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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 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 the difference in composition between a dacite and an andesite?
The main difference between dacite and andesite lies in their silica content. Dacite has a higher silica content than andesite, making it more viscous. Dacite also typically contains more quartz and less mafic minerals than andesite.
What is the Hardness of Andesitic on the Mohs scale of hardness?
Andesite typically has a hardness of around 5-6 on the Mohs scale of hardness. This places it in the same range as materials like glass and orthoclase feldspar.
What is the difference between andesite and basalt?
Andesite is an intermediate volcanic rock that contains more silica and is lighter in color compared to basalt. Basalt is a fine-grained volcanic rock that is darker in color and forms from rapidly cooling lava at Earth's surface.
What is andestic?
If u are referring to andesitic basalt, lava having a greater silica content than that of basalt. Andesite is a rock.
Which volcanoe have eruptions of andesite and dacite?
Andesite and dacite are commonly associated with stratovolcanoes, such as Mount St. Helens in the United States and Mount Merapi in Indonesia. Both of these volcanoes have experienced eruptions that involved andesitic and dacitic magma compositions.
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 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 kind of lava flows from Popocatepetl?
Popocat?petl produces a mixture of andesitic and dacite lava in the current cycle of activity. Andesitic, or Basaltic Andesite, is black volcanic rock that contains 55% silica. Dacite, on the other hand, is an igneous, volcanic rock that has a composition that is between Andesite and Rhyolite.
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 is the difference in composition between a dacite and an andesite?
The main difference between dacite and andesite lies in their silica content. Dacite has a higher silica content than andesite, making it more viscous. Dacite also typically contains more quartz and less mafic minerals than andesite.
Are Basaltic lavas are generally hotter and more viscous than andesite lavas?
No, basaltic lavas are typically hotter and less viscous than andesite lavas. Basaltic lavas have lower silica content, which results in their lower viscosity and ability to flow more easily. Andesite lavas, on the other hand, have higher silica content and are more viscous.
Are Basaltic lavas generally hotter and more viscous than andesite lavas?
Basaltic lavas are generally hotter and less viscous than andesite lavas. Basaltic lavas have lower silica content, which makes them flow more easily. Andesite lavas, on the other hand, have higher silica content, making them cooler and more viscous.
What is the Hardness of Andesitic on the Mohs scale of hardness?
Andesite typically has a hardness of around 5-6 on the Mohs scale of hardness. This places it in the same range as materials like glass and orthoclase feldspar.
What is the main difference between andesite and diorite?
Both are igneous rocks of intermediate coposition.
What type of lava comes from what volcano?
Shield volcanoes will erupt basaltic lava. Cinder cones erupt basaltic lava or basaltic andesite lava. Stratovolcanoes often erupt andesite lava, but may erupt basaltic or rhyolitic lava and all intermediate types as well.
