伊犁盆地南缘中侏罗统西山窑组沉积环境讨论

吴斌; 朱莉娟; 侯明才; 晁晖; 江文剑; 石鑫; 罗宏谓; 曹海洋; 何佳伟

doi:10.14027/j.issn.1000-0550.2018.116

ISSN 1000-0550 CN 62-1038/P

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伊犁盆地南缘中侏罗统西山窑组沉积环境讨论

吴斌, 朱莉娟, 侯明才, 晁晖, 江文剑, 石鑫, 罗宏谓, 曹海洋, 何佳伟

文章导航 > 沉积学报 > 2018 > 36(3): 456-467

吴斌, 朱莉娟, 侯明才, 晁晖, 江文剑, 石鑫, 罗宏谓, 曹海洋, 何佳伟. 伊犁盆地南缘中侏罗统西山窑组沉积环境讨论[J]. 沉积学报, 2018, 36(3): 456-467. doi: 10.14027/j.issn.1000-0550.2018.116

引用本文:

WU Bin, ZHU LiJuan, HOU MingCai, CHAO Hui, JIANG WenJian, SHI Xin, LUO HongWei, CAO HaiYang, HE JiaWei. Discussion on the Sedimentary Environment of the Middle Jurassic Xishanyao Formation in theSouthern Margin of the Yili Basin[J]. Acta Sedimentologica Sinica, 2018, 36(3): 456-467. doi: 10.14027/j.issn.1000-0550.2018.116

Citation:

WU Bin, ZHU LiJuan, HOU MingCai, CHAO Hui, JIANG WenJian, SHI Xin, LUO HongWei, CAO HaiYang, HE JiaWei. Discussion on the Sedimentary Environment of the Middle Jurassic Xishanyao Formation in theSouthern Margin of the Yili Basin[J]. Acta Sedimentologica Sinica, 2018, 36(3): 456-467. doi: 10.14027/j.issn.1000-0550.2018.116

引用本文:

Citation:

WU Bin, ZHU LiJuan, HOU MingCai, CHAO Hui, JIANG WenJian, SHI Xin, LUO HongWei, CAO HaiYang, HE JiaWei. Discussion on the Sedimentary Environment of the Middle Jurassic Xishanyao Formation in theSouthern Margin of the Yili Basin[J]. Acta Sedimentologica Sinica, 2018, 36(3): 456-467. doi: 10.14027/j.issn.1000-0550.2018.116

伊犁盆地南缘中侏罗统西山窑组沉积环境讨论

doi: 10.14027/j.issn.1000-0550.2018.116

吴斌^1,2,
朱莉娟³,
侯明才^1,2,,
晁晖^1,2,
江文剑⁴,
石鑫^1,2,
罗宏谓^1,2,
曹海洋^1,2,
何佳伟^1,2

1.
油气藏地质及开发工程国家重点实验室(成都理工大学), 成都 610059;
2.
成都理工大学沉积地质研究院, 成都 610059;
3.
江西省核工业地质调查院(江西省核工业地质局266大队), 南昌 330038;
4.
东华理工大学地球科学学院, 南昌 330013

基金项目: 国家重点基础研究发展计划（"973"计划）项目（2015CB453001）

详细信息

作者简介:
吴斌,男,1992年出生,硕士研究生,层序地层与岩相古地理,E-mail:282526094@qq.com

通讯作者:
侯明才,男,教授,E-mail:houmc@cdut.edu.cn

中图分类号: P512.2

计量

文章访问数: 516
HTML全文浏览量: 8
PDF下载量: 448
被引次数: 0

Discussion on the Sedimentary Environment of the Middle Jurassic Xishanyao Formation in theSouthern Margin of the Yili Basin

WU Bin^1,2,
ZHU LiJuan³,
HOU MingCai^{1,2
,},
CHAO Hui^1,2,
JIANG WenJian⁴,
SHI Xin^1,2,
LUO HongWei^1,2,
CAO HaiYang^1,2,
HE JiaWei^1,2

