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Gondou

Name Alias(es): 
off-Kume Island
Maximum Temperature: 
315
Max Temperature Category: 
Latitude: 
26.3020
Longitude: 
126.4125
Location on map: 
Ocean: 
Region: 
National Jurisdiction: 
Maximum or Single Reported Depth (mbsl): 
1370
Minimum Depth (mbsl): 
1330
Tectonic setting: 
Volcano Number (if applicable): 
Host Rock: 
NotProvided
Deposit Type: 
NotProvided
Notes on Vent Field Description: 
"Based on our AUV data, ROV dives were conducted in November 2014. Chimneys and mounds with hydrothermal venting were confirmed [Ishikawa et al., 2016]" (Minami and Ohara, 2017); western flank of the third Kume-Knoll (Daisan-Kume Knoll); ROV Hyper Dolphin 3000 Dive #1761 in December 2014 suggests potential activity in the caldera of this knoll as well;
Year and How Discovered (if active, visual confirmation is listed first): 
2016 ROV Kaiko dive 721; 2014 AUV temperature anomaly, 2014 ROV may have confirmed
Discovery References (text): 
Minami, H., and Y. Ohara (2017), The Gondou hydrothermal field in the Ryukyu Arc: A huge hydrothermal system on the flank of a caldera volcano, Geochem. Geophys. Geosyst., 18, 3489–3516, doi:10.1002/2017GC006868.;
Kairei Cruise Report KR16-16 Cross-ministerial Strategic Innovation Promotion Program (SIP) Next-Generation Technology for Ocean Resources Exploration; Seeking and Hunting the Hydrothermal Activities in Southern Okinawa Trough; 18 November 2016, Naha – 5 December 2016, Kagoshima; Japan Agency for Marine-Earth Science & Technology (JAMSTEC), http://www.godac.jamstec.go.jp/catalog/data/doc_catalog/media/KR16-16_all.pdf (accessed on: 2019/01/09);
Other References (text): 
Ishikawa, N., Morozumi, H., and S. Shiokawa (2016), Discovery of several new seafloor hydrothermal deposits by the regional survey, such as Gondou Site, in central part of the Okinawa Trough, Japan, Abstract 1277 presented at 2016 Goldshmidt Conference, Yokohama, Japan, Geochemical Society, Washington, D. C.; https://goldschmidtabstracts.info/2016/1277.pdf (accessed on: 2019/02/13);
CRUISE REPORT, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), R/V Natsushima, Cruise NT14-22, Structural development of volcanic caldera in Kume-jima western offshore December 25-30, 2014, http://www.godac.jamstec.go.jp/catalog/data/doc_catalog/media/NT14-22_all.pdf (accessed on: 2019/02/13;