青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应

李 勇

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青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应

李勇

文章导航 > 沉积学报 > 2006 > 24(2): 153-164

李勇. 青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应[J]. 沉积学报, 2006, 24(2): 153-164.

引用本文:

李勇. 青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应[J]. 沉积学报, 2006, 24(2): 153-164.

LI Yong. Sedimentary Responses to Late Cenozoic Thrusting and Strikeslipping of Longmen Shan along Eastern Margin of Tibetan Plateau[J]. Acta Sedimentologica Sinica, 2006, 24(2): 153-164.

Citation:

LI Yong. Sedimentary Responses to Late Cenozoic Thrusting and Strikeslipping of Longmen Shan along Eastern Margin of Tibetan Plateau[J]. Acta Sedimentologica Sinica, 2006, 24(2): 153-164.

李勇. 青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应[J]. 沉积学报, 2006, 24(2): 153-164.

引用本文:

李勇. 青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应[J]. 沉积学报, 2006, 24(2): 153-164.

LI Yong. Sedimentary Responses to Late Cenozoic Thrusting and Strikeslipping of Longmen Shan along Eastern Margin of Tibetan Plateau[J]. Acta Sedimentologica Sinica, 2006, 24(2): 153-164.

Citation:

青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应

李勇

成都理工大学油气藏及开发工程国家重点实验室成都 610059

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李勇

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Sedimentary Responses to Late Cenozoic Thrusting and Strikeslipping of Longmen Shan along Eastern Margin of Tibetan Plateau

LI Yong

National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059

More Information

Corresponding author: LI Yong

摘要

摘要: 成都盆地位于青藏高原东缘，夹于龙门山与龙泉山之间，盆地的长轴方向平行于龙门山，呈现为北东—南西向展布的线性盆地。盆地中充填了3.6Ma以来的半固结—松散堆积物，最大厚度为541 m，在垂向上由下部的大邑砾岩、中部的雅安砾石层和上部的上更新统至全新统砾石层组成，其与下覆地层均为不整合接触，显示该盆地是一个单独的成盆期,并非是在中生代前陆盆地基础上形成的继承性盆地。在垂直于龙门山造山带方向上，成都盆地具不对称的楔形结构,沉积基底面整体向西呈阶梯状倾斜，盆地中充填的碎屑物质均来源于盆地西侧的龙门山，具横向水系和单向充填的特征；而且盆地的沉降中心具有逐渐向远离造山带方向迁移的特征，显示盆地的挤压方向垂直于龙门山主断裂，造成了成都盆地在垂直于造山带方向上的构造缩短。在平行于龙门山造山带方向上，成都盆地具有一系列的北东向延伸的次级凸起和凹陷，凹陷和凸起相间分布，且在空间上呈斜列形式展布于盆地的底部，其中次级凹陷（沉降中心）和冲积扇具有向平行龙门山造山带方向迁移的特征，表明成都盆地西缘的龙门山断裂具有右旋走滑的特征。鉴于以上特征，认为成都盆地是在龙门山造山带晚新生代走滑与逆冲的联合作用下形成的走滑挤压盆地。
- 成都盆地 /
- 晚新生代 /
- 走滑作用 /
- 盆山耦合 /
- 龙门山 /
- 青藏高原东缘
Abstract: Chengdu basin developed ahead of Longmen Shan along the eastern margin of Tibetan Plateau, lying between the Longmen Shan and Longquan Shan, and extends from southwest to northeast with the long axis of the basin parallel to Longmen Shan. The filling in the basin with a maximum thickness of 541m include Dayi conglomerate, Yaan gravel layer and Late Pleistocene and Holocene gravel layer. In the transverse section of the basin(vertical to Longmen Shan), the wedge shaped sediments in the basin were derived from Longmen Shan and gradually northwestwards thickening, the depocenter is located in the northwestern part of the basin. As thrusting progressed southeastwards, the northwestern margin and the depocenter of the basin had been progressively migrated southeastwards. According to this evidence, it can be inferred that the direction of trusting and tectonic shorting was from NWSE and vertical to Longmen Shan. In the longitudinal section (parallel to Longmen Shan), there are many minor echelon depressions and uplifts, as dextral strikeslipping progressed northeastwards, the minor depression (rhombocham) and fan had been progressively migrated northeastwards. According to these lines of evidence, we can infer that the direction of dextral strikeslipping was from SWNE and parallel to Longmen Shan. So we draw a conclusion that the Chengdu basin is one of typical transpressional basin controlled by thrusting and strikeslipping along Longmen Shan since 3.6Ma.
- Chengdu basin /
- basinmountain coupling /
- Late Cenozoic /
- trusting dextral strikeslipping /
- Longmenshan /
- Eastern margin

