Assertion: ancient fault | /r/CapableOf | have made the earth's crust
Facets:
value: in the new madrid area
type: LOCATION
Source sentences:
text: The resulting rift system failed to split the continent, but has remained as an aulacogen (a scar or zone of weakness) deep underground, and its ancient faults appear to have made the Earth's crust in the New Madrid area mechanically weaker than much of the rest of North America.