鄂尔多斯盆地西缘晚三叠世构造—沉积环境分析

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鄂尔多斯盆地西缘晚三叠世构造—沉积环境分析

杨华

低渗透油气田勘探开发国家工程实验室西安 710018

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Analysis of Tectonic Sedimentory Setting in Middle and Upper Triassic in the West Margin of the Ordos Basin

YANG Hua

National Engineering Laboratory for Exploration and Development of Low Permeability Oil & Gas Field, Xi'an 70018

摘要

摘要: 鄂尔多斯盆地西缘长期以来是地质学家所关注的热点，特别是晚三叠世的物源和形成构造—沉积环境颇具争议。砂岩碎屑组成、碎屑重矿物、地球化学成分、砾岩组成、古水流以及构造变形研究表明，晚三叠世西缘不同地区的物源和构造—沉积环境具有一定的差异性。北部贺兰山地区晚三叠世沉积主要形成于克拉通边缘，巴彦浩特地区为其主要物源区，阿拉善地块为次一级物源区，古流向以由西向东为主，沉积环境由扇三角洲向湖泊环境过渡，该时期为区域挤压背景下的裂谷盆地发育阶段；中部石沟驿地区上三叠统延长组沉积厚度达3 000 m左右，砂岩以长石岩屑砂岩为主，物源区以阿拉善地块为主，古流向由北西向南东，沉积环境为辫状河三角洲沉积环境，构造背景较为复杂，为整体挤压背景下的断陷盆地；南部平凉地区物源主要来自下伏地层和秦祁造山带，古水流主体由南西向北东方向，主体为冲积扇沉积环境，为前陆盆地发育阶段。可见，盆地西缘晚三叠世不同地区具有不同物源属性与构造—沉积环境，并非统一的“类”前陆盆地发育阶段。
- 晚三叠世 /
- 碎屑组成 /
- 重矿物 /
- 地球化学 /
- 源区 /
- 构造—沉积环境
Abstract: Many geologists have paid attention to the west margin of Ordos basin for a long time, the provenance and tectonicsedimenary setting are still controversial. Based on the data analysis of sandstone detrital fragments, heavy mineral assemblages, geochemistry, composition of conglomerates, paleocurrent and tectonic deformation, it is indicated that the provenance and tectonicsediment setting is different in different areas in the west margin of Ordos basin. The deposition of the Upper Triassic in Helan Moutain occurred in craton, and its source areas belonged to the Alxa massif and Bayanhaote Basin, paleocurrent was from west to east, sedimentary setting is from fandelt to lake setting and Helan Moutain was rift basin in the Upper Triassic. The Upper Triassic sedimentation is tremendous, about 3 000 m in Shigouyi area.There are mainly feldspathic sandstone of this sedimentation, the provenance belonged to the Alxa massif, and paleocurrent was from northwest to southeast and Shigouyi area, and sedimentary setting was braidedriver setting. Shigouyi was downfaulted basin in Upper Triassic. The provenance belonged to QinlingQilianshan orogenic zone and stratum in CedipoHuating area, paleocurrent was from southwest to northeast, sedimentary setting was alluvial fan. CedipoHuating area was foreland basin in Upper Triassic. Based on the comprehensive analysis, it is suggested that the provenance and tectonicsedimentation was different in different areas in the west margin of Ordos basin, and being not uniform foreland basin simply. 
- Upper Triassic /
- detrital fragments /
- heavy mineral assemblage /
- geochemistry /
- provenance /
- tectonic sedimentary setting

