Primarily lime stone.
"Mid ocean would be basaltic pillow lavas, continental shelves \ contain coquina limestones made from shells. There are some sites around the Bahamas that have exposed limestones derived in a former time from limey oozes/muds. All in all by a vast percentage would be basalt." http://answers.yahoo.com/question/index?qid=20090908165526AAraFxL that's my citation
Oceanic plates are primarily made of basalt, which is a type of volcanic rock that forms from the cooling and solidification of magma on the ocean floor. Basalt is dark in color and has a fine-grained texture.
The mountain is likely made of sedimentary rock, such as limestone or sandstone, that formed from the accumulation and compaction of the remains of ancient ocean organisms over millions of years.
The color of the rock that forms oceanic crust at mid-ocean ridges is dark gray to black. The rock is primarily basalt, which is a type of igneous rock formed from the solidification of molten lava.
The color of rock that forms oceanic crust at mid-ocean ridges is usually dark gray to black. The type of rock is basalt, which is rich in iron and magnesium and forms from solidified lava.
Basalt
An Organic rock is an Sedimentary rock and it is made in the ocean from calcium and other minerals building up on the ocean floor :)
The octopus habitat depends on the type of octopus. The majroity of octopus makes it home on the ocean floor in cracks and crevices in the rock formations.
Eventually they will form limestone, a sedimentary rock.
The Clastic sedimentary rock is a rock made out of rock particles so if these rock particles float to the bottom of water such as an ocean or lake and will settle there. Hope this answered your question!! xD
"Mid ocean would be basaltic pillow lavas, continental shelves \ contain coquina limestones made from shells. There are some sites around the Bahamas that have exposed limestones derived in a former time from limey oozes/muds. All in all by a vast percentage would be basalt." http://answers.yahoo.com/question/index?qid=20090908165526AAraFxL that's my citation
The most abundant rock type in the ocean floor crust is basalt. This volcanic rock forms from the rapid cooling of lava at mid-ocean ridges and is a key component of oceanic crust. Basalt is typically dense and rich in iron and magnesium, distinguishing it from the continental crust, which is primarily composed of lighter granitic rocks.
Oceanic plates are primarily made of basalt, which is a type of volcanic rock that forms from the cooling and solidification of magma on the ocean floor. Basalt is dark in color and has a fine-grained texture.
Oceanic crust, formed mostly of mafic rocks, or sima, is found on the ocean floor.
Biogenous
igneous rock
Sedimentary rocks are formed over existing basaltic rock on ocean beds.