https://www.navdat.org/NavdatUserManager/AddUser.cfm
The Western North American Volcanic and Intrusive Rock Database
the westernnorth americanintrusive rockvolcanicdatabase
https://www.usgs.gov/publications/intrusive-rock-database-digital-geologic-map-utah
Intrusive rock database for the Digital Geologic Map of Utah | U.S. Geological Survey
Digital geologic maps offer the promise of rapid and powerful answers to geologic questions using Geographic Information System software (GIS). Using modern...
intrusive rockfor thegeologic mapgeological surveydatabase