Accompanied by text: Explanatory pamphlet for Continent-ocean transect B3: Juan de Fuca spreading ridge to Montana thrust belt / Darrell S. Cowan. [12] p. ; 28 cm.
Title from envelope: B-3 Juan de Fuca spreading ridge to Montana thrust belt.
Includes cross sections showing tectonic kindred, age range, gravity and magnetism, terranes, index map, and tectonostratigraphic flow charts.