Cosmogenic Isotope Chronology, Seward Peninsula and NC Brooks Range
CENTRAL BROOKS RANGE GLACIAL SEQUENCE
Sampling for cosmogenic isotope dating was done using an 8 lb sledge hammer, here
skillful swung by collaborator Tom Hamilton. He was amazing.
Geologist Tom Hamilton, emeritus of USGS, Olga Gluskova, NEISRI-Magadan, and
Julie BG, UMass in the central Brooks Range.
Subdued Gunsight mountain moraine crest of Late Pliocene/earliest Pleistocene age on
the North Slope. Not many surface erratics left here.
Moraine crest of the Itkillik II late Wisconsin moraine in the vicinity of Toolik Lake.
Late Wisconsin river terraces of the Sagavanirtok River.
Beringian Paleoenvironments Workshop (September 1997)
Paleoenvironments and Glaciation in Beringia Home Page
University of Massachusetts | Department of Geosciences