Basalt is a type of rock that is considered to have intermediate silica content compared to other types of rocks. It is not high in silica like granite, but not low like ultramafic rocks. It is commonly found in volcanic environments and has a fine-grained texture.
Granite is actually high in silica, which is why it is considered a felsic igneous rock. An example of an igneous rock low in silica is basalt, which is mafic in composition and contains less silica than granite.
Yes, gabbro and basalt are silica-deficient igneous rocks that have high magnesium and iron content. Gabbro is a coarse-grained rock, while basalt is fine-grained due to differences in cooling rates. Both rocks form from the cooling of magma with low silica content.
There are 2 types of permeability- Porosity and Perviousness Granite and basalt are both pervious Granite has low porosity, but basalt can be both porous or non-porous. It depends on its rate of cooling.
Metamorphism can cause basalt to undergo changes in mineral composition and texture, forming new minerals like chlorite, epidote, or amphibole. The original basalt can recrystallize into a denser, harder rock known as greenstone due to metamorphic heat and pressure. The degree of metamorphism can vary, with low-grade metamorphism likely resulting in minor changes, while high-grade metamorphism can drastically alter the basalt's appearance.
Felsic, high in silica. Mafic, low in silica. Intrusive, those formed underground. Extrusive, those formed above ground.
Basalt is formed when low-silica lava erupts from a volcano and later cools.
Rock itself is solid and so does not have visocosity. However, the lava that forms basalt is low viscosity.
Granite is actually high in silica, which is why it is considered a felsic igneous rock. An example of an igneous rock low in silica is basalt, which is mafic in composition and contains less silica than granite.
Basalt
Both basalt and gabbro are made from the same kind of molten rock with the same chemistry. It is relatively low in silica, but high in magnesia and iron. They both look alike when they are put next to each other.
Yes, gabbro and basalt are silica-deficient igneous rocks that have high magnesium and iron content. Gabbro is a coarse-grained rock, while basalt is fine-grained due to differences in cooling rates. Both rocks form from the cooling of magma with low silica content.
Basalt.
No. Basalt is a low-silica igneous rock while rhyolite is high-silica. As far as volcanic rocks go, they are essentially opposites.
Basalt.
basalt
realate the high tempertures measured at the mid-ocean to the formation of basalt at the ridges
There are 2 types of permeability- Porosity and Perviousness Granite and basalt are both pervious Granite has low porosity, but basalt can be both porous or non-porous. It depends on its rate of cooling.