1.
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China;
2.
Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China;
3.
Nuclear Industry Geological Bureau of Jiangxi Province(Brigade 266), Nanchang 330038, China;
4.
School of Earth Science, East China University of Technology, Nanchang 330013, China

Funds: National Key Basic Research Program of China(973 Program), No.2015CB453001

摘要

摘要: 伊犁盆地南缘是中国重要的煤和砂岩型铀矿富集区，中侏罗统西山窑组是主要的赋矿层位。基于对野外剖面的实测、室内岩矿鉴定、碎屑粒度统计分析和钻测井等资料的解释，明确了伊犁盆地南缘中侏罗统西山窑组的沉积环境类型、砂体成因、展布及其煤系地层分布的耦合关系。研究结果表明：伊犁盆地南缘西山窑组为曲流河三角洲平原-前缘沉积环境，分流河道微相的砂岩以高含煤屑或碳质、中粗结构、富岩屑和长石、分选性较差、中等磨圆为特征，具有较低的成分成熟度和结构成熟度。粒度曲线以三段式为主，显示了三角洲平原水道跳跃、滚动和悬浮搬运的特征。电阻率曲线纵向上表现为粒度向上变粗的逆粒序。砂体厚度多在20~40 m之间，砂地比值在0.3~0.8之间。分流河道砂岩与分流河道间沼泽相的煤层或泥炭在平面上毗邻、剖面上交互产出，古植物茎干化石和植物印痕多处存在。曲流河三角洲沉积环境和三角洲砂岩与煤系地层共生耦合关系的提出，对伊犁盆地南缘煤铀富集规律的深入研究提供了沉积学支持。
- 伊犁盆地南缘 /
- 中侏罗统 /
- 西山窑组 /
- 沉积环境 /
- 曲流河三角洲
Abstract: The southern margin of the Yili Basin is an important area with enrichment of coalmine and sandstone-type uranium deposits in China and the Middle Jurassic Xishanyao Formation is the main ore-bearing strata. Based on field geological section, indoor microscopical identification, grain size analysis, and drilling data, the sedimentary environment types, genesis and distribution of sand bodies, and its relation with coal-bearing stratum distributions in the Middle Jurassic Xishanyao Formation at the southern margin of the Yili Basin were identified. Results show that the Xishanyao Formation on the southern margin of the Yili Basin is dominated by meandering-stream delta plain-delta front. The sandstones of the distributary channel microfacies are highly coal-bearing or carbonaceous, medium-coarse size, rich in debris and feldspar, poor selection and moderate roundness, with relatively low compositional maturity and structural maturity. The three-stage particle-size curve is the main feature, showing the characteristics of the jumping, rolling, and suspension transport in the delta plains. The resistivity curve appears in the longitudinal direction as an inverse grain size with a coarser grain size. Moreover, the thickness of the sand body is mostly between 20-40 m, with the sand ratio between 0.3-0.8. The coal seam or peat in the marsh facies between the distributary channel sandstone and the distributary river channel is adjacent to each other in the plane and alternant vertically. There are many fossils of ancient plant stems and plant imprints. The symbiotic coupling relationship between the depositional environment of the meander river delta, the delta sandstone and the coal-bearing strata has provided sedimentary support for the in-depth study of coal and uranium enrichment in the southern margin of the Yili Basin.
- southern margin of the Yili Basin /
- middle Jurassic /
- Xishanyao Formation /
- sedimentary environment /
- meandering river delta

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伊犁盆地南缘中侏罗统西山窑组沉积环境讨论

doi: 10.14027/j.issn.1000-0550.2018.116

1. 油气藏地质及开发工程国家重点实验室(成都理工大学), 成都 610059;

2. 成都理工大学沉积地质研究院, 成都 610059;

3. 江西省核工业地质调查院(江西省核工业地质局266大队), 南昌 330038;

4. 东华理工大学地球科学学院, 南昌 330013

基金项目: 国家重点基础研究发展计划（"973"计划）项目（2015CB453001）

作者简介:
吴斌,男,1992年出生,硕士研究生,层序地层与岩相古地理,E-mail:282526094@qq.com

通讯作者: 侯明才,男,教授,E-mail:houmc@cdut.edu.cn

收稿日期: 2018-01-03
修回日期: 2018-03-13
刊出日期: 2018-06-10

中图分类号: P512.2

关键词:

摘要: 伊犁盆地南缘是中国重要的煤和砂岩型铀矿富集区，中侏罗统西山窑组是主要的赋矿层位。基于对野外剖面的实测、室内岩矿鉴定、碎屑粒度统计分析和钻测井等资料的解释，明确了伊犁盆地南缘中侏罗统西山窑组的沉积环境类型、砂体成因、展布及其煤系地层分布的耦合关系。研究结果表明：伊犁盆地南缘西山窑组为曲流河三角洲平原-前缘沉积环境，分流河道微相的砂岩以高含煤屑或碳质、中粗结构、富岩屑和长石、分选性较差、中等磨圆为特征，具有较低的成分成熟度和结构成熟度。粒度曲线以三段式为主，显示了三角洲平原水道跳跃、滚动和悬浮搬运的特征。电阻率曲线纵向上表现为粒度向上变粗的逆粒序。砂体厚度多在20~40 m之间，砂地比值在0.3~0.8之间。分流河道砂岩与分流河道间沼泽相的煤层或泥炭在平面上毗邻、剖面上交互产出，古植物茎干化石和植物印痕多处存在。曲流河三角洲沉积环境和三角洲砂岩与煤系地层共生耦合关系的提出，对伊犁盆地南缘煤铀富集规律的深入研究提供了沉积学支持。

English Abstract

Discussion on the Sedimentary Environment of the Middle Jurassic Xishanyao Formation in theSouthern Margin of the Yili Basin

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China;

2. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China;

3. Nuclear Industry Geological Bureau of Jiangxi Province(Brigade 266), Nanchang 330038, China;

4. School of Earth Science, East China University of Technology, Nanchang 330013, China

Funds: National Key Basic Research Program of China(973 Program), No.2015CB453001

Received Date: 2018-01-03
Rev Recd Date: 2018-03-13
Publish Date: 2018-06-10

Keywords:

Abstract: The southern margin of the Yili Basin is an important area with enrichment of coalmine and sandstone-type uranium deposits in China and the Middle Jurassic Xishanyao Formation is the main ore-bearing strata. Based on field geological section, indoor microscopical identification, grain size analysis, and drilling data, the sedimentary environment types, genesis and distribution of sand bodies, and its relation with coal-bearing stratum distributions in the Middle Jurassic Xishanyao Formation at the southern margin of the Yili Basin were identified. Results show that the Xishanyao Formation on the southern margin of the Yili Basin is dominated by meandering-stream delta plain-delta front. The sandstones of the distributary channel microfacies are highly coal-bearing or carbonaceous, medium-coarse size, rich in debris and feldspar, poor selection and moderate roundness, with relatively low compositional maturity and structural maturity. The three-stage particle-size curve is the main feature, showing the characteristics of the jumping, rolling, and suspension transport in the delta plains. The resistivity curve appears in the longitudinal direction as an inverse grain size with a coarser grain size. Moreover, the thickness of the sand body is mostly between 20-40 m, with the sand ratio between 0.3-0.8. The coal seam or peat in the marsh facies between the distributary channel sandstone and the distributary river channel is adjacent to each other in the plane and alternant vertically. There are many fossils of ancient plant stems and plant imprints. The symbiotic coupling relationship between the depositional environment of the meander river delta, the delta sandstone and the coal-bearing strata has provided sedimentary support for the in-depth study of coal and uranium enrichment in the southern margin of the Yili Basin.

