渤海东部旅大29-1构造沙二段砂砾岩锆石定年及物源示踪

赵梦; 杜晓峰; 王清斌; 冯冲; 庞小军; 李欢

doi:10.14027/j.issn.1000-0550.2018.149

ISSN 1000-0550 CN 62-1038/P

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渤海东部旅大29-1构造沙二段砂砾岩锆石定年及物源示踪

赵梦, 杜晓峰, 王清斌, 冯冲, 庞小军, 李欢

文章导航 > 沉积学报 > 2019 > 37(1): 62-71

赵梦, 杜晓峰, 王清斌, 冯冲, 庞小军, 李欢. 渤海东部旅大29-1构造沙二段砂砾岩锆石定年及物源示踪[J]. 沉积学报, 2019, 37(1): 62-71. doi: 10.14027/j.issn.1000-0550.2018.149

引用本文:

ZHAO Meng, DU XiaoFeng, WANG QingBin, FENG Chong, PANG XiaoJun, LI Huan. Detrital Zircon U-Pb Geochronology of the Es2 Sandstones of Lvda 29-1 Structure of the Eastern Bohai Sea, and Its Implication for Provenance[J]. Acta Sedimentologica Sinica, 2019, 37(1): 62-71. doi: 10.14027/j.issn.1000-0550.2018.149

Citation:

ZHAO Meng, DU XiaoFeng, WANG QingBin, FENG Chong, PANG XiaoJun, LI Huan. Detrital Zircon U-Pb Geochronology of the Es₂ Sandstones of Lvda 29-1 Structure of the Eastern Bohai Sea, and Its Implication for Provenance[J]. Acta Sedimentologica Sinica, 2019, 37(1): 62-71. doi: 10.14027/j.issn.1000-0550.2018.149

引用本文:

Citation:

渤海东部旅大29-1构造沙二段砂砾岩锆石定年及物源示踪

doi: 10.14027/j.issn.1000-0550.2018.149

中海石油(中国)有限公司天津分公司渤海石油研究院, 天津 300459

基金项目: 国家科技重大专项（2016ZX05024003）

详细信息

作者简介:
赵梦,女,1987年出生,博士,工程师,沉积学、地质学,E-mail:zhaomeng5@cnooc.com.cn

中图分类号: P597⁺.3

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文章访问数: 559
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Detrital Zircon U-Pb Geochronology of the Es₂ Sandstones of Lvda 29-1 Structure of the Eastern Bohai Sea, and Its Implication for Provenance

Bohai Oilfield Research Institute, China National Offshore Oil Corporation, Tianjin Branch, Tianjin 300459, China

Funds: National Science and Technology Major Project, No.2016ZX05024003

摘要

摘要: 为示踪辽东凹陷LD29-1构造沙二段（Es₂）砂岩沉积，对LD29-1-1、LD29-1-1Sa及LD29-1-2等3口井的沙二段砂岩6个岩屑样品进行了碎屑锆石U-Pb定年和锆石阴极发光（CL）图像分析。结果表明：LD29-1-1井样品中白垩纪（K）锆石含量高达41.2%，具有108 Ma峰值年龄，锆石柱状晶形完整，并且棱角明显；而LD29-1-1Sa及LD29-1-2井样品的中元古代（Pt₂）锆石含量高达74%~75%，中生代（Mz）锆石含量少，具有~1.5 Ga和~1.8 Ga双峰值特征，锆石晶体明显小于LD29-1-1井沉积物，并且晶形不完整、边缘均被磨圆。因此，认为LD29-1-1井沙二段砂岩为近源沉积，母岩为长兴岛凸起斜坡带中生界碎屑岩，而LD29-1-1Sa及LD29-1-2井沙二段砂体为远源沉积，母岩以辽东半岛西部复州地区广泛分布的中、上元古界沉积岩为主，在搬运至斜坡带时才混入少量中生界碎屑岩。
- 旅大29-1构造 /
- 物源示踪 /
- 碎屑锆石U-Pb年龄 /
- 中元古界 /
- 上元古界
Abstract: To trace the sedimentary source-to-sink systems of the Lvda 29-1 structure in the eastern Bohai Sea, six sandstone cuttings of the second Member of Shahejie Formation (Es₂) were collected from LD29-1-1, LD29-1-1Sa and LD29-1-2 for detrital zircon U-Pb dating and cathodoluminescence (CL) image analysis. The results showed that the sandstones of LD29-1-1 contained 41.2% Cretaceous (K) zircons and featured a 108 Ma peak, and the columnar crystals were characterized by sharp edges. The LD29-1-1Sa and LD29-1-2 sandstones contained 74%-75% Mesoproterozoic (Pt₂) zircons with peaks at ~1.5 Ga and ~1.8 Ga, and the broken crystals were well rounded. We concluded that the Es₂ sandstones of LD29-1-1 were near-source deposited, and the provenance was the Mesozoic sedimentary rocks along the slope of the Changxingdao Uplift; the Es₂ sandstones of LD29-1-1Sa and LD29-1-2 were distal from the source area and were dominated by the widespread Mesoproterozoic and Neoproterozoic sedimentary rocks exposed in Fuzhou on the western Liaodong Peninsula, with only a slight influence of Mesozoic sedimentary rocks from the slope of the Changxingdao Uplift.
- Lvda 29-1 Structure /
- provenance /
- detrital zircon U-Pb ages /
- Mesoproterozoic /
- Neoproterozoic

