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Basalt is a commonly extrusive volcanic rock. It is usually grey to black and fine-grained due to rapid cooling of lava at the surface of a planet. Unweathered basalt is black or grey. Basalt is defined as an igneous rock that contains less than 20% quartz and less than 10% feldspathoid and where at least 65% of the feldspar is in the form of plagioclase. On Earth, most basalt magmas have formed by decompression melting of the mantle. Basalt has also formed on Earth's Moon, Mars, Venus, and even on the asteroid Vesta. Basalt is being forming all the time from volcanic eruptions and activity.
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Is granite in basalt?
No. Granite and basalt have different compositions and form under different circumstances.
Can diamonds form in basalt?
No diamond cannot form in basalt. Diamond only form in Kimberlite because it develop only at very low cooling rate.
Do basalt and rhyolite form magma?
No. Both basalt and rhyolite are formed from molten rock erupts from a volcano.
Do basalt plateaus form from explosive or quiet eruptions?
Quiet eruptions are a characteristic of basalt lava flows and plateaus.
Does basalt form most of the earths crust?
yes
What type of lava form mount st Helen?
Basalt
What makes basalt not a minerals?
Basalt consists of multiple minerals. Pyroxene, calcium-rich plagioclase, and sometimes olivine are key minerals in basalt. Basalt that cools rapidly may form glass, which contains no minerals because it lacks a crystal structure.
Sandstone and basalt can be changed by heat pressure to form?
Sedimentary rocks
What is the first mineral to form when magma starts crystalizing at 1200C?
Basalt
How will basalt change in the future?
Basalt will not change it the future. Basalt will always be basalt. As rocks unlike humans or animals do not evolve. As they are inanimate objects. The however can be turned back into magma or lava, They can be eroded, or undergo metamorphism. Then then will change in shape and form but basalt will always have the same chemical composure as if it had a different one it would be a different rock.
Is basalt smooth?
It can be if it takes the form of a type of lava flow called pahoehoe. However, basalt may also come in the form of jagged a'a flows.
Can basalt turn into shale?
No, basalt cannot turn into shale. Basalt is an igneous rock formed from the cooling of lava, while shale is a sedimentary rock formed from the compaction of clay or mud. The processes that form these two types of rocks are different, so basalt cannot directly change into shale.
