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Mariana Trough, Central Trough
MGDS_FeatureID lowest in hierarchy:
Activity:
Maximum Temperature:
290
Latitude:
18.0467
Longitude:
144.7533
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
3676
Tectonic setting:
Full Spreading Rate (mm/a):
32.3
Host Rock:
MORB, minor BABB
Deposit Type:
PMS
Notes on Vent Field Description:
fourth vent field identified in Hessler and Lonsdale (1991); unnamed #14 in Ishibashi and Urabe (1995); chimneys and ochreous oxide mud mounds; note: Hawkins et al. (1990) list this position as high temperature (250-290 C); Baker et al. 2017: listed as site 16 in Table 2;
Notes Relevant to Biology:
NotProvided
Year and How Discovered (if active, visual confirmation is listed first):
1987 submersible Alvin
Discovery References (text):
Hawkins et al., Earth Plant. Sci. Lett., 100, 226-250, 1990, Petrology of the axial ridge of the Mariana Trough backarc spreading center;
Other References (text):
Hessler and Lonsdale (1991) Biogeography of Mariana Trough hydrothermal vent communities. Deep Sea Research Part A 38: 185-199;
Ishibashi, J. and Urabe, T. (1995) Hydrothermal activity related to arc-backarc magmatism in the western Pacific. pp. 451-495 in Backarc basins: Tectonics and magmatism, ed. Taylor, B., Plenum Press, New York;
Baker, E. T., Walker, S. L., Resing, J. A., Chadwick, W. W., Merle, S. G., Anderson, M. O., … Michael, S. (2017). The effect of arc proximity on hydrothermal activity along spreading centers: New evidence from the Mariana back arc (12.7°N–18.3°N). Geochemistry, Geophysics, Geosystems, 18, 4211–4228. https://doi.org/10.1002/2017GC007234;
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