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[1]	范永超, 弓虎军. 六盘山东部黄土高原冰期—间冰期沉积物锆石U⁃Pb年龄物源研究 . 沉积学报, 2025, 43(1): 76-87. doi: 10.14027/j.issn.1000-0550.2023.004
[2]	代雅然, 陈建书, 张嘉玮, 李海波, 刘纬鹏, 王坤. 碎屑锆石U⁃Pb定年地层划分对比应用探讨以新元古界梵净山群“淘金河组”为例 . 沉积学报, 2024, 42(6): 2006-2019. doi: 10.14027/j.issn.1000-0550.2024.062
[3]	周瑞, 刘东娜, 董宪姝, 郝春生, 周安朝. 云岗盆地石盒子组地层时代厘定及其地质意义 . 沉积学报, 2024, 42(5): 1578-1591. doi: 10.14027/j.issn.1000-0550.2022.119
[4]	王峰, 刘新社, 赵伟波, 张雷, 虎建玲, 田景春, 陈蓉, 王集, 吴静仪, 肖云霄. 鄂尔多斯盆地南部二叠系砂岩碎屑锆石年代学特征及地质意义 . 沉积学报, 2023, 41(5): 1396-1413. doi: 10.14027/j.issn.1000-0550.2022.118
[5]	姜在兴, 徐杰, 刘桐, 马代鑫, 牟汉生, 孙守亮. 燕辽裂陷槽辽西坳陷中元古界黑色页岩沉积环境和生烃潜力 . 沉积学报, 2023, 41(6): 1830-1846. doi: 10.14027/j.issn.1000-0550.2023.129
[6]	林旭, 陈济鑫, 吴中海, 刘海金, 张洋. 现代河流碎屑磷灰石原位地球化学分析——对长江物源示踪研究的启示 . 沉积学报, 2022, 40(4): 861-870. doi: 10.14027/j.issn.1000-0550.2021.103
[7]	肖洪, 李美俊, 王铁冠, 冷筠滢. 中元古界沉积物中典型分子标志化合物及其地质意义 . 沉积学报, 2022, 40(2): 547-556. doi: 10.14027/j.issn.1000-0550.2021.145
[8]	李晓波, 王旖旎, 王晗. 辽宁兴城中元古界常州沟组砂岩中微生物成因沉积构造 . 沉积学报, 2020, 38(1): 32-45. doi: 10.14027/j.issn.1000-0550.2019.022
[9]	. 鄂尔多斯盆地乌审旗地区上古生界砂岩碎屑锆石U-Pb年龄及其地质意义 . 沉积学报, 2014, 32(4): 643-653.
[10]	. 长江上游水系沉积物锶—钕同位素组成及物源示踪 . 沉积学报, 2014, 32(2): 290-295.

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渤海东部旅大29-1构造沙二段砂砾岩锆石定年及物源示踪

doi: 10.14027/j.issn.1000-0550.2018.149

中海石油(中国)有限公司天津分公司渤海石油研究院, 天津 300459

基金项目: 国家科技重大专项（2016ZX05024003）

作者简介:
赵梦,女,1987年出生,博士,工程师,沉积学、地质学,E-mail:zhaomeng5@cnooc.com.cn

收稿日期: 2018-04-23
修回日期: 2018-06-13
刊出日期: 2019-02-10

中图分类号: P597⁺.3

关键词:

摘要: 为示踪辽东凹陷LD29-1构造沙二段（Es₂）砂岩沉积，对LD29-1-1、LD29-1-1Sa及LD29-1-2等3口井的沙二段砂岩6个岩屑样品进行了碎屑锆石U-Pb定年和锆石阴极发光（CL）图像分析。结果表明：LD29-1-1井样品中白垩纪（K）锆石含量高达41.2%，具有108 Ma峰值年龄，锆石柱状晶形完整，并且棱角明显；而LD29-1-1Sa及LD29-1-2井样品的中元古代（Pt₂）锆石含量高达74%~75%，中生代（Mz）锆石含量少，具有~1.5 Ga和~1.8 Ga双峰值特征，锆石晶体明显小于LD29-1-1井沉积物，并且晶形不完整、边缘均被磨圆。因此，认为LD29-1-1井沙二段砂岩为近源沉积，母岩为长兴岛凸起斜坡带中生界碎屑岩，而LD29-1-1Sa及LD29-1-2井沙二段砂体为远源沉积，母岩以辽东半岛西部复州地区广泛分布的中、上元古界沉积岩为主，在搬运至斜坡带时才混入少量中生界碎屑岩。

