Sequence Division,Correlation and Framework of Lower a nd Middle Triassic in Sichuan-Guizhou-Yunnan-Guangxi Region

TIAN Jing chun; CHEN Hong de; PENG Jun; QIN Jian xiong; HOU Zhong jian; SHOU Jian feng; YANG Xiao ning; SHENG An jiang; CHEN Zhi liao

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Article Navigation > Acta Sedimentologica Sinica > 2000 > 18(2): 198-204

TIAN Jing chun, CHEN Hong de, PENG Jun, QIN Jian xiong, HOU Zhong jian, SHOU Jian feng, YANG Xiao ning, SHENG An jiang, CHEN Zhi liao. Sequence Division,Correlation and Framework of Lower a nd Middle Triassic in Sichuan-Guizhou-Yunnan-Guangxi Region[J]. Acta Sedimentologica Sinica, 2000, 18(2): 198-204.

Citation:

Sequence Division,Correlation and Framework of Lower a nd Middle Triassic in Sichuan-Guizhou-Yunnan-Guangxi Region

1 State Key Laboratory of Oil and Gas Reservoir Geology and Ex ploitation,Institute of Sedimentany Geology, Chengdu University of Techn ology Chengdu 610059;
2 Hangzhou Institute of Petroleum Geology Hangzhou 310023

Received Date: 1999-06-30
Publish Date: 2000-06-10

Abstract

The study area included Sichuan,Yunnan,Guizhou and Guangxi, there, the strata of lower and middle Triassic are widely distributed and well dev eloped, it is one of important areas can be used to study the sequence division, correlation and framework of Triassic system. Therefore, the paper based on th esequence stratigraphy theory, discussed in detail the characteristics of thes equence boundary surface which included uncomformity surface, lithologic-charac ter and facies change surface, karst surface and errosion surface, etc. Among them, the uncomformlty surface, errosion surface and karst surface are type-Ⅰ bo undary surface, and lithologic-character and facies change surface are type-Ⅱ boundany surfaces. Based on the above, the paper divided lower and middle Triassic into six third order seauences, which are namedas S The study area included Sichuan,Yunnan,Guizhou and Guangxi, the re, the strata of lower and middle Triassic are widely distributed and well dev eloped, it is one of important areas can be used to study the sequence division, correlation and framework of Triassic system. Therefore, the paper based on th e sequence stratigraphy theory, discussed in detail the characteristics of the s equence boundary surface which included uncomformity surface, lithologic-charac ter and facies change surface, karst surface and errosion surface, etc. Among th em, the uncomformlty surface, errosion surface and karst surface are type-Ⅰ bo undary surface, and lithologic-character and facies change surface are type-Ⅱ boundany surfaces. Based on the above, the paper divided lower and middle Triassic into six third order seauences, which are namedas S₁ to S₆, In the view of geologic time, it is known that early Triassic period prolonged 3.9 Ma, S₀ S₁,S₂ and S₃ prolonged 1.3 Ma respectively, and middle Tras sic period prolonged 6.1 Ma, S₄,S₅ and S₆ prolonged 2.03 Ma respectively. From the point of sequence boundary surface characteristics, S₂,S₃,S₄ and S₅ are type-Ⅰ sequences, and S₁ and S₆ are type-Ⅱ sequences. The n the paper correlated each sequence from the study area, and built the sequence stratigraphy framework of lower and middle Triassic which showed the evolution of patterns and their relationship of different system tract.1 to S₆, In the view of geologic time, it is known that early Triassic period prolonged 3.9 Ma, S₀ S₁,S₂ and S₃ prolonged 1.3 Ma respectively, and middle Tras sic period prolonged 6.1 Ma, S₄,S₅ and S₆ prolonged 2.03 Ma respectively. From the point of sequence boundary surface characteristics, S₂,S₃,S₄ a nd S₅ are type-Ⅰ sequences, and S₁ and S₆ are type-Ⅱ sequences. The n the paper correlated each sequence from the study area, and built the sequence stratigraphy framework of lower and middle Triassic which showed the evolution of patterns and their relationship of different system tract.
- Sichuan Yunnan Guizhou Guangxi region,
- lower and middle Triassic,
- sequence division and correlation,
- sequenc e stratigraphy framework

