| 漠河盆地中侏罗统沉积特征研究及其地质意义 |
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| 引用本文： | 李 健,张 霞,侯 伟,等. 漠河盆地中侏罗统沉积特征研究及其地质意义[J]. 江苏地质, 2014, 38(1): 1-11 |
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| 作者姓名： | 李 健 张 霞 侯 伟 等 |
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| 作者单位： | 江苏省有色金属华东地质勘查局 |
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| 基金项目： | 国土资源部全国油气资源战略选区大庆外围项目(XQ 2004 07) |
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| 摘 要： | 从露头、岩芯、测井、薄片鉴定等方面出发对漠河盆地中侏罗统沉积特征进行了详细的研究。中侏罗世漠河盆地主要发育冲积扇、扇三角洲和湖泊相沉积,其中冲积扇相可划分为扇根、扇中、扇端3个亚相;扇三角洲相可划分为扇三角洲平原、扇三角洲前缘、前扇三角洲3个亚相;湖泊相可划分为滨湖、浅湖、半深湖3个亚相。中侏罗世漠河盆地从南向北盆地水体加深,从绣峰组到开库康组,具有冲积扇—扇三角洲平原—扇三角洲前缘—滨浅湖—半深湖的变化趋势。从生储盖条件分析,漠河盆地具有较好的油气勘探前景。
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| 关 键 词： | 沉积相 沉积特征 粒度分析 中侏罗统 漠河盆地 黑龙江 |
| 收稿时间： | 2013-04-16 |
| 修稿时间： | 2013-04-27 |
On sedimentary characteristics and its geological implications in middle Jurassic in Mohe Basin |
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| LI Jian. On sedimentary characteristics and its geological implications in middle Jurassic in Mohe Basin[J]. Jiangsu Geology, 2014, 38(1): 1-11 |
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| Authors: | LI Jian |
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| Affiliation: | 1.East China Geological Exploration Bureau of Nonferrous Metals in Jiangsu Province, Nanjing 210007, China; 2.School of Earth Sci- ences and Engineering, Nanjing University, Nanjing 210023, China; 3.School of Energy Resources, China University of Geosciences, Beijing 1000835, China; 4.PetroChina Coalbed Methane Company Limited, Beijing 100028, China; 5.College of Earth Sciences, Jilin University, Changchun 130061, China) |
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| Abstract: | The authors carried out a detailed study on the sedimentary characteristics of middle Jurassic in Mohe Basin based on the outcrops, cores, loggings and thin section identification. Detailed research indicated that the middle Jurassic Epoch in Mohe Basin con- tained alluvial fan, fan delta and lacustrine facies. The alluvial facies could be divided into root fan, middle fan and distal fan subfa- cies. The fan delta facies could be divided into fan delta plain, fan delta front and pro-fan delta subfacies. The lacustrine facies could be divided into lakeshore, shallow lacustrine and semi-deep lake subfacies. The water gradually deepened from the south to the north in middle Jurassic Epoch in Mohe Basin. The sedimentary evolution from Xiufeng to Kaikukang formations was as alluvial fan-fan delta plain-fan delta front-shore-shallow lacustrine-semi-deep lake. The source-reservoir-cap conditions analysis showed that Mohe Basin was of good oil and gas exploration prospect. |
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| Keywords: | Sedimentary facies Sedimentary characteristics Grain size analysis Middle Jurassic Mohe Basin Heilongjiang |
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