S-OH2 |
active, inferred |
mid-ocean ridge |
N MAR |
34.0670 |
-37.4830 |
3250 |
2000 or earlier plume only |
Pacific-Antarctic Ridge, 60 S segment |
active, inferred |
mid-ocean ridge |
Pacific-Antarctic Ridge |
-60.0000 |
-152.0000 |
2300 |
2009 plume only |
North Cleft, low temperature |
active, confirmed |
mid-ocean ridge |
JdF Ridge |
44.8833 |
-130.2667 |
2250 |
1987-1989 camera/CTD tows |
GEISEIR site 6, segment K2 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.6600 |
81.6617 |
2600 |
2007 plume only; 2010 plume only |
EPR, 28.7 S, Segment W4 |
active, inferred |
mid-ocean ridge |
S EPR |
-28.7000 |
-112.9880 |
2350 |
1998 plume only |
Feather Duster |
active, confirmed |
mid-ocean ridge |
N EPR |
10.9267 |
-103.6767 |
2520 |
1984 towed camera and submersible Alvin |
EPR, 11 45'N, OSC |
active, inferred |
mid-ocean ridge |
N EPR |
11.7775 |
-103.8300 |
2580 |
1984 Angus camera (or 1985 Argo video) tow with temperature; 1988 submersible Alvin dive #2004 (need reference to confirm activity) |
EPR, Ridge 3, 20 40'S |
active, confirmed |
mid-ocean ridge |
S EPR |
-20.3333 |
-113.6792 |
3050 |
1983 Deep Tow camera |
CIR, 8-17 S, Segment 6, 14.75 S |
active, inferred |
mid-ocean ridge |
CIR |
-14.7500 |
66.5000 |
3400 |
2010 plume only |
Teotihuacan |
active, confirmed |
mid-ocean ridge |
N EPR |
15.7333 |
-105.4333 |
2300 |
2010 submersible Nautile; 1997 plume only |
Discovery Deep |
active, inferred |
mid-ocean ridge |
Red Sea |
21.2830 |
38.0500 |
2100 |
1965 "confirmed" hot brine and cored seafloor, but see Table 1 in Miller et al. (1966) for historical measurements |
Calyfield |
active, confirmed |
mid-ocean ridge |
Galapagos Rift |
0.8300 |
-89.6083 |
1660 |
2002 submersible Alvin |
Shaban Deep |
active, inferred |
mid-ocean ridge |
Red Sea |
26.2250 |
35.3500 |
1540 |
1983 deposits only |
EPR, 2 S |
active, confirmed |
mid-ocean ridge |
S EPR |
-2.2200 |
-102.6550 |
2900 |
2008 towed video and AUV ABE |
GEISEIR site 30, segment O1 |
active, inferred |
mid-ocean ridge |
SEIR |
-46.6240 |
96.0594 |
2500 |
2009 plume only |
Luso |
active, confirmed |
mid-ocean ridge |
N MAR |
38.9833 |
-29.8833 |
570 |
2018 ROV Luso |
Knipovich Ridge, 77 40'N |
active, inferred |
mid-ocean ridge |
Knipovich Ridge |
77.6300 |
7.5800 |
3000 |
2000 plume only |
Lucky Strike segment, southern end |
active, inferred |
mid-ocean ridge |
N MAR |
37.0500 |
-32.4200 |
2600 |
1994 plume only |
GEISEIR site 19, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.8333 |
87.6266 |
2400 |
2009 GEISEIR 1 and 2010 GEISEIR 2 plume only |
EPR, 7 25'S |
active, confirmed |
mid-ocean ridge |
S EPR |
-7.4167 |
-107.8000 |
2750 |
1985/86 or 1989 TV grab (need to check references to confirm activity); 1998 submersible Alvin |
SEIR-WXC27 |
active, inferred |
mid-ocean ridge |
SEIR |
-50.4000 |
134.3000 |
2760 |
2015 plume only |
EPR, 22 30'S |
active, inferred |
mid-ocean ridge |
S EPR |
-22.5000 |
-114.3670 |
2600 |
1985/86 or 1989 TV grab (need to check references to confirm activity) |
MAR, 27 N |
active, inferred |
mid-ocean ridge |
N MAR |
27.0000 |
-44.5000 |
2900 |
1993 plume only |
Chile Rise, Segment N8 |
active, inferred |
mid-ocean ridge |
Chile Rise |
-38.7167 |
-91.5667 |
3330 |
1998 plume only |
CIR, 8-17 S, Segment 3 |
active, inferred |
mid-ocean ridge |
CIR |
-10.6600 |
66.5000 |
3500 |
2010 plume only |
Axial Seamount, International District |
active, confirmed |
mid-ocean ridge |
JdF Ridge |
45.9266 |
-129.9795 |
1544 |
1986 submersible Pisces IV |
Aegir |
active, confirmed |
mid-ocean ridge |
Mohns Ridge |
72.3440 |
1.5550 |
2600 |
2015 ROV Ægir 6000; 2013 plume only; 2015 AUV |
MAR, 12 48'N |
inactive |
mid-ocean ridge |
N MAR |
12.8000 |
-44.7883 |
2400 |
NotProvided |
Romanche Fracture Zone |
inactive |
mid-ocean ridge |
S MAR |
-0.9767 |
-24.5133 |
3100 |
NotProvided |
Gakkel Ridge, Site 2 |
active, inferred |
mid-ocean ridge |
Gakkel Ridge |
83.8500 |
-2.0000 |
3900 |
2001 plume only |