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[1]	杜怡星, 时志强. 川西北地区上三叠统卡尼阶古喀斯特的发现及研究意义 . 沉积学报, 2017, 35(3): 460-469. doi: 10.14027/j.cnki.cjxb.2017.03.004
[2]	王振, 邱思静, 陈一凡, 程璐, 吕红华, 郑祥民. 新疆柴窝堡盆地南缘晚新生代陆源沉积物岩石磁学特征及其古环境意义 . 沉积学报, 2017, 35(3): 516-526. doi: 10.14027/j.cnki.cjxb.2017.03.010
[3]	白毛伟, 谢小平, 陈芝聪, 叶卉, 徐文阳, 江若辰, 李冰, 李佳丽. 龙门山北东段山前涪江第四纪冲洪积扇地貌演化及其构造响应 . 沉积学报, 2017, 35(1): 85-92. doi: 10.14027/j.cnki.cjxb.2017.01.009
[4]	. 西宁和贵德盆地新生代沉积物重矿物变化对构造活动的响应 . 沉积学报, 2013, 31(1): 139-148.
[5]	. 青藏高原北部新生代构造演化在柴达木盆地中的沉积记录 . 沉积学报, 2013, 31(05): 824-833.
[6]	颜照坤. 龙门山前陆盆地晚三叠世沉积通量与造山带的隆升和剥蚀 . 沉积学报, 2010, 28(1): 91-101.
[7]	李玮. 新疆博格达山北缘晚古生代—中生代古水流样式转折及其构造意义 . 沉积学报, 2007, 25(2): 283-292.
[8]	戴传瑞, 张廷山, 郑华平, 叶舟, 梁兴, 姜照勇, 黄世伟, 胡清雄. 盆山耦合关系的讨论——以洞庭盆地与周边造山带为例 . 沉积学报, 2006, (5): 657-665.
[9]	. 盆山耦合关系的讨论——以洞庭盆地与周边造山带为例 . 沉积学报, 2006, 24(05): 657-665.
[10]	李勇. 青藏高原东缘晚新生代成都盆地物源分析与水系演化 . 沉积学报, 2006, 24(3): 309-320.
[11]	李忠, 王清晨, 王道轩, 林伟. 晚新生代天山隆升与库车坳陷构造转换的沉积约束 . 沉积学报, 2003, 21(1): 38-45.
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青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应

李勇

成都理工大学油气藏及开发工程国家重点实验室成都 610059

通讯作者: 李勇

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2006-04-10

关键词:

