Assertion: harbor hill moraine | /r/CapableOf | create stationary melting front
Facets:
Source sentences:
text: The Harbor Hill Moraine, named for its prominence at Harbor Hill, Roslyn, New York, the highest point in Nassau County, resulted from a lingering equilibrium stage in the glacier's episodic retreat, creating a stationary melting front; the Long Island area became permanently free of glacial ice in the range of 13,000 to 12,000 YBP