William Thomas Pecora—USGS—Origin of carbonatites, Bearpaw Mountains, Montana.
Louis Charles Pakiser Jr., D. P. Hill, and H. L. Baldwin—USGS—Gravity anomalies in volcanic regions of the southern Cascade Range, the Snake River Plain, and Yellowstone National Park.
View all talks from 1961 | Go to Meeting number 818 | Go to Meeting number 820 |