Assertion: starvation | /r/CapableOf | retreat by the time
Facets:
value: substantially southward
type: DEGREE
Source sentences:
text: Thus, as the continental ice sheets of Quaternary glaciations advanced south according to each Milankovitch cycle, their northern edges were starved and it is believed that starvation caused them to retreat substantially southward by the time the southern limits of maximum glaciation were approached.