Columbia subject headings:
Geology, Stratigraphic--Quaternary.
Geomorphology.
Paleogeography.
Harvard subject headings:
Geology, Stratigraphic--Quaternary
Geomorphology.
Paleogeography--Quaternary.
Paleogeography.
Princeton subject headings:
Geology, Stratigraphic--Quaternary.
Geomorphology.
Paleogeography.