Characteristics of submarine landslides and their implications for petroleum geology

ZHANG Yunshan; WU Nan; JIA Yonggang; WEI Jiangong

doi:10.16562/j.cnki.0256-1492.2022052001

Marine Geology & Quaternary Geology > 2023 > 43(1): 94-104. > DOI: 10.16562/j.cnki.0256-1492.2022052001

ZHANG Yunshan，WU Nan，JIA Yonggang，et al. Characteristics of submarine landslides and their implications for petroleum geology[J]. Marine Geology & Quaternary Geology，2023，43(1)：94-104. DOI: 10.16562/j.cnki.0256-1492.2022052001

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Characteristics of submarine landslides and their implications for petroleum geology

ZHANG Yunshan^1,2,,
WU Nan³,
JIA Yonggang^1,4, ,,
WEI Jiangong^5,6, ,

1.
Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering, Ocean University of China, Qingdao 266100, China
2.
Sanya Ocean Research Institute, Ocean University of China, Sanya 572000, China
3.
State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
4.
Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
5.
Sanya Institute of South China Sea Geology, Guangzhou Marine Geological Survey, China Geological Survey, Sanya 572000, China
6.
Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China

More Information

Received Date: May 19, 2022
Revised Date: June 19, 2022
Available Online: February 20, 2023

Graphical Abstract

Abstract

Abstract

Submarine landslide is a type of sediment transport body that occurs widely in the regions from outer continental shelf to upper continental slope and to deep-sea plain due to gravity instability. It is an important transport process of seafloor sediments. Its strong power of erosion could transport a huge amount of sediments from continental shelf to deep sea. A landslide event has an important impact on submarine hydrocarbon accumulation and distribution because of its special internal structure. This mini-review summarizes studies on submarine landslide and its role in shaping and re-working marine hydrocarbon resources, specified the characteristics in spatial distribution and vertical structure of submarine landslides, and revealed preliminarily the petrophysical characteristics of landslides. Based on the above-mentioned works, the roles of submarine landslides in both positive and negative manner, on submarine oil and gas reservoirs was analyzed in terms of provenance, reservoir, caprock, and variations in seafloor temperature and pressure. Finally, combined with the current research progresses, we pointed out that the future direction of research shall focus on the microscale characteristics of submarine landslides, on the relationship between submarine landslides and submarine oil and gas reservoirs, and on the prevention in submarine-landslide–risk regions against possible disaster from trigging during offshore operation of oil and gas development.
- submarine landslide,
- structural features,
- petrophysical characteristic,
- submarine hydrocarbon

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References (74)

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