You are here
Starfish Seamount, Tinakula
Name Alias(es):
Jean-Charcot Troughs
JCT
Northern Backarc Troughs
New Hebrides backarc troughs
NHBAT
Vent Sites:
Tinakula
Activity:
Max Temperature Category:
Latitude:
-12.2028
Longitude:
167.6139
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
1204
Minimum Depth (mbsl):
1070
Tectonic setting:
Host Rock:
NotProvided
Deposit Type:
NotProvided
Notes on Vent Field Description:
position for Site F of Tinakula deposit in Fig. 2 of Anderson et al. (2019): "The Tinakula seafloor massive sulfide (SMS) deposit is the first identified modern analog of a mafic volcaniclastic-dominated deposit of the type described by Morton and Franklin (1987). It is located in the Jean Charcot troughs in the northern New Hebrides back arc"; this position is on the eastern flank of Starfish seamount; KAIYO 1989 cruise CH4 anomaly 400 mab, high methane/Mn ratio; this is not Tinakula stratavolcano Global Volcanism Program volcano number 256010;
Year and How Discovered (if active, visual confirmation is listed first):
2011 commercial ROV; 1989 plume only; 1989 towed camera survey did not confirm activity; 2002 plume and dredge only
Discovery References (text):
Nakada et al. (1994) High-Na dacite from the Jean Charcot Trough (Vanuatu), Southwest Pacific. Mar. Geol. 116: 197-213;
Maillet et al., 1995. Tectonics, magmatism, and evolution of the New Hebrides backarc troughs (Southwest Pacific). pp.177-235, in Backarc Basins: Tectonics and Magmatism, ed. Taylor, B., Plenum Press, New York;
SOLAVENTS FR03/2002 cruise summary (http://www.marine.csiro.au/datacentre/process/data_files/cruise_docs/fr200203sum.pdf);
Other References (text):
McConachy (2002) Submarine Hydrothermal Processes in Volcanic Arcs, Back Arcs and Continental Shelf Settings in the SW Pacific (http://smedg.org.au/McCJune02.pdf);
[McConachy et al., CSIRO Exploration and Mining Rpt Cruise report 1026F, 402 pp., 2002];
Melissa O. Anderson, Mark D. Hannington, Timothy F. McConachy, John W. Jamieson, Maria Anders, Henning Wienkenjohann, Harald Strauss, Thor Hansteen, Sven Petersen; Mineralization and Alteration of a Modern Seafloor Massive Sulfide Deposit Hosted in Mafic Volcaniclastic Rocks. Economic Geology ; 114 (5): 857–896. doi: https://doi.org/10.5382/econgeo.4666;
RDF link: