| 中国西北地区石炭纪岩相古地理? |
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| 引用本文： | 郭宏莉,朱如凯,邵龙义,何东博,罗忠.中国西北地区石炭纪岩相古地理?[J].古地理学报,2002,4(1):25-35. |
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| 作者姓名： | 郭宏莉 朱如凯 邵龙义 何东博 罗忠 |
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| 作者单位： | 1.中国石油天然气集团公司油气储层重点实验室，北京 100083;2.中国矿业大学（北京校区） 北京 100083 |
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| 基金项目： | 中国石油天然气集团公司“九五”油气勘探科技工程攻关项目 (970 2 0 7- 44 ) |
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| 摘 要： | 根据研究区实测露头剖面沉积构造、岩矿、沉积地球化学、粒度分析、古流向资料、重矿物及沉积相的综合研究，结合地层、古生物、区域岩性资料等，对研究区石炭纪岩相古地理特征进行了分析。研究区早石炭世有5个古陆，即阿勒泰古陆南准噶尔古陆、敦煌-走廊古陆、阿拉善古陆、陇西古陆；有10个沉积相区，即库马苏滨浅海相区、布尔津-富蕴滨浅海相区、博格达滨浅海区、北准噶尔深海-半深海相区、北天山半深海-深海相区、克拉美丽冲积扇-湖泊相区、克拉玛依冲积扇-湖泊区、南天山-北祁连滨浅相区、柴达木碳酸盐台地相区、中祁连滨浅海相区。晚石炭世的岩相古地理与早石炭世相比，既有继承性，也有一定的差异，古陆范围有所小；有5个古陆，即阿勒泰古陆、北准噶尔古陆、马鬃山古陆、敦煌-阿拉善古陆、中天山古陆；有9个沉积相区，即库马苏河湖相区、布津-富蕴河湖相区、克拉美丽－巴里坤滨浅海相区、博乐－库尔勒－红柳园滨浅海相区、克拉玛依－哈密半深海－深海相区、乌鲁木齐生物滩丘区、柴达木碳酸盐岩台地相区、宗务隆山浅海-半深海相区、祁连滨浅海相区。半深海-深海相区、滨浅海相区和三角洲相区是较为有利的气分布区。
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| 关 键 词： | 中国西北地区 石炭纪 沉积相 岩相古地理 含油气系统 地层 古生物 |
| 文章编号： | 1671-1505(2002)01-0025-11 |
| 修稿时间： | 2001年7月18日 |
LITHOFACIES PALAEOGEOGRAPHY OF THE CARBONIFEROUS IN NORTHWEST CHINA |
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| Guo Hongli , Zhu Rukai , Shao Longyi He Dongbo , Luo Zhong , Research Institute of Petroleum Exploration and Development,Beijing Key Laboratory for Oil and Gas Reservoirs,CNPC,Beijing.LITHOFACIES PALAEOGEOGRAPHY OF THE CARBONIFEROUS IN NORTHWEST CHINA[J].Journal of Palaeogeography,2002,4(1):25-35. |
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| Authors: | Guo Hongli Zhu Rukai Shao Longyi He Dongbo Luo Zhong Research Institute of Petroleum Exploration and Development Beijing Key Laboratory for Oil and Gas Reservoirs CNPC Beijing |
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| Institution: | 1.Key Laboratory for Oil and Gas Reservoirs, CNPC,Beijing 100083;2.China university of mining and technology, Beijing 100083 |
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| Abstract: | The Carboniferous lithological and palaeogeograpgical characteristics in Northwest China are discussed, on the basis of analysis on outcrop sedimentary facies, clastic composition, trace elements and REE, particle size, clay minerals, paleocurrent, in combination with regional stratigraphic,palaeontologic and lithologic data. In the Early Carboniferous, there were 5 oldlands,i.e. Aletai oldland, South Junggar oldland, Dunhuang-Zoulang oldland, Alxa oldland, Longxi oldland, and there were 10 facies,i.e. Kumasu littoral-neritic facies, Buerjin-Fuyun littoral-neritic facies, Bogeda littoral-neritic facies, North Junggar bathyal-abyssal facies, North Tianshan bathyal-abyssal facies, Kelameili alluvial fan-lacustrine facies, Kelamayi alluvial fan-lacustrine facies, South Tianshan-North Qilian littoral-neritic facies, Qaidam carbonate platform facies and middle Qilian littoral-neritic facies. The characteristics of lithofacies palaeogeography of the Late Carboniferous are different from those of the Early Carboniferous, and the total area of the oldlands decreased. In the Late Carboniferous, there were 5 oldlands, i.e.Aletai oldland, North Junggar oldland, Mazongshan oldland,Dunhuang-Alaxa oldland, middle Tianshan oldland, and there were 9 facies,i.e.Kumasu fluvial and lacutrine facies, Buerjin-Fuyun fluvial and lacustrine facies, Kelameili-Balikun littoral-neritic facies, Bule-Kuerle-Hongliuyuan littoral-neritic facies, Kelamayi-Hami bathyal-abyssal facies, Wulumuqi organic mound-shoal facies, Qaidam carbonate platform facies, Zongwulongshan neritic-abyssal facies and Qilian littoral-neritic facies. The bathyal-abyssal facies, littoral facies, neritic facies and delta facies are beneficial to oil and gas exploration. |
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| Keywords: | Northwest China Carboniferous sedimentary facies lithofacies palaeogeography oldland oil and gas |
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