The thesis is a structural and petrographic study of approximately
23 square miles in the Millican SE quadrangle, Deschutes
County, Oregon. The area lies along the Brothers fault zone.
Bedrock in the area is of Pliocene to Recent age and consists
of an older basaltic unit with an associated dacite,...
Nine west-northwest-trending faults on the continental margin of
Oregon and Washington, between 43° 05'N and 470 20'N latitude, have been
mapped using seismic reflection, sidescan sonar, submersibles, and swath
bathymetry. Five of these oblique faults are found on both the Juan de Fuca
and North American plates, and offset abyssal...