Petrophysical characteristics of rocks and sulfides from the SWIR hydrothermal field

Study of petrophysical properties of rocks in seafioor hydrothermal fields has great significance for inves- tigation of seafloor hydrothermal activities, especially for polymetallic sulfides prospecting. In the present study, based on the current experimental conditions, we conducted systematic exp...

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Bibliographic Details
Published in:	Acta oceanologica Sinica Vol. 32; no. 12; pp. 118 - 125
Main Authors:	Tao, Chunhui, Wu, Tao, Jin, Xiaobing, Dou, Bingjun, Li, Huaiming, Zhou, Jianping
Format:	Journal Article
Language:	English
Published:	Berlin/Heidelberg Springer Berlin Heidelberg 01-12-2013 Springer Nature B.V Key Laboratory of Submarine Geosciences, State 0ceanic Administration, Hangzhou 310012, China%Zhejiang Dacheng Construction Group Co. Ltd, Hangzhou 310012, China
Subjects:	Acoustic waves Basalt Climatology Data collection Earth and Environmental Science Earth Sciences Ecology Electrical resistivity Engineering Fluid Dynamics Environmental Chemistry Exploration Hydrothermal activity Hydrothermal alteration Hydrothermal fields Magnetic permeability Magnetic susceptibility Marine Marine & Freshwater Sciences Ocean floor Oceanography Physical characteristics Physical properties Porosity Rock Rock properties Rocks Sulfides Wave velocity 多金属硫化物实验条件岩石物理性质岩石物理特性海底热液活动热液区热液硫化物短波红外 China ISW, Indian Ocean, Southwest Indian Ridge rock physical properties SWIR polymetallic sulfides hydrothermal alteration
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Summary:	Study of petrophysical properties of rocks in seafioor hydrothermal fields has great significance for inves- tigation of seafloor hydrothermal activities, especially for polymetallic sulfides prospecting. In the present study, based on the current experimental conditions, we conducted systematic experiments to measure the magnetic susceptibility, electrical resistivity, porosity, density, as well as acoustic wave velocity of seafloor rocks and sulfides. Subsequently, we measured the physical characteristics of hydrothermal sulfides, basalts and peridotites which were collected from newly discovered seafloor hydrothermal fields at 49.6°E, 50.5°E, 5 1°E, 63.5°E, and 63.9°E of the Southwest Indian Ridge （SWIR）. Previously available and newly collected data were combined to characterize the physical differences between polymetallic sulfides and rocks. We also discussed the impact of hydrothermal alteration on the bedrock and demonstrated how these petrophysical properties of rocks can help in geophysical prospecting of seafloor hydrothermal fields as indicators.
Bibliography:	SWIR, rock, polymetallic sulfides, physical properties, hydrothermal alteration Study of petrophysical properties of rocks in seafioor hydrothermal fields has great significance for inves- tigation of seafloor hydrothermal activities, especially for polymetallic sulfides prospecting. In the present study, based on the current experimental conditions, we conducted systematic experiments to measure the magnetic susceptibility, electrical resistivity, porosity, density, as well as acoustic wave velocity of seafloor rocks and sulfides. Subsequently, we measured the physical characteristics of hydrothermal sulfides, basalts and peridotites which were collected from newly discovered seafloor hydrothermal fields at 49.6°E, 50.5°E, 5 1°E, 63.5°E, and 63.9°E of the Southwest Indian Ridge （SWIR）. Previously available and newly collected data were combined to characterize the physical differences between polymetallic sulfides and rocks. We also discussed the impact of hydrothermal alteration on the bedrock and demonstrated how these petrophysical properties of rocks can help in geophysical prospecting of seafloor hydrothermal fields as indicators. 11-2056/P ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0253-505X 1869-1099
DOI:	10.1007/s13131-013-0367-4