The United States Geological Survey in Alaska: Accomplishments during 1984

Abstract

-Evaluating exposures on Divider Mountain near the crest of the Chugach Mountains in southern Alaska for the Trans-Alaska Crustal Transect (TACT) project. TACT is a geological and geophysical study to examine crustal features along the route of the Trans-Alaska oil pipeline. The transect extends from the tectonically active convergent margin in the Gulf of Alaska to the passive trailing margin of arctic Alaska near Prudhoe Bay. In 1984, detailed geologic mapping was conducted and seismic refraction lines were established near the southern end of the corridor in the Chugach Mountains and the southern Copper River basin. Articles by Fuis, Ambos, Mooney, Page, and Campbell (p. 56), and Plafker, Nokleberg, and Lull (p. 76), report preliminary findings of this project.