龙门山 /

摘要: 成都盆地位于青藏高原东缘，夹于龙门山与龙泉山之间，盆地的长轴方向平行于龙门山，呈现为北东—南西向展布的线性盆地。盆地中充填了3.6Ma以来的半固结—松散堆积物，最大厚度为541 m，在垂向上由下部的大邑砾岩、中部的雅安砾石层和上部的上更新统至全新统砾石层组成，其与下覆地层均为不整合接触，显示该盆地是一个单独的成盆期,并非是在中生代前陆盆地基础上形成的继承性盆地。在垂直于龙门山造山带方向上，成都盆地具不对称的楔形结构,沉积基底面整体向西呈阶梯状倾斜，盆地中充填的碎屑物质均来源于盆地西侧的龙门山，具横向水系和单向充填的特征；而且盆地的沉降中心具有逐渐向远离造山带方向迁移的特征，显示盆地的挤压方向垂直于龙门山主断裂，造成了成都盆地在垂直于造山带方向上的构造缩短。在平行于龙门山造山带方向上，成都盆地具有一系列的北东向延伸的次级凸起和凹陷，凹陷和凸起相间分布，且在空间上呈斜列形式展布于盆地的底部，其中次级凹陷（沉降中心）和冲积扇具有向平行龙门山造山带方向迁移的特征，表明成都盆地西缘的龙门山断裂具有右旋走滑的特征。鉴于以上特征，认为成都盆地是在龙门山造山带晚新生代走滑与逆冲的联合作用下形成的走滑挤压盆地。

English Abstract

Sedimentary Responses to Late Cenozoic Thrusting and Strikeslipping of Longmen Shan along Eastern Margin of Tibetan Plateau

LI Yong

National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059

Corresponding author: LI Yong

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2006-04-10

Keywords:

Abstract: Chengdu basin developed ahead of Longmen Shan along the eastern margin of Tibetan Plateau, lying between the Longmen Shan and Longquan Shan, and extends from southwest to northeast with the long axis of the basin parallel to Longmen Shan. The filling in the basin with a maximum thickness of 541m include Dayi conglomerate, Yaan gravel layer and Late Pleistocene and Holocene gravel layer. In the transverse section of the basin(vertical to Longmen Shan), the wedge shaped sediments in the basin were derived from Longmen Shan and gradually northwestwards thickening, the depocenter is located in the northwestern part of the basin. As thrusting progressed southeastwards, the northwestern margin and the depocenter of the basin had been progressively migrated southeastwards. According to this evidence, it can be inferred that the direction of trusting and tectonic shorting was from NWSE and vertical to Longmen Shan. In the longitudinal section (parallel to Longmen Shan), there are many minor echelon depressions and uplifts, as dextral strikeslipping progressed northeastwards, the minor depression (rhombocham) and fan had been progressively migrated northeastwards. According to these lines of evidence, we can infer that the direction of dextral strikeslipping was from SWNE and parallel to Longmen Shan. So we draw a conclusion that the Chengdu basin is one of typical transpressional basin controlled by thrusting and strikeslipping along Longmen Shan since 3.6Ma.

李勇. 青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应[J]. 沉积学报, 2006, 24(2): 153-164.

引用本文:

李勇. 青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应[J]. 沉积学报, 2006, 24(2): 153-164.

LI Yong. Sedimentary Responses to Late Cenozoic Thrusting and Strikeslipping of Longmen Shan along Eastern Margin of Tibetan Plateau[J]. Acta Sedimentologica Sinica, 2006, 24(2): 153-164.

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青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应

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Sedimentary Responses to Late Cenozoic Thrusting and Strikeslipping of Longmen Shan along Eastern Margin of Tibetan Plateau

Corresponding author: LI Yong

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青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应

成都理工大学油气藏及开发工程国家重点实验室成都 610059

通讯作者: 李勇

English Abstract

Sedimentary Responses to Late Cenozoic Thrusting and Strikeslipping of Longmen Shan along Eastern Margin of Tibetan Plateau

National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059

Corresponding author: LI Yong

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青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应

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Sedimentary Responses to Late Cenozoic Thrusting and Strikeslipping of Longmen Shan along Eastern Margin of Tibetan Plateau

Corresponding author: LI Yong

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青藏高原东缘龙门山晚新生代走滑挤压作用的沉积响应

成都理工大学油气藏及开发工程国家重点实验室 成都 610059

通讯作者: 李 勇

English Abstract

Sedimentary Responses to Late Cenozoic Thrusting and Strikeslipping of Longmen Shan along Eastern Margin of Tibetan Plateau

National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059

Corresponding author: LI Yong

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通讯作者:
李勇

成都理工大学油气藏及开发工程国家重点实验室成都 610059

通讯作者: 李勇