Bibliography of North American Geology 1948 - USGS Publications ...
on pollen data from islands in the Bering Sea and the mainland of western
Alaska, suggests that the land bridge climate was arid, even near its southern
shores, and that the vegetation was predominantly graminoid-herb-willow tundra
during full glacial time (Ager, 1982, 1983, 2002, 2003; Colinvaux, 1981). In this
paper, we ...Télécharger Bibliography of North American Geology 1948 - USGS Publications ... pdf