| 尹犁盆地水西沟群冲积扇-扇三角洲沉积体系研究 |
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| 引用本文： | 李盛富,颜启明,王新宇,张中旺,齐军让.尹犁盆地水西沟群冲积扇-扇三角洲沉积体系研究[J].新疆地质,2006,24(3):297-304. |
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| 作者姓名： | 李盛富 颜启明 王新宇 张中旺 齐军让 |
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| 作者单位： | [1]核工业部216地质大队,新疆乌鲁木齐830011 [2]中国地质大学,湖北武汉430074 [3]陕西水利勘查设计院,陕西西安710000 |
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| 摘 要： | 以沉积岩石学、陆相沉积盆地分析和现代水成铀矿理论为指导，运用详实的地质资料和前人的研究成果，系统研究水西沟群沉积物的微观和宏观地质信息，恢复沉积时期的地貌特征和沉积过程，重新展示碎屑物的形成过程及其演化．将水西沟群的岩石及沉积构造特征与现有资料对比，初步认为中下侏罗统水西沟群是冲积体系的产物，即冲积扇-扇三角洲沉积体系综合作用的产物．每一种沉积体系均已细分到亚相和微相，冲积扇体系有扇根、扇中、扇端3个亚相和河床充填、漫流沉积、辫状河道、沼泽沉积等微相，扇三角洲沉积体系有扇三角洲平原、扇三角洲前缘、前扇三角洲3个亚相和辫状河道、河漫沼泽、河口坝、远砂坝等微相。
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| 关 键 词： | 伊犁盆地南缘 水西沟群 冲积扇 扇三角洲 |
| 文章编号： | 1000-8845(2006)03-297-08 |
| 收稿时间： | 12 5 2005 12:00AM |
| 修稿时间： | 12 19 2005 12:00AM |
RESEARCH ON THE DEPOSITIONAL SYSTEM OF ALLUVIAL FANS AND FAN-DELTAS OF THE SHUIXIGOU GROUP IN THE SOUTH YILI BASIN, XINJIANG |
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| LI Sheng-fu, YAN Qi-ming, WANG Xin-yu, ZHANG Zhong-wang, QI Jun-rang.RESEARCH ON THE DEPOSITIONAL SYSTEM OF ALLUVIAL FANS AND FAN-DELTAS OF THE SHUIXIGOU GROUP IN THE SOUTH YILI BASIN, XINJIANG[J].Xinjiang Geology,2006,24(3):297-304. |
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| Authors: | LI Sheng-fu YAN Qi-ming WANG Xin-yu ZHANG Zhong-wang QI Jun-rang |
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| Abstract: | Based on the theory of sedimentary, sedimentary of continent facies, modern theory of uranium deposits, the sediment character of the Shuixigou group as well as ancient landforms and sediment processes were studied. The Shuixigou group was deposited as a result of an alluvial system. Lower Shuixigou qroup is a result of the alluvial fan system, while middle and upper Shuixigou group is a result of the fan-delta system. Every depositional system is divided into sub-facies and micro-facies. There are three sub-facies (fan-root, fan-middle, fan- terminal) and four micro-facies (channel fills, sheet-flood, braid river bed, marsh and so on ) in the alluvial fan system. In other system, there are corresponding sub-facies (fan-delta plain, its former edge and former fan-delta) and micro-facies (braid riverbed, marsh, bayou bars and extensive sand bars). |
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| Keywords: | South Yili Basin Shuixigou Group alluvial fan fan-delta |
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