The water then rises back to the surface (6), where it mixes with the cold seawater, forming black metal-sulfide compounds (7).
(The water; rises; back to the surface; T:then) (it; mixes; with the cold seawater; forming black metal-sulfide compounds) Context(it mixes,List([52, 60))):(it; mixes with the cold seawater forming; black metal-sulfide compounds)
it mixes,List([52, 60))
The water it it
rises mixes mixes with the cold seawater forming
back to the surface T:then
with the cold seawater forming black metal-sulfide compounds
black metal-sulfide compounds