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Natsushima 84-1 Knoll
Name Alias(es):
Vent Sites:
Activity:
Maximum Temperature:
Max Temperature Category:
Latitude:
27.5750
Longitude:
127.1417
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
1600
Minimum Depth (mbsl):
Tectonic setting:
Full Spreading Rate (mm/a):
28.8
Host Rock:
NotProvided
Deposit Type:
NotProvided
Notes on Vent Field Description:
first hydrothermal vent field discovered in Japanese waters; low temperature venting fluid
Notes Relevant to Biology:
no hydrothermal vent-endemic species reported as of Kojima (2002) review
Year and How Discovered (if active, visual confirmation is listed first):
1986 submersible Shinkai 2000
Discovery References (text):
[Kimura, et al. (1987) Submersible SHINKAI 2000 study on the central rift in the middle Okinawa Trough. JAMSTEC Tech. Rep. Spec. Issue 165-196 (in Japanese with English abstract)
Kimura et al. (1988) Active hydrothermal mounds in the Okinawa Trough backarc basin, Japan. Tectonophysics 145: 319-324].
Other References (text):
Ishibashi et al. (1988) Geochemical evidence for hydrothermal activity in the Okinawa Trough. Geochemical Journal 22: 107-114
Kojima (2002) Deep-sea chemoautosynthesis-based communities in the northwestern Pacific. Journal of Oceanography 58: 343-363.
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