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Kana Keoki seamount
Activity:
Latitude:
-8.7500
Longitude:
157.0300
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
650
Tectonic setting:
Volcano Number (if applicable):
Host Rock:
NotProvided
Deposit Type:
NotProvided
Notes on Vent Field Description:
on Ghizo Ridge, which is putative extinct spreading segment; this location does not correspond with an OSR (oceanic spreading ridge) segment in Bird (2003); re-classified to arc volcano based on Chadwick et al. (2009): "Although Simbo and Ghizo Ridges are part of the Woodlark Basin in a geographic and tectonic sense, very few of the samples recovered there have N-MORB chemical and petrographic characteristics, and most reveal a strong influence of an arc component."
Notes Relevant to Biology:
although 2000 cruise FR04/00 report (http://www.marine.csiro.au/nationalfacility/franklin/plans/2001/fr04_00s.html) says "a site on the western flank in an area described by the [Metal Mining Agency Japan]/SOPAC cruise as a hydrothermal vent community" - the SOPAC report online (http://www.sopac.org/data/virlib/TR/TR0209.pdf) does not mention hydrothermal vent community
Year and How Discovered (if active, visual confirmation is listed first):
1993 observations did not confirm activity
Discovery References (text):
Hosoi (1994) EXECUTIVE SUMMARY OCEAN RESOURCES INVESTIGATION IN THE SEA AREA OF SOPAC REPORT ON THE JOINT BASIC STUDY FOR THE DEVELOPMENT OF RESOURCES VOLUME 4, PHASE II: SEA AREA OF SOLOMON ISLANDS AND PAPUA NEW GUINEA. SOPAC Technical Report 209 (http://www.sopac.org/data/virlib/TR/TR0209.pdf)
Other References (text):
Chadwick, J. et al. (2009) Arc lavas on both sides of a trench: Slab window effects at the Solomon Islands triple junction, SW Pacific. Earth and Planetary Science Letters 279: 293-302.
RDF link: