| 贵州安顺旧州晚二叠世龙潭期沉积特征及地质意义 |
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| 引用本文： | 王安华,牟军,黄道光,石磊.贵州安顺旧州晚二叠世龙潭期沉积特征及地质意义[J].贵州地质,2010,27(4):241-244,290. |
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| 作者姓名： | 王安华 牟军 黄道光 石磊 |
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| 作者单位： | 贵州省地质调查院,贵州贵阳550005 |
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| 摘 要： | 本文通过安顺旧州地区地面调查及钻孔岩性分析研究,从岩性组合、沉积构造、沉积相特征、沉积模式分析,进一步说明该区处于晚二叠世三岔河地区龙潭相区与吴家坪相区的相变位置,属于潮坪—泻湖相至半局限台地相过渡带,是具有特殊组成含义的"龙潭组"。由此推断晚二叠世龙潭期相变线(带)应为由北(遵义)向南延伸至贵阳后经林歹—平坝—天龙—旧州(研究区)一线向南西延伸到兴义,北西为龙潭相区,南东为吴家坪相区。
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| 关 键 词： | 龙潭期 沉积相特征 地质意义 安顺旧州 贵州 |
Sedimentary Characteristic and Geologic Significance of Longtan Period,Late Permian Epoch in Jiuzhou of Anshun,Guizhou |
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| WANG An-hua,MOU Jun,HUANG Dao-guang,SHI Lei.Sedimentary Characteristic and Geologic Significance of Longtan Period,Late Permian Epoch in Jiuzhou of Anshun,Guizhou[J].Guizhou Geology,2010,27(4):241-244,290. |
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| Authors: | WANG An-hua MOU Jun HUANG Dao-guang SHI Lei |
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| Institution: | (Guizhou Academy of Geologic Survey,Guiyang 550005,Guizhou,China) |
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| Abstract: | In this paper,by study the surface investigation and drill lithology,according to the lithology association,sedimentary structure,sedimentary facies feature and sedimentary mode,it infers that this area is the facies change position of Longtan formation facies area in Sanchahe area of late permian epoch and Wujiaping facies area,belong to transition zone of Chaoping-Xiehu facies and semi-restricted platform facies,is the ＇Longatn formation＇ of special composite meaning.So,it can infers the facies change zone of Longtan formation,Late Permian epoch should spread form Zunyi to Guiyang,then spread to Xingyi from Lindai―Pingba―Tianlong―Jiuzhou line,the northwest is Longtan facies area,southeast is Wujiaping faices area. |
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| Keywords: | Longtan period Sedimentary facies character geologic significance Jiuzhou Anshun Guizhou |
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