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Gorda Ridge, 41 30'N
Name Alias(es):
MGDS_FeatureID lowest in hierarchy:
Vent Sites:
Activity:
Maximum Temperature:
Max Temperature Category:
Latitude:
41.5167
Longitude:
-127.4500
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
3350
Minimum Depth (mbsl):
Tectonic setting:
Full Spreading Rate (mm/a):
55.5
Host Rock:
NotProvided
Deposit Type:
NFS, Mn crusts and nontronite
Notes on Vent Field Description:
layered deposits of Fe silicates (nontronite) and Mn crusts; Baker et al. (1987): "Most of the basalt samples showed mineralogic alteration indicative of low- to moderate-temperature hydrothermal activity, including a single recovery (at 41°31'N) of massive hydrothermal nontronite and associated Fe and Mn oxides. The deposit was filled with worm tubes but contained no fauna."; near GR-9 in Baker et al. (1987)
Notes Relevant to Biology:
Year and How Discovered (if active, visual confirmation is listed first):
1984 deposits only
Discovery References (text):
[CLAGUE D., et al. (1984) Preliminary geological, geophysical, and biological data from the Gorda Ridge. U.S.G.S. Openfile report 84-364, 49 pp.]
Other References (text):
Baker et al., Deep Sea Res. 34, 1461-1476, 1987, Evidence for high-temperature hydrothermal venting on the Gorda Ridge, northeast Pacific Ocean
[Could not find specific reference: Old InterRidge database cited Deep Sea Research II, 45 (12), 1998 (special volume)]
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