| Online link | http://pubs.usgs.gov/ds/764/ |
|---|---|
| Description | The purpose of this report is to present available petrographic and geochemical data for unmineralized rock samples, principally volcanic rocks and to make those data available to ongoing petrogenetic investigations of these rocks. |
| Originators | du Bray, Edward A.; John, David A.; Box, Stephen E.; Vikre, Peter G.; Fleck, Robert J.; and Cousens, Brian L. |
| Publication | U.S. Geological Survey Data Series 764 |