surface (6), where it mixes with the cold seawater, forming black metal-sulfide compounds (7).
(it; mixes; with the cold seawater; forming black metal-sulfide compounds) Context(it mixes,List([19, 27))):(it; mixes with the cold seawater forming; black metal-sulfide compounds)
it mixes,List([19, 27))
it it
mixes mixes with the cold seawater forming
with the cold seawater forming black metal-sulfide compounds
black metal-sulfide compounds