川北南江地区下三叠统飞一段风暴沉积特征及地质意义

林彤; 刘树根; 宋金民; 李智武; 白志强; 彭瀚霖

doi:10.14027/j.cnki.cjxb.2015.05.006

ISSN 1000-0550 CN 62-1038/P

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川北南江地区下三叠统飞一段风暴沉积特征及地质意义

林彤, 刘树根, 宋金民, 李智武, 白志强, 彭瀚霖

文章导航 > 沉积学报 > 2015 > 33(5): 899-908

林彤, 刘树根, 宋金民, 李智武, 白志强, 彭瀚霖. 川北南江地区下三叠统飞一段风暴沉积特征及地质意义[J]. 沉积学报, 2015, 33(5): 899-908. doi: 10.14027/j.cnki.cjxb.2015.05.006

引用本文:

LIN Tong, LIU ShuGen, SONG JinMin, LI ZhiWu, BAI ZhiQiang, PENG HanLin. The Sedimentary Characteristics and Geological Significances of Carbonate Tempestites near the Boundary of Late Permian to Early Triassic at Nanjiang Section, North of Sichuan Basin[J]. Acta Sedimentologica Sinica, 2015, 33(5): 899-908. doi: 10.14027/j.cnki.cjxb.2015.05.006

Citation:

LIN Tong, LIU ShuGen, SONG JinMin, LI ZhiWu, BAI ZhiQiang, PENG HanLin. The Sedimentary Characteristics and Geological Significances of Carbonate Tempestites near the Boundary of Late Permian to Early Triassic at Nanjiang Section, North of Sichuan Basin[J]. Acta Sedimentologica Sinica, 2015, 33(5): 899-908. doi: 10.14027/j.cnki.cjxb.2015.05.006

引用本文:

Citation:

LIN Tong, LIU ShuGen, SONG JinMin, LI ZhiWu, BAI ZhiQiang, PENG HanLin. The Sedimentary Characteristics and Geological Significances of Carbonate Tempestites near the Boundary of Late Permian to Early Triassic at Nanjiang Section, North of Sichuan Basin[J]. Acta Sedimentologica Sinica, 2015, 33(5): 899-908. doi: 10.14027/j.cnki.cjxb.2015.05.006

川北南江地区下三叠统飞一段风暴沉积特征及地质意义

doi: 10.14027/j.cnki.cjxb.2015.05.006

林彤¹,
刘树根^1,2,
宋金民^1,2,
李智武^2,3,
白志强¹,
彭瀚霖⁴

1.
成都理工大学能源学院成都 610059;
2.
成都理工大学"油气藏地质及开发工程"国家重点实验室成都 610059;
3.
成都理工大学沉积地质研究院成都 610059;
4.
中国石油西南油气田公司勘探开发研究院成都 610059

基金项目: 中国地质调查局"大巴山前缘海相油气地质综合调查评价"(编号:1212011220748)、"中国西部大型叠合盆地构造演化差异性与油气聚集分布规律"(编号:1212011220761)与国家"973"项目(编号:2012CB214805)联合资助

详细信息

作者简介:
林彤女 1990年出生硕士研究生矿产普查与勘探专业 E-mail: ltong0118@163.com

中图分类号: P512.2;P588.2

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The Sedimentary Characteristics and Geological Significances of Carbonate Tempestites near the Boundary of Late Permian to Early Triassic at Nanjiang Section, North of Sichuan Basin

1.
College of Energy Resources, Chengdu University of Technology, Chengdu 610059;
2.
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (CDUT), Chengdu 610059;
3.
Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059;
4.
Exploration and Development Research Institute of Southwest Oil & Gasfield Company, PetroChina, Chengdu 610059

