- GeoRef, Copyright 2006, American Geological Institute. Abstract, Copyright, Society of Economic Geologists. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
Modifications of existing pressure equipment for hydrothermal studies are described. These include the use of a jack as a simple means of generating high pressures in standard vessels, the conversion of pressure vessels into rod mills for grinding at elevated temperatures and pressures, and changes in design of pressure vessels.