Seismic imaging of extended crust with emphasis on the western United States McCarthy, Jill ; Thompson, George A. Abstract Publication: Geological Society of America Bulletin Pub Date: September 1988 DOI: 10.1130/0016-7606(1988)100<1361:SIOECW>2.3.CO;2 Bibcode: 1988GSAB..100.1361M