Geochemical characteristics and controlling factors of surface sediments in Jiaozhou Bay

WANG Qing; WANG Jia; DONG Jie; ZOU Liang; WANG Rujie; XIE Yongjian; XU Meijun; XIE Xiaodong; ZHOU Xiaoxue

doi:10.16028/j.1009-2722.2023.130

2023 Vol. 39, No. 8

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Article navigation > Marine Geology Frontiers > 2023 > 39(8): 8-19

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WANG Qing, WANG Jia, DONG Jie, ZOU Liang, WANG Rujie, XIE Yongjian, XU Meijun, XIE Xiaodong, ZHOU Xiaoxue. Geochemical characteristics and controlling factors of surface sediments in Jiaozhou Bay[J]. Marine Geology Frontiers, 2023, 39(8): 8-19. doi: 10.16028/j.1009-2722.2023.130

Citation:

WANG Qing, WANG Jia, DONG Jie, ZOU Liang, WANG Rujie, XIE Yongjian, XU Meijun, XIE Xiaodong, ZHOU Xiaoxue. Geochemical characteristics and controlling factors of surface sediments in Jiaozhou Bay[J]. Marine Geology Frontiers, 2023, 39(8): 8-19. doi: 10.16028/j.1009-2722.2023.130

Geochemical characteristics and controlling factors of surface sediments in Jiaozhou Bay

1.
Key Laboratory of Urban Geology and Underground Space Resources, Shandong Provincial Bureau of Geology and Mineral Resources, Qingdao 266100, China
2.
Qingdao Geo-engineering Surveying Institute (Qingdao Geological Exploration and Development Bureau)，Qingdao 266100, China
3.
Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266237, China

More Information

Corresponding author: DONG Jie, 13853286966@163.com

Received Date: 15 May 2023

Publish Date: 28 August 2023

Abstract

Abstract

Based on the correlation analysis and factor analysis of grain size and geochemical compositions of 150 surface sediments from Jiaozhou Bay, Qingdao, East China, the spatial distribution, element correlation, and element combination were studied, and the sedimentary environmental implication of geochemical characteristics of the in-bay sediments was revealed. The results show that the surface sediments are rich in types, mainly sandy silts in Jiaozhou Bay. The major elements of the sediments are predominated by SiO₂ and Al₂O₃, and the high value area of SiO₂ is mainly distributed in the northeast and west-central areas, and the content of Al₂O₃ is higher in the estuaries of the north and northeast of the bay and near the coast, indicating that the sediments are mainly terrigenous detrital sediments. The highest trace elements is V, followed by Li and Ni, and the content distribution is similar to that of Al₂O₃. Except for CaO, the spatial variation coefficients of the elements in the bay are small, indicating that the distribution of the elements was relatively uniform. The results of the correlation analysis and factor analysis suggest that the grain size is the main factor controlling the distribution of most major and trace elements (Al₂O₃, MgO, CaO, TiO₂, MnO, Fe₂O₃, Ni, Co, Li, W, V, etc.) in the bay. The contents of CaO and P₂O₅ are mainly affected by weathering and human activities.
- Jiaozhou Bay /
- surface sediment /
- grain size /
- geochemistry /
- major element /
- trace element

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References

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