The ocean floor on Google Earth has always been a little fuzzy, but the good folks at Google have recently improved the resolution:
Gulf of Mexico south of Louisiana. The irregular surface is formed by the rising of salt to form salt domes in some places, and dissolution of salt to form pits in others. The escarpment at the southern end of the chaotic area marks a thrust fault.These worm-like ridges are off of the Oregon coast, and are being formed by the crumpling of sedimentary material as the oceanic Juan de Fuca plate (to the left) subducts beneath the continental North American plate (to the right). Note also the submarine canyon cutting into the continental slope at the top.Mid ocean ridge, North Atlantic. the mid ocean ridge runs north-south, with a transform fault running east-west in the lower portion.Mariana Trench, the deepest location in the oceans. Numerous seamounts in the east and south portions.
GeoChristian 