| 川东北飞仙关组白云岩的主要类型、地球化学特征和白云化机制 |
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| 引用本文： | 黄思静,佟宏鹏,刘丽红,胡作维,张雪花,郇金来,黄可可.川东北飞仙关组白云岩的主要类型、地球化学特征和白云化机制[J].岩石学报,2009,25(10):2363-2372. |
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| 作者姓名： | 黄思静 佟宏鹏 刘丽红 胡作维 张雪花 郇金来 黄可可 |
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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,沉积地质研究院,成都 610059 |
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| 基金项目： | 国家自然科学基金项目( |
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| 摘 要： | 四川盆地东北部蕴藏有丰富的烃类资源,三叠系飞仙关组的白云岩是最主要的储层和产层,这使得飞仙关组白云岩成为人们近年来高度关注的对象.按照结构,我们可以将飞仙关组白云岩分为三种端元类型:微晶白云岩、具原始结构的粒屑白云岩和结晶白云岩,在一个向上变浅的剖面旋回中,这三种白云岩分别位于旋回的顶部、上部和中下部.微晶白云岩和具原始结构的粒屑白云岩具有较高的锰含量和较低的包裹体均一化温度,白云化流体的δ~(18O) 值(从白云石的包裹体均一化温度和δ~(18O) 值反演,以下同)介于大气水和海水之间,反映这类白云岩形成于有大气水参与的相对开放的沉积-成岩环境中,蒸发泵作用(对于微晶白云岩)和混合水作用(对于具原始结构的粒屑白云岩)可能是其主要的形成机制;结晶白云岩(表现为好储层)具有很低的锰含量和较高的包裹体均一化温度,白云化流体的δ~(18O) 值显著高于早三叠世海水,表明这类白云岩形成于相对封闭的埋藏成岩环境,白云化流体具较高的温度和盐度,但到目前为止,还没有一个已有模式可以较好地解释这类白云岩的成因.
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| 关 键 词： | 白云岩储层 地球化学 白云化流体 川东北飞仙关组 |
Petrography, geochemistry and dolomitization mechanisms of Feixianguan dolomites in Triassic, NE Sichuan, China |
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| HUANG SiJing,TONG HongPeng,LIU LiHong,HU ZuoWei,ZHANG XueHu,HUAN JinLai and HUANG KeKe.Petrography, geochemistry and dolomitization mechanisms of Feixianguan dolomites in Triassic, NE Sichuan, China[J].Acta Petrologica Sinica,2009,25(10):2363-2372. |
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| Authors: | HUANG SiJing TONG HongPeng LIU LiHong HU ZuoWei ZHANG XueHu HUAN JinLai and HUANG KeKe |
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| Institution: | State Key Laboratory of Oil/Gas Reservoir Geology and Exploitation, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China;State Key Laboratory of Oil/Gas Reservoir Geology and Exploitation, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China;State Key Laboratory of Oil/Gas Reservoir Geology and Exploitation, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China;State Key Laboratory of Oil/Gas Reservoir Geology and Exploitation, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China;State Key Laboratory of Oil/Gas Reservoir Geology and Exploitation, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China;State Key Laboratory of Oil/Gas Reservoir Geology and Exploitation, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China;State Key Laboratory of Oil/Gas Reservoir Geology and Exploitation, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China |
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| Abstract: | |
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| Keywords: | Dolomite reservoir Geochemisry Dolomitization fluid Feixianguan Formation of Triassic NE Sichuan |
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