English Abstract

Detrital Zircon U-Pb Geochronology of the Es₂ Sandstones of Lvda 29-1 Structure of the Eastern Bohai Sea, and Its Implication for Provenance

Bohai Oilfield Research Institute, China National Offshore Oil Corporation, Tianjin Branch, Tianjin 300459, China

Funds: National Science and Technology Major Project, No.2016ZX05024003

Received Date: 2018-04-23
Rev Recd Date: 2018-06-13
Publish Date: 2019-02-10

Keywords:

Abstract: To trace the sedimentary source-to-sink systems of the Lvda 29-1 structure in the eastern Bohai Sea, six sandstone cuttings of the second Member of Shahejie Formation (Es₂) were collected from LD29-1-1, LD29-1-1Sa and LD29-1-2 for detrital zircon U-Pb dating and cathodoluminescence (CL) image analysis. The results showed that the sandstones of LD29-1-1 contained 41.2% Cretaceous (K) zircons and featured a 108 Ma peak, and the columnar crystals were characterized by sharp edges. The LD29-1-1Sa and LD29-1-2 sandstones contained 74%-75% Mesoproterozoic (Pt₂) zircons with peaks at ~1.5 Ga and ~1.8 Ga, and the broken crystals were well rounded. We concluded that the Es₂ sandstones of LD29-1-1 were near-source deposited, and the provenance was the Mesozoic sedimentary rocks along the slope of the Changxingdao Uplift; the Es₂ sandstones of LD29-1-1Sa and LD29-1-2 were distal from the source area and were dominated by the widespread Mesoproterozoic and Neoproterozoic sedimentary rocks exposed in Fuzhou on the western Liaodong Peninsula, with only a slight influence of Mesozoic sedimentary rocks from the slope of the Changxingdao Uplift.

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渤海东部旅大29-1构造沙二段砂砾岩锆石定年及物源示踪

doi: 10.14027/j.issn.1000-0550.2018.149

作者简介:
赵梦,女,1987年出生,博士,工程师,沉积学、地质学,E-mail:zhaomeng5@cnooc.com.cn

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Detrital Zircon U-Pb Geochronology of the Es₂ Sandstones of Lvda 29-1 Structure of the Eastern Bohai Sea, and Its Implication for Provenance

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渤海东部旅大29-1构造沙二段砂砾岩锆石定年及物源示踪

doi: 10.14027/j.issn.1000-0550.2018.149

中海石油(中国)有限公司天津分公司渤海石油研究院, 天津 300459

作者简介:
赵梦,女,1987年出生,博士,工程师,沉积学、地质学,E-mail:zhaomeng5@cnooc.com.cn

English Abstract

Detrital Zircon U-Pb Geochronology of the Es₂ Sandstones of Lvda 29-1 Structure of the Eastern Bohai Sea, and Its Implication for Provenance

Bohai Oilfield Research Institute, China National Offshore Oil Corporation, Tianjin Branch, Tianjin 300459, China

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渤海东部旅大29-1构造沙二段砂砾岩锆石定年及物源示踪

doi: 10.14027/j.issn.1000-0550.2018.149

作者简介: 赵梦,女,1987年出生,博士,工程师,沉积学、地质学,E-mail:zhaomeng5@cnooc.com.cn

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Detrital Zircon U-Pb Geochronology of the Es2 Sandstones of Lvda 29-1 Structure of the Eastern Bohai Sea, and Its Implication for Provenance

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渤海东部旅大29-1构造沙二段砂砾岩锆石定年及物源示踪

doi: 10.14027/j.issn.1000-0550.2018.149

中海石油(中国)有限公司天津分公司渤海石油研究院, 天津 300459

作者简介: 赵梦,女,1987年出生,博士,工程师,沉积学、地质学,E-mail:zhaomeng5@cnooc.com.cn

English Abstract

Detrital Zircon U-Pb Geochronology of the Es2 Sandstones of Lvda 29-1 Structure of the Eastern Bohai Sea, and Its Implication for Provenance

Bohai Oilfield Research Institute, China National Offshore Oil Corporation, Tianjin Branch, Tianjin 300459, China

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作者简介:
赵梦,女,1987年出生,博士,工程师,沉积学、地质学,E-mail:zhaomeng5@cnooc.com.cn

Detrital Zircon U-Pb Geochronology of the Es₂ Sandstones of Lvda 29-1 Structure of the Eastern Bohai Sea, and Its Implication for Provenance

作者简介:
赵梦,女,1987年出生,博士,工程师,沉积学、地质学,E-mail:zhaomeng5@cnooc.com.cn

Detrital Zircon U-Pb Geochronology of the Es₂ Sandstones of Lvda 29-1 Structure of the Eastern Bohai Sea, and Its Implication for Provenance