引用本文:

Citation:

WU Bin, ZHU LiJuan, HOU MingCai, CHAO Hui, JIANG WenJian, SHI Xin, LUO HongWei, CAO HaiYang, HE JiaWei. Discussion on the Sedimentary Environment of the Middle Jurassic Xishanyao Formation in theSouthern Margin of the Yili Basin[J]. Acta Sedimentologica Sinica, 2018, 36(3): 456-467. doi: 10.14027/j.issn.1000-0550.2018.116

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伊犁盆地南缘中侏罗统西山窑组沉积环境讨论

doi: 10.14027/j.issn.1000-0550.2018.116

作者简介:
吴斌,男,1992年出生,硕士研究生,层序地层与岩相古地理,E-mail:282526094@qq.com

通讯作者:
侯明才,男,教授,E-mail:houmc@cdut.edu.cn

计量

Discussion on the Sedimentary Environment of the Middle Jurassic Xishanyao Formation in theSouthern Margin of the Yili Basin

计量

目录

伊犁盆地南缘中侏罗统西山窑组沉积环境讨论

doi: 10.14027/j.issn.1000-0550.2018.116

1. 油气藏地质及开发工程国家重点实验室(成都理工大学), 成都 610059;

2. 成都理工大学沉积地质研究院, 成都 610059;

3. 江西省核工业地质调查院(江西省核工业地质局266大队), 南昌 330038;

4. 东华理工大学地球科学学院, 南昌 330013

作者简介:
吴斌,男,1992年出生,硕士研究生,层序地层与岩相古地理,E-mail:282526094@qq.com

通讯作者: 侯明才,男,教授,E-mail:houmc@cdut.edu.cn

English Abstract

Discussion on the Sedimentary Environment of the Middle Jurassic Xishanyao Formation in theSouthern Margin of the Yili Basin

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伊犁盆地南缘中侏罗统西山窑组沉积环境讨论

doi: 10.14027/j.issn.1000-0550.2018.116

作者简介: 吴斌,男,1992年出生,硕士研究生,层序地层与岩相古地理,E-mail:282526094@qq.com

通讯作者: 侯明才,男,教授,E-mail:houmc@cdut.edu.cn

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Discussion on the Sedimentary Environment of the Middle Jurassic Xishanyao Formation in theSouthern Margin of the Yili Basin

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伊犁盆地南缘中侏罗统西山窑组沉积环境讨论

doi: 10.14027/j.issn.1000-0550.2018.116

1. 油气藏地质及开发工程国家重点实验室(成都理工大学), 成都 610059; 2. 成都理工大学沉积地质研究院, 成都 610059; 3. 江西省核工业地质调查院(江西省核工业地质局266大队), 南昌 330038; 4. 东华理工大学地球科学学院, 南昌 330013

作者简介: 吴斌,男,1992年出生,硕士研究生,层序地层与岩相古地理,E-mail:282526094@qq.com

通讯作者: 侯明才,男,教授,E-mail:houmc@cdut.edu.cn

English Abstract

Discussion on the Sedimentary Environment of the Middle Jurassic Xishanyao Formation in theSouthern Margin of the Yili Basin

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作者简介:
吴斌,男,1992年出生,硕士研究生,层序地层与岩相古地理,E-mail:282526094@qq.com

通讯作者:
侯明才,男,教授,E-mail:houmc@cdut.edu.cn

1. 油气藏地质及开发工程国家重点实验室(成都理工大学), 成都 610059;

2. 成都理工大学沉积地质研究院, 成都 610059;

3. 江西省核工业地质调查院(江西省核工业地质局266大队), 南昌 330038;

4. 东华理工大学地球科学学院, 南昌 330013

作者简介:
吴斌,男,1992年出生,硕士研究生,层序地层与岩相古地理,E-mail:282526094@qq.com