The geophysical characteristics of hydrothermal plumes at the Logatchev vent field, Mid-Atlantic Ridge

TANG Yong; HE Zhuan; WU Zhaocai; LI Mingbi

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TANG Yong, HE Zhuan, WU Zhaocai, LI Mingbi. The geophysical characteristics of hydrothermal plumes at the Logatchev vent field, Mid-Atlantic Ridge[J]. Haiyang Xuebao, 2012, 34(1): 120-126.

Citation:

TANG Yong, HE Zhuan, WU Zhaocai, LI Mingbi. The geophysical characteristics of hydrothermal plumes at the Logatchev vent field, Mid-Atlantic Ridge[J]. Haiyang Xuebao, 2012, 34(1): 120-126.

TANG Yong, HE Zhuan, WU Zhaocai, LI Mingbi. The geophysical characteristics of hydrothermal plumes at the Logatchev vent field, Mid-Atlantic Ridge[J]. Haiyang Xuebao, 2012, 34(1): 120-126.

Citation:

TANG Yong, HE Zhuan, WU Zhaocai, LI Mingbi. The geophysical characteristics of hydrothermal plumes at the Logatchev vent field, Mid-Atlantic Ridge[J]. Haiyang Xuebao, 2012, 34(1): 120-126.

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The geophysical characteristics of hydrothermal plumes at the Logatchev vent field, Mid-Atlantic Ridge

1.
Naturd Resources School, China University of Geosciences, Wuhan 430074, China;Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
2.
The Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
3.
Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

Received Date: 2010-12-23
Rev Recd Date: 2011-04-13

Abstract

Abstract

Magnetic and multibeam data were collected from DAYANG No.1 first world cruise at Mid Atlantic Ridge.The interpretation of magnetic anomalies and bathymetric data shows the geophysical characteristics of hydrothermal plumes at the Logatchev vent field. Logatchev vent site is situated on the eastern inner flank of the rift valley and between the high value of positive and negative anomalies. NWW-SEE and NS trending fault not only control basement depth and upwelling-sag,but also dose the distribution of ultramafic rock and heat source. It is suggest that the Logatchev hydrothermal field is associated with ultramafic-hosted, off-axis location with detachment faulting, oceanic core complex, abundant gravitational landslides.
- Logatchev vent,
- magnetic anomalies,
- magnetosphere,
- oceanic core complex,
- gravitational landslides

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References(18)

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