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What is the difference of andesitic and andesite?
Andesite is a type of extrusive igneous rock with moderate levels of silica. Andesitic is an adjective used to describe volcanic material with the composition of andesite. For example, andesitic lava will cool to form andesite.
What does it mean to have andesitic composition?
Having an andesitic composition means that a rock or magma contains a combination of minerals such as plagioclase feldspar, amphibole, and biotite, and has an intermediate silica content compared to other types of volcanic rocks. Andesitic compositions are commonly associated with subduction zones and are characterized by their moderate viscosity and tendency to erupt explosively.
What igneous rocks have a mineral composition between that of granitic and basaltic rocks?
Andesite and diorite are two common igneous rocks that have a mineral composition intermediate between granitic and basaltic rocks. Andesite is fine-grained and contains plagioclase feldspar and pyroxene minerals, while diorite is coarse-grained and composed of plagioclase feldspar, amphibole, and other minerals.
What is andesitic magma made of?
Andesitic magma is composed of a mixture of silica-rich minerals such as plagioclase feldspar and amphibole. It also contains smaller quantities of pyroxene, biotite, and quartz. Its intermediate composition gives it characteristics of both basaltic and rhyolitic magmas.
Where is andesitic magma found?
Andesitic magma is commonly found in subduction zones where oceanic crust is being forced beneath continental crust. These environments are typically associated with volcanic arcs and stratovolcanoes. Examples of where andesitic magma is found include the Andes Mountains in South America and the Cascades in the western United States.
What is the difference of andesitic and andesite?
Andesite is a type of extrusive igneous rock with moderate levels of silica. Andesitic is an adjective used to describe volcanic material with the composition of andesite. For example, andesitic lava will cool to form andesite.
What is the mineral composition of an intermediate igneous rock?
felsic and something else i do not remember the second one.
What does it mean to have andesitic composition?
Having an andesitic composition means that a rock or magma contains a combination of minerals such as plagioclase feldspar, amphibole, and biotite, and has an intermediate silica content compared to other types of volcanic rocks. Andesitic compositions are commonly associated with subduction zones and are characterized by their moderate viscosity and tendency to erupt explosively.
Whats the composition of lava for Mt Pelee?
The lava composition of Mount Pelée in Martinique is typically andesitic, which means it contains minerals such as plagioclase, pyroxene, and amphibole. Andesitic lava is intermediate in composition between basaltic (low silica content) and rhyolitic (high silica content) lavas.
The average composition of rocks comprising a large composite cone or stratovolcano is similar to what magma?
The average composition of rocks in a large composite cone or stratovolcano is similar to andesitic magma. Andesitic magma is intermediate in composition between basaltic and rhyolitic magma, containing elements such as silica, magnesium, and iron. This magma type is responsible for the explosive eruptions characteristic of stratovolcanoes.
Is it true Andesitic rock is an igneous rock with a composition in between that of basaltic and granitic igneous rock.?
Yes, andesitic rock is indeed an igneous rock that has a composition situated between basaltic and granitic rocks. It typically contains a moderate amount of silica, ranging from about 57% to 63%, which gives it characteristics that are intermediate between the two. Andesitic rocks are commonly found in volcanic arcs and are often associated with subduction zones.
What type of lava is considered intermediate composition?
Andesitic lava is considered intermediate in composition. It has moderate silica content and viscosity, resulting in eruptions that produce both effusive and explosive activity.
What igneous rocks have a mineral composition between that of granitic and basaltic rocks?
Andesite and diorite are two common igneous rocks that have a mineral composition intermediate between granitic and basaltic rocks. Andesite is fine-grained and contains plagioclase feldspar and pyroxene minerals, while diorite is coarse-grained and composed of plagioclase feldspar, amphibole, and other minerals.
What is andesitic magma made of?
Andesitic magma is composed of a mixture of silica-rich minerals such as plagioclase feldspar and amphibole. It also contains smaller quantities of pyroxene, biotite, and quartz. Its intermediate composition gives it characteristics of both basaltic and rhyolitic magmas.
What is the definition of ocean composition?
Yes.
Are pyroclasts formed by basaltic magma or andesitic magma?
Pyroclasts can be formed by both basaltic and andesitic magma. Basaltic magma typically forms pyroclastic materials like scoria and ash, while andesitic magma can produce a variety of pyroclasts including volcanic bombs and pumice. The type of pyroclasts produced depends on factors such as the composition of the magma and the eruption style.
What type of lava forms mt hood?
Mt. Hood is primarily composed of andesitic lava, which is intermediate in composition between basaltic and rhyolitic lavas. Andesitic lava is characterized by its viscosity and tendency to form lava domes, lava flows, and pyroclastic flows.
