Geology of the Rocky Mountains Japan, Indonesia and the Aleutians; others are fragments of oceanic crust obducted onto the continental margin while others represent small isolated mid-oceanic islands. Magma generated above the subducting slab rose into the North American continental crust about inland. Great arc-shaped volcanic mountain ranges, known as the Sierran Arc, grew as lava and ash spewed out of dozens of individual volcanoes. Beneath the surface, great masses of molten rock were injected and hardened in place. For 270 million years, the effects of plate collisions were focused very near the edge of the North American plate boundary, far to the west of
What the Rose did to the Cypress What the Rose did to the Cypress What the Rose did to the Cypress is a Persian fairy tale. Andrew Lang included it in "The Brown Fairy Book" (1904), with the note "Translated from two Persian MSS. in the possession of the British Museum and the India Office, and adapted, with some reservations, by Annette S. Beveridge." A king had three sons. The oldest went hunting and chased a deer, giving orders that it should be captured rather than killed. It led him to a sandy waste where his horse died. He found a tree with a spring beneath it