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Carlsberg Ridge, 63 50'E
Activity:
Latitude:
3.6916
Longitude:
63.8333
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
3500
Tectonic setting:
Full Spreading Rate (mm/a):
30.2
Host Rock:
NotProvided
Deposit Type:
NotProvided
Notes on Vent Field Description:
Ray et al. (2012): "Prominent optical backscatter and thermal anomalies coupled with chemical (e.g., ΔE, 3He, Mn) signatures in seawater demonstrated the existence of hydrothermal sources on off-axis highs on the south wall of the Carlsberg Ridge. Pronounced backscatter anomalies and anomalous DMn concentrations suggest a high temperature hydrothermal source for the plume." "The strength of the ΔE anomaly ensures that the corresponding seafloor source is on the 63°50′E promontory, distinct from the sources found near 63°40′E."; this location is consistent with sulfide field A in Tao et al. (2013); China national update in 2013 InterRidge News: "In the Carlsberg Ridge, a new hydrothermal vent was found and one sediment trap has been moored in the vicinity of this active hydrothermal vent to study the composition and sedimentation of hydrothermal plume particles"
Year and How Discovered (if active, visual confirmation is listed first):
2009 plume only; 2012 plume and deposits
Discovery References (text):
Ray, D., K. A. Kamesh Raju, E. T. Baker, A. Srinivas Rao, A. V. Mudholkar, J. E. Lupton, L. Surya Prakash, R. B. Gawas, and T. Vijaya Kumar (2012), Hydrothermal plumes over the Carlsberg Ridge, Indian Ocean, Geochem. Geophys. Geosyst., 13, Q01009, doi:10.1029/2011GC003888.
Tao et al. (2013) 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 Oceanologica Sinica, 32, 85-88.
RDF link: