| TAO Chunhui,WU Tao,JIN Xiaobing,DOU Bingjun,LI Huaiming,ZHOU Jianping. 2013. Petrophysical characteristics of rocks and sulfides from the SWIR hydrothermal field. Acta Oceanologica Sinica, 32(12):118－125 |
| Petrophysical characteristics of rocks and sulfides from the SWIR hydrothermal field |
| Petrophysical characteristics of rocks and sulfides from the SWIR hydrothermal field |
| Received:February 06, 2013 Revised:April 27, 2013 |
| DOI：10.1007/s13131-013-0367-4 |
| Key words:SWIR rock polymetallicsulfides physical properties hydrothermal alteration |
| 中文关键词: SWIR rock polymetallicsulfides physical properties hydrothermal alteration |
| 基金项目:Fundamental Project of Science and Technology under contract No. 2013FY112900; Public Science and Technology Research Funds Projects of Ocean under contract No. 201105001; the National Natural Science Foundation of China under contract No. 40506017. |
| Author Name | Affiliation | E-mail | | TAO Chunhui | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | WU Tao | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | wutao1988@126.com | | JIN Xiaobing | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | DOU Bingjun | Zhejiang DachengConstruction Group Co. Ltd, Hangzhou 310012, China | | | LI Huaiming | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | ZHOU Jianping | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | |
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| Abstract: |
| Study of petrophysical properties of rocks in seafloor hydrothermal fields has great significance for investigation 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, 51°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. |
| 中文摘要: |
| Study of petrophysical properties of rocks in seafloor hydrothermal fields has great significance for investigation 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, 51°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. |
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