| 扬子地块北缘晚二叠世长兴期岩相古地理 |
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| 引用本文： | 牟传龙,王瑞华,谭钦银,付建元,程锦翔,王正和.扬子地块北缘晚二叠世长兴期岩相古地理[J].地学前缘,2011,18(4):1-8. |
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| 作者姓名： | 牟传龙 王瑞华 谭钦银 付建元 程锦翔 王正和 |
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| 作者单位： | 1. 成都地质矿产研究所,四川 成都,610081
2. 川庆钻探工程有限公司 地球物理勘探公司,四川 成都,610213 |
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| 基金项目： | 国家重大科技专项，中国地质调查局项目，中国石化南方勘探分公司 |
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| 摘 要： | 扬子地块北缘与秦岭接壤,晚二叠世长兴期岩石地层单元为长兴组和大隆组.长兴组为一套碳酸盐岩沉积.沉积单元包括台地相、台地边缘礁滩相以及台地边缘斜坡相等；而大隆组则主要为一套灰黑至黑色薄层硅质岩、炭质页岩夹薄层泥晶灰岩,为一套较深水盆地沉积的产物.研究结果表明,这一深水盆地环境大致从西边的广元开始,向东经旺苍、南江与鄂西地...
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| 关 键 词： | 扬子北缘 长兴期 岩相古地理 台地边缘礁潍 储层 |
The lithofacies paleography of the northern margin of Yangtze Block in Changxing Phase of Late Permian |
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| Mou Chuanlong,Wang Ruihua,Tan Qinyin,Fu Jianyuan,Cheng Jinxiang,Wang Zhenghe.The lithofacies paleography of the northern margin of Yangtze Block in Changxing Phase of Late Permian[J].Earth Science Frontiers,2011,18(4):1-8. |
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| Authors: | Mou Chuanlong Wang Ruihua Tan Qinyin Fu Jianyuan Cheng Jinxiang Wang Zhenghe |
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| Institution: | 1.Chengdu Institute of Geology and Mineral Resource,Chengdu 600081,China2.Geophysical Prospecting Company of Chuanqing Drilling Engineering Company,Chengdu 610213,China |
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| Abstract: | The northern margin of Yangtze Block borders on Qinling orogen.In Changxing Phase,its rock-stratigraphic unit includes Changxing Formation and Dalong Formation.Changxing Formation is composed of carbonate sediment and its main sedimentary facies include platform facies,platform edge reef and bank facies,and platform edge's slope facies.But Dalong Formation is mainly composed of a suite of gray/black thin bedded silica rock,bass and a little interbed of cryptite.All these are deposited in somewhat deeper basin.The research result shows that the range of deeper basin is from west to east,i.e.,from the western Guangyuan to Wangchang to Nanjiang to the western Hubei province.And the deeper basin separated the Yangtze Block from the North China Block.This kind of pattern implies the direction of exploration and may indicate that the Yangtze Block and the North China Block have already joined as a whole land block before the Changxing Phase. |
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| Keywords: | north margin of Yangtze Block Changxing Phase lithofacies paleography platform edge reef/bank facies reservoir |
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