Mafic igneous rocks, like basalt, are dark colored and low in silica.
Normally, light colored igneous rocks are less dense compared to dark colored igneous rocks. This is because the light colored rocks have a less iron in them.
Normally, light colored igneous rocks are less dense compared to dark colored igneous rocks. This is because the light colored rocks have a less iron in them.
Dark colored igneous rock
gabbro
Mafic igneous rocks, like basalt, are dark colored and low in silica.
The sentence is incomplete but suggests that it refers to basalt, which is indeed the dark-colored rock that primarily composes the oceanic crust. Therefore, if the sentence is asserting that the oceanic crust is primarily made up of a dark-colored rock, it is true.
Scoria is a highly vesicular (porous), dark colored volcanic rock.
Gneiss
Basalt !! :)
Basalt is known as a type of rock. This rock is a dark-colored and fine grained.
it is an intrusive igneous rock with composition equivalent of basalt.it is dark colored due to high concentration of dark minerals;olivine,biotite,hornblende.
Basalt