earthcrust

Updated: May 11, 2025

Originally an archaean sea-bottom rock this stone lay submerged in the ocean until during the Jurassic Period, under the lateral pressure of a cooling earthcrust the table-lands and mountain-chains of Arizona rose from the seas.

George (Henry George August) Hartmann - Tales of Aztlan; the Romance of a Hero of our Late Spanish-American War, Incidents of Interest from the Life of a western Pioneer and Other Tales