摘要

摘要: 为进一步探究四川盆地北部南江剖面近P-T界线处频繁出露的风暴沉积暗含的地质信息,探讨早三叠世巨型季风气候对四川盆地北部沉积的影响,对研究剖面进行野外及镜下岩石学、沉积学特征综合分析,以底面侵蚀构造、风暴砾屑层、丘状交错层理等作为重要的识别标志,识别出风暴作用不同阶段的沉积产物高峰期(Sa)、衰减期(Sb)、停息期(Sc)段。根据Sa、Sb、Sc段的不同组合形式,将出露的多套风暴沉积划分为代表不同水深环境的I、II、III、IV四种风暴层序结构类型;在此基础上对Sa段风暴颗粒进行粒度分析并对风暴沉积厚度、层序结构类型等作纵向比较,风暴沉积表现为向上风暴作用逐渐增强的沉积序列。结合上寺剖面风暴沉积研究并进行横向对比,发现两剖面风暴沉积均发育在靠近P-T界线的早三叠世地层中且沉积规模接近,推测应为早三叠世时期同一巨型季风体制下受到频繁风暴作用影响的事件性沉积,并共同揭示了开江-梁平海槽边缘在早三叠世逐渐向广海方向推进、海槽逐渐被填平的沉积过程。
- 四川盆地南江 /
- 下三叠统 /
- 风暴沉积 /
- 地质意义
Abstract: To further explore the significance of the tempestites that exposed near the boundary of Permian and Triassic at Nanjiang section, and investigate the effect of Early Triassic monsoon on the sedimentary characteristic in northern Sichuan Basin, several set of tempestites have been researched in this article. The paper focuses on the characteristics of sedimentary and petrology in both outcrop section and thin sections of the storm deposits at Nanjiang section. According to the different sedimentary characteristic, each set of tempestite can be divided into three section: Section a is developed at storm active period, Section b is developed at storm energy declining period, Section c is developed at storm rest period. Depending on the combination of Sa, Sb, Sc, tempestites can be divided into four kinds of storm sequence structure type to represent different sedimentary environment. Then based on the grain-size analysis of storm particles and the comparison of sedimentary thickness, we found that the storm energy gradually increased upward. Furthermore, when the tempestites at Nanjiang section are contrasted with Shangsi section, showed that the thickness and the characteristic of them is similar and that they are both developed at the Early Triassic sedimentary strata near the boundary of P/T. Therefore, a conclusion can be made that they are the same deposition and both of them are influenced by frequent storm events under the giant monsoon system at Early Triassic Period. What`s more, they reveal the deposit process that the shelf margin gradually was in movement in the direction of the wide sea at Early Triassic, and the Trough gradually being filled simultaneously.
- Sichuan Basin /
- Nanjiang section /
- Early Triassic /
- tempestite

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川北南江地区下三叠统飞一段风暴沉积特征及地质意义

doi: 10.14027/j.cnki.cjxb.2015.05.006

1. 成都理工大学能源学院成都 610059;

2. 成都理工大学"油气藏地质及开发工程"国家重点实验室成都 610059;

3. 成都理工大学沉积地质研究院成都 610059;

4. 中国石油西南油气田公司勘探开发研究院成都 610059

作者简介:
林彤女 1990年出生硕士研究生矿产普查与勘探专业 E-mail: ltong0118@163.com

收稿日期: 2014-09-22
修回日期: 2014-11-11
刊出日期: 2015-10-10

中图分类号: P512.2;P588.2

关键词:

摘要: 为进一步探究四川盆地北部南江剖面近P-T界线处频繁出露的风暴沉积暗含的地质信息,探讨早三叠世巨型季风气候对四川盆地北部沉积的影响,对研究剖面进行野外及镜下岩石学、沉积学特征综合分析,以底面侵蚀构造、风暴砾屑层、丘状交错层理等作为重要的识别标志,识别出风暴作用不同阶段的沉积产物高峰期(Sa)、衰减期(Sb)、停息期(Sc)段。根据Sa、Sb、Sc段的不同组合形式,将出露的多套风暴沉积划分为代表不同水深环境的I、II、III、IV四种风暴层序结构类型;在此基础上对Sa段风暴颗粒进行粒度分析并对风暴沉积厚度、层序结构类型等作纵向比较,风暴沉积表现为向上风暴作用逐渐增强的沉积序列。结合上寺剖面风暴沉积研究并进行横向对比,发现两剖面风暴沉积均发育在靠近P-T界线的早三叠世地层中且沉积规模接近,推测应为早三叠世时期同一巨型季风体制下受到频繁风暴作用影响的事件性沉积,并共同揭示了开江-梁平海槽边缘在早三叠世逐渐向广海方向推进、海槽逐渐被填平的沉积过程。

English Abstract

The Sedimentary Characteristics and Geological Significances of Carbonate Tempestites near the Boundary of Late Permian to Early Triassic at Nanjiang Section, North of Sichuan Basin

1. College of Energy Resources, Chengdu University of Technology, Chengdu 610059;

2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (CDUT), Chengdu 610059;

3. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059;

4. Exploration and Development Research Institute of Southwest Oil & Gasfield Company, PetroChina, Chengdu 610059

Received Date: 2014-09-22
Rev Recd Date: 2014-11-11
Publish Date: 2015-10-10

Keywords:

