| 内蒙古西乌旗下二叠统寿山沟组海底扇的发现及意义 |
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| 引用本文： | 公繁浩,黄欣,郑月娟,陈树旺.内蒙古西乌旗下二叠统寿山沟组海底扇的发现及意义[J].地质与资源,2013,22(6):478-483. |
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| 作者姓名： | 公繁浩 黄欣 郑月娟 陈树旺 |
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| 作者单位： | 沈阳地质矿产研究所/中国地质调查局 沈阳地质调查中心, 辽宁 沈阳 110034 |
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| 基金项目： | 中国地质调查局项目“松辽外围中新生代盆地群油气地质综合调查”（1212010783001）、“东北地区晚古代地层划分对比及油气资源前景研究”（1212011121086）资助. |
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| 摘 要： | 西乌珠穆沁旗地区下二叠统寿山沟组沉积环境的认识尚缺乏确凿证据.对塔宾庙林场剖面寿山沟组的研究认为是一套海相碎屑岩沉积,岩石类型以长石岩屑砂岩为主,发育粒序层理和平行层理,属于鲍马序列中的A和B段,并伴有Zoophycos相遗迹化石组合,属于海底扇沉积.根据岩石类型、砂岩的单层厚度、砂岩和泥岩的比值,划分出内扇、中扇、外扇3个亚相,内扇亚相发育水道砾岩,外扇亚相发育复理石相遗迹化石.该区寿山沟组厚层暗色泥岩,是良好的烃源岩,而扇体可以作为有效的储层,具有很好的油气勘探前景.
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| 关 键 词： | 下二叠统 寿山沟组 海底扇 复理石 遗迹化石 内蒙古 |
| 收稿时间： | 2013-06-28 |
SIGNIFICANCE OF THE SUBMARINE FAN OF LOWER PERMIAN SHOUSHANGOU FORMATION IN WEST UJIMQIN-QI,INNER MONGOLIA |
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| GONG Fan-haoShenyang Institute of Geology and Mineral Resources,CGS,Shenyang,China HUANG XinShenyang Institute of Geology and Mineral Resources,CGS,Shenyang,China ZHENG Yue-juanShenyang Institute of Geology and Mineral Resources,CGS,Shenyang,China CHEN Shu-wang.SIGNIFICANCE OF THE SUBMARINE FAN OF LOWER PERMIAN SHOUSHANGOU FORMATION IN WEST UJIMQIN-QI,INNER MONGOLIA[J].Geology and Resources,2013,22(6):478-483. |
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| Authors: | GONG Fan-haoShenyang Institute of Geology and Mineral Resources CGS Shenyang China HUANG XinShenyang Institute of Geology and Mineral Resources CGS Shenyang China ZHENG Yue-juanShenyang Institute of Geology and Mineral Resources CGS Shenyang China CHEN Shu-wang |
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| Institution: | Shenyang Institute of Geology and Mineral Resources, CGS, Shenyang 110034, China |
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| Abstract: | The recognition about the sedimentary environment of Shoushangou Formation still lacks conclusive evidences at present.Based on the investigation in Tabinmiao forestry center,the Shoushangou Formation is recognized as a series of marine clastic deposition,characterized mainly by feldspathic litharenite,with graded beddings and parallel beddings,belonging to the Bouma sequence,developed with the zoophycos facies of trace fossil assemblagethe deposition is thus recognized as submarine fans.According to the rock types,thickness of single sandstone layer,and the ratio of sandstone and mudstone,three subfacies are divided,i.e.inner fan,middle fan and outer fan.The inner fan develops channel conglomerate; while the outer fan develops flysch trace fossils.The thick black mudstone of Shoushangou Formation could be the good hydrocarbon source rocks.The fan bodies are possibly effective reservoirs,with great prospects for oil and gas exploration. |
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| Keywords: | Lower Permian Shoushangou Formation submarine fan flysch trace fossil Inner Mongolia |
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