Interaction between seafloor cold seeps and adjacent hydrothermal activities in the Okinawa Trough

WU Nengyou; SUN Zhilei; LU Jianguo; CAI Feng; CAO Hong; GENG Wei; LUO Min; ZHANG Xilin; LI Qing; SHANG Luning; WANG Libo; ZHANG Xianrong; XU Cuiling; ZHAI Bin; LI Xin; GONG Jianming; HU Yu; LIN Genmei

doi:10.16562/j.cnki.0256-1492.2019070102

2019 Vol. 39, No. 5

Article Contents

Article navigation > Marine Geology & Quaternary Geology > 2019 > 39(5): 23-35

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WU Nengyou, SUN Zhilei, LU Jianguo, CAI Feng, CAO Hong, GENG Wei, LUO Min, ZHANG Xilin, LI Qing, SHANG Luning, WANG Libo, ZHANG Xianrong, XU Cuiling, ZHAI Bin, LI Xin, GONG Jianming, HU Yu, LIN Genmei. Interaction between seafloor cold seeps and adjacent hydrothermal activities in the Okinawa Trough[J]. Marine Geology & Quaternary Geology, 2019, 39(5): 23-35. doi: 10.16562/j.cnki.0256-1492.2019070102

Citation:

WU Nengyou, SUN Zhilei, LU Jianguo, CAI Feng, CAO Hong, GENG Wei, LUO Min, ZHANG Xilin, LI Qing, SHANG Luning, WANG Libo, ZHANG Xianrong, XU Cuiling, ZHAI Bin, LI Xin, GONG Jianming, HU Yu, LIN Genmei. Interaction between seafloor cold seeps and adjacent hydrothermal activities in the Okinawa Trough[J]. Marine Geology & Quaternary Geology, 2019, 39(5): 23-35. doi: 10.16562/j.cnki.0256-1492.2019070102

Interaction between seafloor cold seeps and adjacent hydrothermal activities in the Okinawa Trough

1.
Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China
2.
Laboratory for Marine Mineral Resources, Pilot National Laboratory for Marine Science and Technology, Qingdao 266071, China
3.
School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
4.
College of Marine Sciences Shanghai Ocean University, Shanghai 201306, China

Received Date: 01 July 2019

Revised Date: 16 July 2019

Publish Date: 25 October 2019

Abstract

Abstract

As the seafloor extreme environmental systems, both hydrothermal vents and cold seeps are the critical pathways between the lithosphere and exosphere (biosphere, hydrosphere and atmosphere) for transfer and exchange of materials and energies. There are significant differences, but also many similarities between the two systems. Recent investigations show that in some special tectonic units, hydrothermal vents and cold seeps are not isolated from each other, but instead there are some interactions or coupling relationships in terms of tectonic geology, biological ecology and element cyclicity. As a typical back-arc basin in the western Pacific Ocean, there are abundant hydrothermal vents and cold seeps developed in the Okinawa Trough (OT). Therefore, it has become an ideal natural laboratory for studying the two extreme environmental systems and their interactions. On the basis of literature researches and careful field case studies, we investigate the material diffusion process and biogeochemical process between cold seeps and hydrothermal vents adjacent to each other within the trough. A conceptual model is then established for the interactions between the fluids from the two extreme systems. Our results suggest that it would help to establish a more complete model of the coupling relationship between the two systems in the future, if the structural development characteristics, pore fluid evolution, biological communities, and mineral chemistry of the two deep-sea extreme environments are systematically analyzed. Moreover, it will help to reveal the interaction between them in biological ecology and finally establish a model of interaction between hydrothermal vents and cold seeps on the basin scale, so as to better understand the interaction process between cold seeps and hydrothermal systems and even the coupling of “flow-solid” in the Western Pacific Ocean or the whole Earth.
- hydrothermal activities /
- cold seeps /
- interaction /
- material and energy cycle /
- Okinawa Trough

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References

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