Abstract: To further explore the significance of the tempestites that exposed near the boundary of Permian and Triassic at Nanjiang section, and investigate the effect of Early Triassic monsoon on the sedimentary characteristic in northern Sichuan Basin, several set of tempestites have been researched in this article. The paper focuses on the characteristics of sedimentary and petrology in both outcrop section and thin sections of the storm deposits at Nanjiang section. According to the different sedimentary characteristic, each set of tempestite can be divided into three section: Section a is developed at storm active period, Section b is developed at storm energy declining period, Section c is developed at storm rest period. Depending on the combination of Sa, Sb, Sc, tempestites can be divided into four kinds of storm sequence structure type to represent different sedimentary environment. Then based on the grain-size analysis of storm particles and the comparison of sedimentary thickness, we found that the storm energy gradually increased upward. Furthermore, when the tempestites at Nanjiang section are contrasted with Shangsi section, showed that the thickness and the characteristic of them is similar and that they are both developed at the Early Triassic sedimentary strata near the boundary of P/T. Therefore, a conclusion can be made that they are the same deposition and both of them are influenced by frequent storm events under the giant monsoon system at Early Triassic Period. What`s more, they reveal the deposit process that the shelf margin gradually was in movement in the direction of the wide sea at Early Triassic, and the Trough gradually being filled simultaneously.

引用本文:

Citation:

LIN Tong, LIU ShuGen, SONG JinMin, LI ZhiWu, BAI ZhiQiang, PENG HanLin. The Sedimentary Characteristics and Geological Significances of Carbonate Tempestites near the Boundary of Late Permian to Early Triassic at Nanjiang Section, North of Sichuan Basin[J]. Acta Sedimentologica Sinica, 2015, 33(5): 899-908. doi: 10.14027/j.cnki.cjxb.2015.05.006

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川北南江地区下三叠统飞一段风暴沉积特征及地质意义

doi: 10.14027/j.cnki.cjxb.2015.05.006

作者简介:
林彤女 1990年出生硕士研究生矿产普查与勘探专业 E-mail: ltong0118@163.com

计量

The Sedimentary Characteristics and Geological Significances of Carbonate Tempestites near the Boundary of Late Permian to Early Triassic at Nanjiang Section, North of Sichuan Basin

计量

目录

川北南江地区下三叠统飞一段风暴沉积特征及地质意义

doi: 10.14027/j.cnki.cjxb.2015.05.006

1. 成都理工大学能源学院成都 610059;

2. 成都理工大学"油气藏地质及开发工程"国家重点实验室成都 610059;

3. 成都理工大学沉积地质研究院成都 610059;

4. 中国石油西南油气田公司勘探开发研究院成都 610059

作者简介:
林彤女 1990年出生硕士研究生矿产普查与勘探专业 E-mail: ltong0118@163.com

English Abstract

The Sedimentary Characteristics and Geological Significances of Carbonate Tempestites near the Boundary of Late Permian to Early Triassic at Nanjiang Section, North of Sichuan Basin

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川北南江地区下三叠统飞一段风暴沉积特征及地质意义

doi: 10.14027/j.cnki.cjxb.2015.05.006

作者简介: 林彤 女 1990年出生 硕士研究生 矿产普查与勘探专业 E-mail: ltong0118@163.com

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The Sedimentary Characteristics and Geological Significances of Carbonate Tempestites near the Boundary of Late Permian to Early Triassic at Nanjiang Section, North of Sichuan Basin

计量

出版历程

目录

川北南江地区下三叠统飞一段风暴沉积特征及地质意义

doi: 10.14027/j.cnki.cjxb.2015.05.006

1. 成都理工大学能源学院 成都 610059; 2. 成都理工大学"油气藏地质及开发工程"国家重点实验室 成都 610059; 3. 成都理工大学沉积地质研究院 成都 610059; 4. 中国石油西南油气田公司勘探开发研究院 成都 610059

作者简介: 林彤 女 1990年出生 硕士研究生 矿产普查与勘探专业 E-mail: ltong0118@163.com

English Abstract

The Sedimentary Characteristics and Geological Significances of Carbonate Tempestites near the Boundary of Late Permian to Early Triassic at Nanjiang Section, North of Sichuan Basin

全文HTML

目录

友情链接

期刊在线

联系我们

作者简介:
林彤女 1990年出生硕士研究生矿产普查与勘探专业 E-mail: ltong0118@163.com

1. 成都理工大学能源学院成都 610059;

2. 成都理工大学"油气藏地质及开发工程"国家重点实验室成都 610059;

3. 成都理工大学沉积地质研究院成都 610059;

4. 中国石油西南油气田公司勘探开发研究院成都 610059

作者简介:
林彤女 1990年出生硕士研究生矿产普查与勘探专业 E-mail: ltong0118@163.com