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Granite and Basalt: 1. Granite is formed from magma that cooled slowly, so it has a coarse-grained texture. It may be pink, white-gray or light to moderate yellow. It contains the minerals feldspar, quartz and mica. Its mineral grains are similar in size. Granite is hard to scratch with a fingernail. 2. Basalt is formed from lava that cooled rapidly, so it has a fine-grained texture. Its mineral grains are so tiny that they can be seen only through a microscope. It may be black or dark green. It contains the minerals feldspar and olivine. Like granite, basalt is hard to scratch with a fingernail.
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How are basalt and granite different in their Orgin texture and mineral composition and how are they similar?
Both rocks are igneous rock but basalt is an aphanitic igneous rock while granite is a common type of felsic intrusive igneous rock.
Is basalt permeable?
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.
Is granite a phaneritic rock?
Granite is a phaneritic rock. Phaneritic rocks are coarse-grained, and they have visible crystals. Other phaneritic rocks include diorite, gabbro, and periodite. These rocks are also intrusive because they cool slowly.
What are granite and basalt?
Both are igneous rocks, formed from the cooling and solidification of magma. Granite is a felsic, intrusive igneous rock, with visible well mixed mineral crystals. Basalt is a mafic, extrusive igneous rock, composed of darker mineral crystals, most of which are not distinguishable without the aid of magnification.
Why are there no index fossils in the granite and basalt?
Granite and basalt are both igneous rocks - they are formed from magma extruded into another rock layer or from expulsion from a volcano. The heat of the cooling rock would completely melt any fossils they came into contact with and destroy them, so you don't see fossils in these rocks.
How are basalt and granite different in their Orgin texture and mineral composition and how are they similar?
Both rocks are igneous rock but basalt is an aphanitic igneous rock while granite is a common type of felsic intrusive igneous rock.
Is igneous rock granite or basalt?
Both granite ans basalt are types of igneous rock.
Is granite and basalt found in volcanoes?
Granite and basalt are both igneous rocks; however, basalt is considered a volcanic rock, and granite is considered a plutonic rock.
Is basalt permeable?
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.
Where does granite and basalt come from?
Both originate as molten magma but in the case of granite the magma is acidic and in the case of basalt the magma is basic.
What is the similarity between granite and basalt?
Both are igneous rocks.
What is the same between the origin of basalt and granite?
Both are igneous rocks.
What do basaltic and granitic magmas have in common?
Basalt and Granite are both made from the same magma.
Are granite and basalt called igneous rock?
They are both formed from the solidification of magma, the definition of igneous rock.
What is the comparison between basalt and granite in terms of their origin and texture?
Basalt is a fine grained VOLCANIC igneous rock of mafic composition typically made up of the minerals olivine, clino-pyroxene and calcium rich plagioclase. It is the product of undifferentiated magma at either constructive or destructive plate margins. Granite is a coarse grained PLUTONIC igneous rock of felsic composition typically made up of the minerals quartz, orthoclase, sodium rich plagioclase and either biotite or muscovite mica. It is the product of a highly differentiated, partial melting in which the felsic components have become a segregated fraction separate from the main subducting plate within a destructive plate margin. The two rocks are very different in colour; basalt is grey-brown whilst granite is pink or pale grey. They are however, both igneous rocks & may be used for construction. Granite is frequently used as the building blocks for houses, basalt is more commonly used for kerb stones.
Is granite a phaneritic rock?
Granite is a phaneritic rock. Phaneritic rocks are coarse-grained, and they have visible crystals. Other phaneritic rocks include diorite, gabbro, and periodite. These rocks are also intrusive because they cool slowly.
What do granite and basalt in common?
They are both lithospheric igneous rocks formed by the cooling and solidification of magma/lava and both of them contains silicon.
