Paleoenvironmental reconstruction of organic-rich shale in the Hetang Formation of the Lower Yangtze Block: a case study of Well XY1

WU Xudong

doi:10.16028/j.1009-2722.2022.171

2023 Vol. 39, No. 4

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Article navigation > Marine Geology Frontiers > 2023 > 39(4): 46-56

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WU Xudong. Paleoenvironmental reconstruction of organic-rich shale in the Hetang Formation of the Lower Yangtze Block: a case study of Well XY1[J]. Marine Geology Frontiers, 2023, 39(4): 46-56. doi: 10.16028/j.1009-2722.2022.171

Citation:

WU Xudong. Paleoenvironmental reconstruction of organic-rich shale in the Hetang Formation of the Lower Yangtze Block: a case study of Well XY1[J]. Marine Geology Frontiers, 2023, 39(4): 46-56. doi: 10.16028/j.1009-2722.2022.171

Paleoenvironmental reconstruction of organic-rich shale in the Hetang Formation of the Lower Yangtze Block: a case study of Well XY1

WU Xudong^1,2,

1.
School of Resources, China University of Geosciences(Wuhan), Wuhan 430074, China
2.
Key Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences, Wuhan 430074, China

Received Date: 30 May 2022

Publish Date: 28 April 2023

Abstract

Abstract

The sedimentary background and environment can be studied effectively through the element geochemical characteristics. Taking the organic-rich shale of the Lower Cambrian Hetang Formation in XY1 in Xuancheng Area as an example, the structural background and sedimentary environment of the organic-rich shale of the Hetang Formation in Xuancheng area of the Lower Yangtze block were analyzed by using the element geochemical indexes. The results show that: the organic-rich shales were deposited in a stable continental margin under warm and humid climate, and the marine environment was anoxic to oxygen poor. The water body was highly productive. The paleoenvironmental parameters indicate that organic-rich shale of Hetang Formation is of continental slope facies deposited in deep water, and the water depth deepened first and then shallowed.
- element geochemistry /
- Lower Yangtze Block /
- Hetang Formation /
- organic-rich shale /
- paleoenvironment

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References

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