Summer, Neil S., and Kenneth L. Verosub. "Maturation Anomalies in Sediments Underlying Thick Volcanic Strata, Oregon: Evidence for a Thermal Event." Geology 15 (1987): 30-33.

Summer, Neil S., and Kenneth L. Verosub. "Maturation Anomalies in Sediments Underlying Thick Volcanic Strata, Oregon: Evidence for a Thermal Event." Geology 15 (1987): 30-33.