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[1]	赵慧莹, 谢远云, 迟云平, 康春国, 吴鹏, 孙磊, 魏振宇. 河流过程对小型集水区沉积物地球化学与重矿物组成的影响以巴兰河为例 . 沉积学报, 2025, 43(1): 63-75. doi: 10.14027/j.issn.1000-0550.2023.014
[2]	李俊, 赵红格, 汪建, 郭惠, 邵晓州. 鄂尔多斯盆地西缘中部三叠系延长组碎屑岩沉积环境及物源示踪 . 沉积学报, 2024, 42(5): 1621-1638. doi: 10.14027/j.issn.1000-0550.2022.120
[3]	彭旸, 王波, 于海跃, 董雨洋, 盛莉娜, 杨琳娜, 刘少治, 王少依, 朱晨. 新疆三塘湖盆地条湖-马朗凹陷中下侏罗纪沉积体系演化及物源分析 . 沉积学报, 2024, (): -. doi: 10.14027/j.issn.1000-0550.2023.125
[4]	张晓, 朱丽东, 李凤全, 马桢桢, 熊文婷, 贾佳, 王琳怡. 0.44 Ma以来南方风尘加积型红土物源分析：重矿物和碎屑锆石年代学证据 . 沉积学报, 2022, 40(2): 494-507. doi: 10.14027/j.issn.1000-0550.2020.099
[5]	李姝睿, 孙高远, 茅昌平, 饶文波. 江苏沿岸辐射沙脊物源分析——来自碎屑重矿物与锆石年代学的证据 . 沉积学报, 2022, 40(4): 931-943. doi: 10.14027/j.issn.1000-0550.2022.023
[6]	姜柳青, 汪卫国, 梁积伟, 戴霜, 蒋敏, 陶文星, 马晓军. 太平洋CC区西部沉积物地球化学特征及其成因 . 沉积学报, 2021, 39(5): 1185-1197. doi: 10.14027/j.issn.1000-0550.2020.070
[7]	占王忠, 谭富文. 羌塘盆地晚三叠世岩相古地理特征与烃源岩 . 沉积学报, 2020, 38(4): 876-885. doi: 10.14027/j.issn.1000-0550.2019.093
[8]	雷琳琳, 赵红格, 邵晓州, 徐智, 郭惠, 李亚男, 付星辉, 李蒙. 鄂尔多斯盆地西北缘晚三叠世早期物源组成 . 沉积学报, 2020, 38(6): 1258-1271. doi: 10.14027/j.issn.1000-0550.2019.105
[9]	龚大兴, 郭佳, 罗俊峰, 岳相元, 周雄, 周家云. 川西马尔康—金川地区晚三叠世松潘甘孜残留洋盆复理石建造沉积特征与沉积模式 . 沉积学报, 2019, 37(6): 1210-1223. doi: 10.14027/j.issn.1000-0550.2019.031
[10]	黄鑫, 简星, 张巍, 洪东铭, 关平, 杜瑾雪, 张鹏飞. 碎屑石榴石地球化学物源分析与解释:粒度的影响 . 沉积学报, 2019, 37(3): 511-518. doi: 10.14027/j.issn.1000-0550.2018.161
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[12]	蓝先洪, 秦亚超, 王中波, 陈晓辉, 密蓓蓓, 黄龙. 渤海东部晚更新世以来的沉积物地球化学特征 . 沉积学报, 2016, 34(5): 892-901. doi: 10.14027/j.cnki.cjxb.2016.05.008
[13]	田洋, 赵小明, 王令占, 涂兵, 谢国刚, 曾波夫. 重庆石柱二叠纪栖霞组地球化学特征及其环境意义 . 沉积学报, 2014, 32(6): 1035-1045.
[14]	. 库车前陆盆地三叠系—新近系重矿物组合特征与盆山构造演化关系 . 沉积学报, 2014, 32(1): 68-77.
[15]	. 台湾海峡表层沉积物中黏土矿物特征及物质来源 . 沉积学报, 2013, 31(1): 120-129.
[16]	陈洪德. 龙门山造山带晚三叠世构造隆升的分段性及层序充填响应 . 沉积学报, 2011, 29(4): 622-630.
[17]	李双建. 碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示 . 沉积学报, 2006, 24(1): 28-35.
[18]	王永栋, 江德昕, 谢小平. 陕西秃尾河晚三叠世孢粉植物群及其环境意义 . 沉积学报, 2003, 21(3): 434-440.
[19]	宋春晖, 孙淑荣, 方小敏, 孙东. 酒西盆地晚新生代沉积物重矿物分析与高原北部隆升 . 沉积学报, 2002, 20(4): 552-559.
[20]	杨逢清, 熊伟. 四川省壤塘县金木达晚三叠世深水沉积中的遗迹化石及沉积环境分析 . 沉积学报, 2000, 18(1): 73-79.

