A three-dimensional high-resolution seismic study of the summit caldera of Newberry Volcano, Oregon, was conducted by the U. S. Geological Survey using an adaptation of the method applied by Nercessian et al. , (1984). Preliminary interpretation of the traveltime residuals reveals a ring of high P-velocity material coinciding with the inner ring fault system of the caldera in the upper 2 km. A zone of lower P velocities extends deeper than 2 km in the center of the caldera.
Additional publication details
THREE-DIMENSIONAL P-VELOCITY STRUCTURE OF THE SUMMIT CALDERA OF NEWBERRY VOLCANO, OREGON.
Geothermal Resources Council
Davis, CA, USA
Larger Work Title:
Transactions - Geothermal Resources Council
1985 International Symposium on Geothermal Energy. Geothermal Resources Council 1985 Annual Meeting.