Basalt
Shale
The volcanic rock that makes up most of the ocean floor is called sediment.
As it turns out, most of the ocean floor is basalt, and most of the continents are granite.
sediment on the ocean floor
There is no rock that makes up igneous rock. It is made when lava cools and hardens.
Ocean basins are primarily made of the igneous rock, basalt.
The volcanic rock that makes up most of the ocean floor is called sediment.
As it turns out, most of the ocean floor is basalt, and most of the continents are granite.
Basalt is the igneous rock which makes up most of the ocean floors. It is smooth and velvety-black in appearance and very hard. New seafloor is constantly produced at the mid-ocean rifts, where areas between spreading tectonic plates are infilled with rapidly cooling lava.
Most of the ocean floor is made up of ocean plains.
Most of the rocks of the earth's crust are igneous, although sedimentary rocks usually cover them. Basalt is the most common type of igneous rock and it covers the ocean floor and thus, exists over two-thirds of the earth's surface!
The ocean floor is the most anaerobic zone in the ocean.
The most abundant mineral in the ocean floor is basalt. There are also some other minerals like sand, gravel and granite that are found in the ocean floor.
sediment on the ocean floor
There is no rock that makes up igneous rock. It is made when lava cools and hardens.
Ocean basins are primarily made of the igneous rock, basalt.
The most prominent feature on the ocean floor is basalt. There are other types of salts and silt as well which makes up the ocean floor. ADDED: Almost there. Yes, the deep ocean floors are of basalt, but though there are areas of bare rock, most are covered with deep layers of sediment. Not "other types": basalt is neither a silt nor salt.
The type of rock would be igneous.