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| 引用本文： | 戴朝成,郑荣才,文华国,雷光明,谢春红.辽东湾盆地沙河街组湖相白云岩成因研究[J].成都理工大学学报(自然科学版),2008,35(2):187-193. |
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| 作者姓名： | 戴朝成 郑荣才 文华国 雷光明 谢春红 |
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| 作者单位： | 成都理工大学"油气藏地质及开发工程"国家重点实验室,成都,610059;四川石油管理局地质勘探开发研究院,重庆,401120 |
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| 基金项目： | 国家自然科学基金
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教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 辽东湾盆地古近系沙河街组产有一套分布仅限于深凹陷内的深湖相白云岩,岩性主要为泥-微晶白云岩,物质组分以铁白云石为主,在深湖相暗色泥岩中呈很薄的夹层产出,累计厚度6～10 m,产出位置明显受区域内辽中凹陷西界的北北东向基底断裂控制.通过系统的沉积学、岩石学、矿物学和地球化学特征研究,以及与酒西盆地青西坳陷下沟组热水白云岩成因特征对比,认为发育于旅大地区深凹陷内的沙河街组深湖相白云岩也属于罕见的湖相热水沉积岩.
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| 关 键 词： | 湖相白云岩 铁白云石 热水沉积 沙河街组 古近系 辽东湾盆地 |
| 文章编号： | 1671-9727(2008)02-0187-07 |
| 修稿时间： | 2007年3月5日 |
Origin of lacustrine dolomite in the Paleogene Shahejie Formation of Liaodongwan basin, China |
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| DAI Chao-cheng,ZHENG Rong-cai,WEN Hua-guo,LEI Guang-ming,XIE Chun-hong.Origin of lacustrine dolomite in the Paleogene Shahejie Formation of Liaodongwan basin, China[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2008,35(2):187-193. |
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| Authors: | DAI Chao-cheng ZHENG Rong-cai WEN Hua-guo LEI Guang-ming XIE Chun-hong |
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| Institution: | DAIChao-cheng1,ZHENGRong-cai1,WENHua-guo1,LEIGuang-ming2,XIEChun-hong2 1.State Key Laboratory of Oil , Gas Reservoir Geology , Exploitation,Chengdu University of Technology,Chengdu 610059,China,2.Research Institute of Sichuan Petroleum Administration Geological Exploration , Development,Chongqing 401120 |
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| Abstract: | The deep lacustrine facies dolomite exits in the stratum of Paleogene Shahejie Formation in Liaodongwan basin,its distribution is only in the deep sag;the rock characteristic is dolomicrite mainly,and the matter composition gives first place to ankerite.It appears as very infertile interlayers in black mudstone of deep lacustrine facies,and the accumulative thickness is about 6 ~ 10 m.The occurrence location is obviously controlled by the western fracture of Liaozhong sag.Through the systematic study on the... |
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| Keywords: | lacustrine facies dolomite ankerite hydrothermal sediment Shahejie Formation Paleogene System Liaodongwan basin |
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