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What is the main difference between andesite and diorite?
Both are igneous rocks of intermediate coposition.
Are all rocks either mafic or felsic?
No. First of all, the terms mafic and felsic generally only apply to igneous rock. even among igneous rocks, mafic and felsic are just ranges on a "spectrum" of composition. Other classifications and examples include ultramafic (peridotite), intermediate (andesite), and intermediate-felsic (dacite).
What is in the formation of igneous rocks but not in formation of metamorphic rocks?
igneous rocks form within earths surface
Do we have igneous rock in Nigeria?
No we do not have igneous rocks in Nigeria because there are no volcanoes in Nigeria and it is lava or magma that make igneous rocks.
How are minerals arranged in igneous rocks?
Most igneous rocks have a relatively homogenous mix of minerals which are interlocked.
What is intermediate igneous rocks?
to have it
What is the main difference between andesite and diorite?
Both are igneous rocks of intermediate coposition.
Where do we find intermediate rocks?
Intermediate rocks contain roughly equal amounts of dark- and light-colored minerals. Igneous rock containing 56-65 percent silica.
What are intermediate materials in a rock cycle?
Intermediate materials in the rock cycle include sedimentary rocks like sandstone and shale, which are formed through the deposition and compaction of sediments. These rocks can undergo metamorphism to form metamorphic rocks like marble and schist. Metamorphic rocks, in turn, can melt to form magma that solidifies into igneous rocks like granite and basalt.
What kind of igneous rocks that are composed of an amphibole and intermediate plagioclase?
Granite and diorite contain both.
Is augite a igneous mineral?
Augite is a type of pyroxene. It is a common mafic-intermediate igneous mineral, but can also be found in some metamorphic rocks.
What two methods are used to group igneous rocks?
Igneous rocks can be either intrusive or extrusive, based on their location upon solidification from magma. Igneous rocks can also be grouped by chemistry and mineral content as felsic, intermediate, or mafic, mainly on the abundance of silicate minerals that are present.
How do you classify igneous rocks from other types of rock?
Igneous rocks are formed from cooling and solidification of molten magma or lava. They are distinguished from sedimentary rocks, which are formed from the accumulation and compression of sediments, and metamorphic rocks, which are formed from the alteration of existing rocks due to heat and pressure. Igneous rocks often have a crystalline texture and can contain minerals such as quartz, feldspar, and mica.
When molten rocks cools what rocks form?
igneous rocks
What are andesite rhyolite and trachyte all a type of?
They are all extrusive igneous (i.e. volcanic) rocks of intermediate to felsic composition.
What type of rock always forms directly from another rock?
Metamorphic. By contrast, igneous rocks form from lava or magma, and sedimentary rock form from sediment. Those things are formed from previous rocks, but constitute intermediate stages: igneous and sedimentary rocks are formed indirectly from previous rocks.
Are all rocks either mafic or felsic?
No. First of all, the terms mafic and felsic generally only apply to igneous rock. even among igneous rocks, mafic and felsic are just ranges on a "spectrum" of composition. Other classifications and examples include ultramafic (peridotite), intermediate (andesite), and intermediate-felsic (dacite).
