The lithostratigraphic record of late Pleistocene Holocene environmental change at the Andrews site near Moose Jaw, Saskatchewan. The lithostratigraphic record of late Pleistocene Holocene environmental change at the Andrews site near Moose Jaw, Saskatchewan. Subsequent melt-out of buried, stagnant glacial ice created a shallow lacustrine basin ca. A bed of sandy mud enriched in charcoal flakes and charred seeds at the top of this evaporitic unit records a period of drainage basin destabilization by prairie fires, which resulted in increased runoff and erosion.
Sediments reflect a gradual transition, between ca.