地形环境对海底热液硫化物矿体内部流体循环的影响

李怀明; 翟世奎; 于增慧; 初凤友; 陶春辉

Volume 33 Issue 4

Jul. 2008

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Article Navigation > Earth Science > 2008 > 33(4): 538-546

LI Huai-ming, ZHAI Shi-kui, YU Zeng-hui, CHU Feng-you, TAO Chun-hui, 2008. Influence of Topography on the Hydrothermal Circulation within the Hydrothermal Sulfide Deposit. Earth Science, 33(4): 538-546.

Citation:

LI Huai-ming, ZHAI Shi-kui, YU Zeng-hui, CHU Feng-you, TAO Chun-hui, 2008. Influence of Topography on the Hydrothermal Circulation within the Hydrothermal Sulfide Deposit. Earth Science, 33(4): 538-546.

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Influence of Topography on the Hydrothermal Circulation within the Hydrothermal Sulfide Deposit

LI Huai-ming^{1, 2, 3
,},
ZHAI Shi-kui³,
YU Zeng-hui³,
CHU Feng-you^{1, 2},
TAO Chun-hui^{1, 2}

1.
Key Laboratoty of Submarine Geosciences, State Oceanic A dministration, Hangz hou 310012, China
2.
Second Institute of Oceanography, State Oceanic A dministration, Hangz hou 310012, China
3.
Department of Marine Geo-science, Ocean University of China, Qingdao 266100, China

Received Date: 2007-10-25
Publish Date: 2008-07-25

Abstract

Abstract

Based on the three-layer model of seafloor hydrothermal sulfide deposit, the deposit models with diverse topography have been built.With numerical approach, the distribution of inner thermal and flow fields of the large hydrothermal sulfide deposit model featuring sloping crust and relief top is simulated to discuss the effect of the different relief on the formation processes of the hydrothermal sulfide deposit.The results indicate: (1) the sloping seafloor has a limited influence on the distribution of thermal and flow fields within the hydrothermal sulfide deposit. (2) The relief top is one of the dominating factors that control distribution of the thermal and flow fields within the hydrothermal sulfide deposit. (3) Hydrothermal sulfides precipitate and accumulate rapidly near the region of focused venting, thus easily forming high relief.As the continuous rising of this high relief, the distribution mode of the thermal and flow fields gradually changes, which causes the hydrothermal venting to gradually cease or redirect.
- seafloor hydrothermal activity,
- sulfide deposit,
- hydrothermal circulation,
- topography

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References(36)

References

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Influence of Topography on the Hydrothermal Circulation within the Hydrothermal Sulfide Deposit

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