Self-potential surveys related to probable geothermal anomalies, Hualalai Volcano, Hawaii

Abstract

Comparison of topographic gradients with self-potential fields on Hualalai suggests that for the southeastern and summit areas a topographic correction of approximately 1.6 mv/m is probably valid and should be made to all data. Northwest of the summit, elevation and SP correlations suggest that the streaming potential coupling coefficient is larger than farther east, and the topographic adjustments should probably be larger than the 1.6 mv/m that was used.