Assertion: solution cave | /r/CapableOf | form at shallow depths
Facets:
value: by the action of water
type: CAUSE
value: from 1,000 metres
type: LOCATION
value: relatively
type: DEGREE
Source sentences:
text: Most solution caves form at relatively shallow depths (from a few tens of metres to 1,000 metres) by the action of water rich in carbonic acid (H 2 CO 3 ) derived from recent rainfall.