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
To the Edge of the Earth To the Edge of the Earth To the Edge of the Earth is a limited edition extended play (EP) by American rock band Thirty Seconds to Mars, released in the United States on March 25, 2008 by Virgin Records. The two-disc set includes three different recordings of the band's track "A Beautiful Lie" and a DVD featuring two versions of the song's music video. The photography for the release was handled by Jacques Descloitres from NASA, who provided satellite images of the Arctic Circle. "To the Edge of the Earth" was conceived in support to the environmental campaign which Thirty