basalt rocks are also called
Answers
Answer:
The term basalt is at times applied to shallow intrusive rocks with a composition typical of basalt, but rocks of this composition with a phaneritic (coarser) groundmass are more properly referred to as diabase (also called dolerite) or, when more coarse-grained (crystals over 2 mm across), as gabbro.
Explanation:
Basalt is a dark-colored, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals. It most commonly forms as an extrusive rock, such as a lava flow, but can also form in small intrusive bodies, such as an igneous dike or a thin sill.
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- Basalt rocks is also known as a dark volcanic rock.
The term basalt is at times applied to shallow intrusive rocks with a composition typical of basalt, but rocks of this composition with a coarse groundmass and are generally referred to as gabbro.
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