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鄂尔多斯盆地西缘晚三叠世构造—沉积环境分析

低渗透油气田勘探开发国家工程实验室西安 710018

收稿日期: 1900-01-01

修回日期: 1900-01-01

刊出日期: 2011-06-10

关键词:

重矿物 /

源区 /

摘要: 鄂尔多斯盆地西缘长期以来是地质学家所关注的热点，特别是晚三叠世的物源和形成构造—沉积环境颇具争议。砂岩碎屑组成、碎屑重矿物、地球化学成分、砾岩组成、古水流以及构造变形研究表明，晚三叠世西缘不同地区的物源和构造—沉积环境具有一定的差异性。北部贺兰山地区晚三叠世沉积主要形成于克拉通边缘，巴彦浩特地区为其主要物源区，阿拉善地块为次一级物源区，古流向以由西向东为主，沉积环境由扇三角洲向湖泊环境过渡，该时期为区域挤压背景下的裂谷盆地发育阶段；中部石沟驿地区上三叠统延长组沉积厚度达3 000 m左右，砂岩以长石岩屑砂岩为主，物源区以阿拉善地块为主，古流向由北西向南东，沉积环境为辫状河三角洲沉积环境，构造背景较为复杂，为整体挤压背景下的断陷盆地；南部平凉地区物源主要来自下伏地层和秦祁造山带，古水流主体由南西向北东方向，主体为冲积扇沉积环境，为前陆盆地发育阶段。可见，盆地西缘晚三叠世不同地区具有不同物源属性与构造—沉积环境，并非统一的“类”前陆盆地发育阶段。

Analysis of Tectonic Sedimentory Setting in Middle and Upper Triassic in the West Margin of the Ordos Basin

National Engineering Laboratory for Exploration and Development of Low Permeability Oil & Gas Field, Xi'an 70018

Received Date: 1900-01-01

Rev Recd Date: 1900-01-01

Publish Date: 2011-06-10

Keywords:

Abstract: Many geologists have paid attention to the west margin of Ordos basin for a long time, the provenance and tectonicsedimenary setting are still controversial. Based on the data analysis of sandstone detrital fragments, heavy mineral assemblages, geochemistry, composition of conglomerates, paleocurrent and tectonic deformation, it is indicated that the provenance and tectonicsediment setting is different in different areas in the west margin of Ordos basin. The deposition of the Upper Triassic in Helan Moutain occurred in craton, and its source areas belonged to the Alxa massif and Bayanhaote Basin, paleocurrent was from west to east, sedimentary setting is from fandelt to lake setting and Helan Moutain was rift basin in the Upper Triassic. The Upper Triassic sedimentation is tremendous, about 3 000 m in Shigouyi area.There are mainly feldspathic sandstone of this sedimentation, the provenance belonged to the Alxa massif, and paleocurrent was from northwest to southeast and Shigouyi area, and sedimentary setting was braidedriver setting. Shigouyi was downfaulted basin in Upper Triassic. The provenance belonged to QinlingQilianshan orogenic zone and stratum in CedipoHuating area, paleocurrent was from southwest to northeast, sedimentary setting was alluvial fan. CedipoHuating area was foreland basin in Upper Triassic. Based on the comprehensive analysis, it is suggested that the provenance and tectonicsedimentation was different in different areas in the west margin of Ordos basin, and being not uniform foreland basin simply. 

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鄂尔多斯盆地西缘晚三叠世构造—沉积环境分析

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Analysis of Tectonic Sedimentory Setting in Middle and Upper Triassic in the West Margin of the Ordos Basin

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鄂尔多斯盆地西缘晚三叠世构造—沉积环境分析

低渗透油气田勘探开发国家工程实验室西安 710018

English Abstract

Analysis of Tectonic Sedimentory Setting in Middle and Upper Triassic in the West Margin of the Ordos Basin

National Engineering Laboratory for Exploration and Development of Low Permeability Oil & Gas Field, Xi'an 70018

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鄂尔多斯盆地西缘晚三叠世构造—沉积环境分析

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Analysis of Tectonic Sedimentory Setting in Middle and Upper Triassic in the West Margin of the Ordos Basin

计量

出版历程

目录

鄂尔多斯盆地西缘晚三叠世构造—沉积环境分析

低渗透油气田勘探开发国家工程实验室 西安 710018

English Abstract

Analysis of Tectonic Sedimentory Setting in Middle and Upper Triassic in the West Margin of the Ordos Basin

National Engineering Laboratory for Exploration and Development of Low Permeability Oil & Gas Field, Xi'an 70018

全文HTML

目录

友情链接

期刊在线

联系我们

低渗透油气田勘探开发国家工程实验室西安 710018