Millions of years ago, the area now known as South Dakota was covered by seas. The shells and skeletons of the animals which lived in the seas formed the limestone that is now found in South Dakota.
Most limestone was originally formed from sediments at the bottom of oceans, past and present.
By cooling of molten rock under the oceans
The fine-grained sedimentary rock, limestone is mostly made up of calcite. Most limestones are formed in oceans, and sometimes from seashells. Some may be formed in lakes. Limestone is a form of sedimentary rock.
It was about 4 billion years ago, that the Earths oceans formed
Limestone was discovered in the deep oceans where there is a little movement of water. Almost it is found in all parts of the world.
by -----------------
Granite for the continents; Basalt for the oceans.
Volcanoes.
Rain falls alot
a delta
Coral
it is formed by lots of diffrent seas and oceans it can also be formed by a puddle