References

[1]	魏家庸. 贵州省贵阳地区的三叠纪地层格架[J] . 中国区域地质.1993，(2)：97～106
[2]	王立亭. 黔西南地区三叠纪地层沉积格架[J] . 贵阳地质.1996，l3(2)：129～ 134
[3]	牟传龙、吴应林. 中国南方三叠纪层序地层及海平面变化[J] . 岩相古地理.19 91.2：12～21
[4]	杨瑞东. 黔中、黔南下、中三叠统沉积相和层序地层[J] .沉积学报. 1993， 10(4)：24～29
[5]	许效松、刘宝00.gif (108 bytes)、赵玉光. 上扬子台地西缘二叠系—三叠系层序界面成因分析与盆地转换耦合[M] .北京：地质出版社.1997
[6]	王成善、陈洪德等. 中国南方二叠系层序地层与油气勘探目标评选. 成都：四川科学技术出版社.1998.5
[7]	Chen Hongde, Tian Jingchun et al. Permian sequence stratigraphy of t he Sich uan-Yunnan-Guizhou-Guangxi Region[J] . Scientia Geologica Sinica. 1997, 6(3) : 241～260
[8]	Tian Jingchun, Chen Hongde，et al. Sequence-based lithofacies-pal aeogeogra phy of Permian in the Sichuan-Yunnan-Guizhou-Guangxi Region[J] . Scientia Ge ologica Sinica. 1997, 6(3): 261～282
[9]	Chen Hongde, Qin Jianxiong et al. Permian sedimentary basins and reg ional s edimentary models in the Sichuan-Yunnan-Guizhou-Guangxi Region[J] . Scientia Geologica Sinica. 1997, 6(3): 283～291
[10]	Qin Jianxiong, Chen Hongde et al. Reef and gravity flow sediments o n Permi an slopes in the Sichuan-Yunnan-Guizhou-Guangxi Region[J] . Scientia Geologi ca Sinica. 1997, 6(3): 293～298
[11]	林茂炳，苟宗海.龙门山中段地质[M] .成都：成都科技大学出版社.1996.6
[12]	Ha B U, Hardenbol J， Vail P R. Mesozoic and cenozoic chronostratigr aphy an d oydes of sea-level change[A] . In: Wilgus C K ed. Sea-level Changes: anin tegrat ed Approach[J] . SEPM Special Publication. 1988, 42: 71～108

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Sequence Division,Correlation and Framework of Lower a nd Middle Triassic in Sichuan-Guizhou-Yunnan-Guangxi Region

1 State Key Laboratory of Oil and Gas Reservoir Geology and Ex ploitation,Institute of Sedimentany Geology, Chengdu University of Techn ology Chengdu 610059;

2 Hangzhou Institute of Petroleum Geology Hangzhou 310023

Received Date: 1999-06-30

Publish Date: 2000-06-10

Key words:

