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Name Alias(es): 
Mangatolu Triple Junction
Kings Triple Junction
MGDS_FeatureID lowest in hierarchy: 
Location on map: 
National Jurisdiction: 
Maximum or Single Reported Depth (mbsl): 
Minimum Depth (mbsl): 
Tectonic setting: 
Full Spreading Rate (mm/a): 
Volcano Number (if applicable): 
Host Rock: 
BABB, MORB, low-K andesite
Deposit Type: 
PMS, polymetallic massive sulfides
Notes on Vent Field Description: 
(from 2006 InterRidge vents database): "widespread vent fields with local active sulfide deposits, and numerous low-temperature Fe oxide and silica chimneys"; Merle et al. (2008): tow MTJ, T08C06; Baker et al. 2019: sites 9, 10 & 11 near the intersection of tows T08C05 and T08C06 with spreading rates ranging from 35 to 37 mm/year in Table 1;
Year and How Discovered (if active, visual confirmation is listed first): 
1986 PAPATUA Expedition deposits only; 2008 plume only
Discovery References (text): 
Hawkins, J. (1986) "Black smoker" vent chimneys. Eos, Trans. AGU, 67(17): 430, accessed 5 May 2015:;
[Lisitsyn et al., International Geology Review, 34, 828-847, 1992, HYDROTHERMAL FORMATIONS IN THE NORTHERN PART OF THE LAU BASIN, PACIFIC OCEAN.];
Other References (text): 
Merle, S., et al. (2008) Northeast Lau Basin, R/V Thompson Expedition TN227, November 13-28, 2008, Apia to Apia, Western Samoa. Cruise report. Accessed 8 May 2015,;
Baker ET, Walker SL, Massoth GJ and Resing JA (2019) The NE Lau Basin: Widespread and Abundant Hydrothermal Venting in the Back-Arc Region Behind a Superfast Subduction Zone. Front. Mar. Sci. 6:382. doi: 10.3389/fmars.2019.00382;