Abstract
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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References
Cao Zhimin, Cao Hong, Tao Chunhui, et al. 2012. Rare earth element geochemistry of hydrothermal deposits from Southwest Indian Ridge. Acta Oceanologica Sinica, 31(2): 62–69
Gamo T, Nakayama E, Shitashima K, et al. 1996. Hydrothermal plumes at the Rodriguez triple junction, Indian ridge. Earth and Planetary Science Letters, 142(1–2): 261–270
Gamo T, Chiba H, Yamanaka T, et al. 2001. Chemical characteristics of newly discovered black smoker fluids and associated hydrothermal plumes at the Rodriguez Triple Junction, Central Indian Ridge. Earth and Planetary Science Letters, 193(3–4): 371–379
Haase K M, Koschinsky A, Petersen S, et al. 2009. Diking, young volcanism and diffuse hydrothermal activity on the southern Mid-Atlantic Ridge: The Lilliput field at 9°33′S. Marine Geology, 266(1–4): 52–64
Mercuriev S, Patriat P, Sochevanova N. 1996. Evolution de la dorsale de Carlsberg: évidence pour une phase d’expansion très lente entre 40 et 25 Ma (A18 à A7). Oceanologica Acta, 19: 1–13
Mudholkar A V, Kodagali V N, Raju K A K, et al. 2002. Geomorphological and petrological observations along a segment of slow-spreading Carlsberg Ridge. Current Science, 82(8): 982–989
Murton B J, Baker E T, Sands C M, et al. 2006. Detection of an unusually large hydrothermal event plume above the slow-spreading Carlsberg Ridge: NW Indian Ocean. Geophysical research letters, 33(10): L10608
Raju K A K. 2008. Recent cruise onboard R/V Sonne to the Carlsberg Ridge and the Andaman Sea. Inter Ridge News, 17: 34–35
Raju K A K, Kodagali V N, Fujimoto H. 1998. Three dimensional gravity and magnetic studies over a segment of the Carlsberg Ridge, Indian Ocean. 35th Annual Convention of Indian Geophysical Union held at National Institute of Oceanography, Goa. 29–30
Ray D, Mirza I H, Prakash L S, et al. 2008. Water-column geochemical anomalies associated with the remnants of a mega plume: A case study after CR-2003 hydrothermal event in Carlsberg Ridge, NW Indian Ocean. Current Science, 95: 355–360
Ray D, Raju K A K, Baker E T, et al. 2012. Hydrothermal plumes over the Carlsberg Ridge, Indian Ocean. Geochemistry Geophysics Geosystems, 13(null): Q1009
Semp J C, Klein E M. 1995. New insights in crustal accretion expected from Indian Ocean spreading centres. Eos, 76(11): 113–116
Tao Chunhui, Li Huaiming, Huang Wei, et al. 2011a. Mineralogical and geochemical features of sulfide chimneys from the 49°39′E hydrothermal field on the Southwest Indian Ridge and their geological inferences. Chinese Science Bulletin, 56(26): 2828–2838
Tao Chunhui, Li Huaiming, Yang Yaoming, et al. 2011b. Two hydrothermal fields found on the Southern Mid-Atlantic Ridge. Science China (Earth Sciences), 54(9): 1302–1303
Tao Chunhui, Lin Jian, Guo Shiqin, et al. 2004. First discovery and investigation of a high-temperature hydrothermal vent field on the ultra-slow spreading Southwest Indian Ridge. AGU fall meeting (abstract)
Tao Chunhui, Lin Jian, Guo Shiqin, et al. 2007. The Chinese DY115-19 cruise: Discovery of the first active hydrothermal vent field at the ultraslowspreading Southwest Indian Ridge. InterRidge News, 16: 25–26
Tao Chunhui, Lin Jian, Guo Shiqin, et al. 2012. First active hydrothermal vents on an ultraslow-spreading center: Southwest Indian Ridge. Geology, 40(1): 47–50
Tao Chunhui, Lin Jian, Wu Guanghai, et al. 2008. First Active Hydrothermal Vent Fields Discovered at the Equatorial Southern East Pacific Rise. AGU fall meeting (abstract)
Tivey MK, Humphris S E, Thompson G, et al. 1995. Deducing patterns of fluid flow and mixing within the TAG active hydrothermal mound using mineralogical and geochemical data. Journal of Geophysical Research, 100(B7): 12512–12527
Van Dover C L, Humphris S E, Fornari D, et al. 2001. Biogeography and ecological setting of Indian Ocean hydrothermal vents. Science, 294(5543): 818–823
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Foundation item: 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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Tao, C., Wu, G., Deng, X. et al. New discovery of seafloor hydrothermal activity on the Indian Ocean Carlsberg Ridge and Southern North Atlantic Ridge—progress during the 26th Chinese COMRA cruise. Acta Oceanol. Sin. 32, 85–88 (2013). https://doi.org/10.1007/s13131-013-0345-x
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DOI: https://doi.org/10.1007/s13131-013-0345-x