Abstract: The study area included Sichuan,Yunnan,Guizhou and Guangxi, there, the strata of lower and middle Triassic are widely distributed and well dev eloped, it is one of important areas can be used to study the sequence division, correlation and framework of Triassic system. Therefore, the paper based on th esequence stratigraphy theory, discussed in detail the characteristics of thes equence boundary surface which included uncomformity surface, lithologic-charac ter and facies change surface, karst surface and errosion surface, etc. Among them, the uncomformlty surface, errosion surface and karst surface are type-Ⅰ bo undary surface, and lithologic-character and facies change surface are type-Ⅱ boundany surfaces. Based on the above, the paper divided lower and middle Triassic into six third order seauences, which are namedas S The study area included Sichuan,Yunnan,Guizhou and Guangxi, the re, the strata of lower and middle Triassic are widely distributed and well dev eloped, it is one of important areas can be used to study the sequence division, correlation and framework of Triassic system. Therefore, the paper based on th e sequence stratigraphy theory, discussed in detail the characteristics of the s equence boundary surface which included uncomformity surface, lithologic-charac ter and facies change surface, karst surface and errosion surface, etc. Among th em, the uncomformlty surface, errosion surface and karst surface are type-Ⅰ bo undary surface, and lithologic-character and facies change surface are type-Ⅱ boundany surfaces. Based on the above, the paper divided lower and middle Triassic into six third order seauences, which are namedas S₁ to S₆, In the view of geologic time, it is known that early Triassic period prolonged 3.9 Ma, S₀ S₁,S₂ and S₃ prolonged 1.3 Ma respectively, and middle Tras sic period prolonged 6.1 Ma, S₄,S₅ and S₆ prolonged 2.03 Ma respectively. From the point of sequence boundary surface characteristics, S₂,S₃,S₄ and S₅ are type-Ⅰ sequences, and S₁ and S₆ are type-Ⅱ sequences. The n the paper correlated each sequence from the study area, and built the sequence stratigraphy framework of lower and middle Triassic which showed the evolution of patterns and their relationship of different system tract.1 to S₆, In the view of geologic time, it is known that early Triassic period prolonged 3.9 Ma, S₀ S₁,S₂ and S₃ prolonged 1.3 Ma respectively, and middle Tras sic period prolonged 6.1 Ma, S₄,S₅ and S₆ prolonged 2.03 Ma respectively. From the point of sequence boundary surface characteristics, S₂,S₃,S₄ a nd S₅ are type-Ⅰ sequences, and S₁ and S₆ are type-Ⅱ sequences. The n the paper correlated each sequence from the study area, and built the sequence stratigraphy framework of lower and middle Triassic which showed the evolution of patterns and their relationship of different system tract.

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Reference (12)

[1]	魏家庸. 贵州省贵阳地区的三叠纪地层格架[J] . 中国区域地质.1993，(2)：97～106
[2]	王立亭. 黔西南地区三叠纪地层沉积格架[J] . 贵阳地质.1996，l3(2)：129～ 134
[3]	牟传龙、吴应林. 中国南方三叠纪层序地层及海平面变化[J] . 岩相古地理.19 91.2：12～21
[4]	杨瑞东. 黔中、黔南下、中三叠统沉积相和层序地层[J] .沉积学报. 1993， 10(4)：24～29
[5]	许效松、刘宝00.gif (108 bytes)、赵玉光. 上扬子台地西缘二叠系—三叠系层序界面成因分析与盆地转换耦合[M] .北京：地质出版社.1997
[6]	王成善、陈洪德等. 中国南方二叠系层序地层与油气勘探目标评选. 成都：四川科学技术出版社.1998.5
[7]	Chen Hongde, Tian Jingchun et al. Permian sequence stratigraphy of t he Sich uan-Yunnan-Guizhou-Guangxi Region[J] . Scientia Geologica Sinica. 1997, 6(3) : 241～260
[8]	Tian Jingchun, Chen Hongde，et al. Sequence-based lithofacies-pal aeogeogra phy of Permian in the Sichuan-Yunnan-Guizhou-Guangxi Region[J] . Scientia Ge ologica Sinica. 1997, 6(3): 261～282
[9]	Chen Hongde, Qin Jianxiong et al. Permian sedimentary basins and reg ional s edimentary models in the Sichuan-Yunnan-Guizhou-Guangxi Region[J] . Scientia Geologica Sinica. 1997, 6(3): 283～291
[10]	Qin Jianxiong, Chen Hongde et al. Reef and gravity flow sediments o n Permi an slopes in the Sichuan-Yunnan-Guizhou-Guangxi Region[J] . Scientia Geologi ca Sinica. 1997, 6(3): 293～298
[11]	林茂炳，苟宗海.龙门山中段地质[M] .成都：成都科技大学出版社.1996.6
[12]	Ha B U, Hardenbol J， Vail P R. Mesozoic and cenozoic chronostratigr aphy an d oydes of sea-level change[A] . In: Wilgus C K ed. Sea-level Changes: anin tegrat ed Approach[J] . SEPM Special Publication. 1988, 42: 71～108

Sequence Division,Correlation and Framework of Lower a nd Middle Triassic in Sichuan-Guizhou-Yunnan-Guangxi Region

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