Caption from publication, Figure I6B: Contact relationships of Moss Porphyry and Times Porphyry along Silver Creek. Another dark dike of the Moss cutting light Times Porphyry. Note fragments of Times in Moss and decrease in phenocryst percentage withing the Moss toward the right side of dike.
Published as Figure I6B in U.S. Geological Survey Bulletin No. 1857-I.
Note on deposit form: Project number D901317.