New discovery of seafloor hydrothermal activity on the Indian Ocean Carlsberg Ridge and Southern North Atlantic Ridge—progress during the 26th Chinese COMRA cruise |
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作者姓名: | TAO Chunhui WU Guanghai DENG Xianming QIU Zhongyan HAN Chenhu LONG Yanmei |
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作者单位: | Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Key Laboratory of Marine Ecosystemand Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Key Laboratory of Marine Ecosystemand Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State |
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基金项目: | the National Basic Research Program of China under contract No. 2012CB417305; China Ocean Mineral Resources Research & Development Association Project under contract No. DY125-11; Endowment Fund of International Seabed Authority (the International Cooperative Study on Hydrothermal System at Ultraslow Spreading SWIR). |
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摘 要: | The 26th Chinese COMRA (China Ocean Mineral Resources Research & Development Association) cruise was an important cruise. The Carlsberg Ridge (CR) of the Northwest Indian Ocean and the North Atlantic Ridge (NAR), in which less investigation has been carried out for hydrothermal activities, were investigated and studied during the first two legs of the 26th COMRA cruise. During the first leg, we found one hydrothermal activity field located in the CR at 3.5 -3.8 N on the Northwest Indian Ocean Ridge (NWIR), and sampled seafloor polymetallic sulfide deposits where only abnormalities were found before. During the second leg, we found a new hydrothermal anomaly field located in the NAR at 4 -7 N. The discovery of two hydrothermal and anomaly fields filled in the gap of hydrothermal investigation and study in the corresponding regions for China.
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关 键 词: | 26th COMRA cruise Carlsberg Ridge Indian Ocean North Atlantic Ridge seafloor hydrothermal activity |
收稿时间: | 2013-01-01 |
修稿时间: | 2013-06-18 |
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