| 川西坳陷上三叠统须家河组岩相古地理特征 |
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| 引用本文： | 何政权,刘晓博.川西坳陷上三叠统须家河组岩相古地理特征[J].中国井矿盐,2010,41(3):18-20. |
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| 作者姓名： | 何政权 刘晓博 |
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| 作者单位： | 四川盐业地质钻井大队,四川自贡,643000 |
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| 摘 要： | 通过川西坳陷40多份钻井地质报告及完井剖面图,6份大型综合研究报告及1:5万、1:20万区域地质报告及所附地表剖面,6条地震剖面综合研究,在系统分析了须家河组各段岩石类型、沉积特征及横向变化的基础上,结合测井相、地震相归纳总结出须家河组存在冲积扇、河流、三角洲、扇三角洲、湖泊湖底扇等沉积体系。须家河期龙门山前缘具有由老至新由北段而南段逐渐活跃的特征。
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| 关 键 词： | 须家河纽 轻重矿物 沉积体系 物源 岩相古地理 |
Palaeogeographic Features of Petrographical Facies of Xujiahe Formation of Upper Trias in West Sichuan Seg |
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| He Zhengquan,Liu Xiaobo.Palaeogeographic Features of Petrographical Facies of Xujiahe Formation of Upper Trias in West Sichuan Seg[J].China Well and Rock Salt,2010,41(3):18-20. |
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| Authors: | He Zhengquan Liu Xiaobo |
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| Affiliation: | He Zhengquan Liu Xiaobo (Sichuan Salt Geological Well Drilling Brigade. Zigong Sichuan 643000) |
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| Abstract: | Through the comprehensive study on more than 40 geological drilling reports and well completion sectional drawings, 6 comprehensive research reports, regional reports of 1：50,000 and 1：200,000 scales with the attached terrene section and 6 seismic sections, based on the systematic analysis on the rock types, sed- imentary features and horizontal changes of all sections of Xujiahe Formation, and in connection with logging phase and seismic phase, it is concluded that in Xujiahe Formation there exist the sedimentary system of allu- vial fan,river,delta,fan delta,lake and lake bottom fans. The front of Longmen Mountain of Xujiahe Period pos- sesses gradually active features from the old to the new and from the Northern Section to the Southern Section. |
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| Keywords: | Xujiahe Formation light and heavy minerals sedimentary system origin of species palaeo- gography of petrographical facies |
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