Assertion: hydrate | /r/AtLocation | arctic regions
Facets:
value: in marine sediments along continental margins
type: LOCATION
value: naturally
type: MANNER
Source sentences:
text: Hydrates also exist naturally in arctic regions and in marine sediments along continental margins, and have gained attention as a potential energy resource (11, 12); even by the most conservative estimates, the energy dormant in natural gas hydrates worldwide is double that of all conventional fossil fuel deposits combined (1, 11).