what type of rock form in warm ocean bottoms
Second, sedimentary rocks form on the bottom of the ocean when particles rain down from the surface. These particles can become compressed and cemented to form limestone. Fossilized sea creatures are often found in these rocks. Most of the mountains around Las Vegas are composed of sedimentary rocks. Red Rock Canyon (photo) provides a spectacular example of both types: the gray mountains are limestone, and the red-and-white hills are sandstone.