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
Battle Beneath the Earth also a staple of afternoon-movie or Saturday-morning Creature Features-type TV programs before the historic sale of the MGM/UA film library. Metro-Goldwyn-Mayer originally handled North American theatrical distribution It was released on DVD by Warner Home Video on 29 July 2008, as a Best Buy exclusive double feature with "The Ultimate Warrior". The film features a fast-paced "crime-jazz" musical score. Battle Beneath the Earth Battle Beneath the Earth (1967) is a British spy film starring Kerwin Mathews. It was released by Metro-Goldwyn-Mayer. The film also features character actor Ed Bishop, who later went on to star in the Gerry Anderson cult