Note 7 — Chapter VIII · THE GRAND CANYON OF THE COLORADO
Reading edition
Geologists would call these rocks metamorphic crystalline schists, with dikes and beds of granite, but we will use the popular name for the whole series—granite.
Reading edition
Geologists would call these rocks metamorphic crystalline schists, with dikes and beds of granite, but we will use the popular name for the whole series—granite.