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Both andesite and basalt are volcanic rocks. Basalt is denser and generally darker than andesite. It has a lower silica content and more iron and magnesium. It most often forms from pahoehoe or a'a lava flows and occasionally scoria cinders. Andesite forms from more slica-rich material and is often found in the form of ash, pumice, or volcanic bombs. It may also sometimes form block lava flows, which are more viscous that a'a or pahoehoe.
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.
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Which rock is most felsic out of rhyolite andesite and basalt?
Rhyolite is the most felsic rock out of rhyolite, andesite, and basalt. Felsic rocks have a higher silica content and are associated with continental crust. Rhyolite is typically light in color and has a high silica content, making it more felsic compared to andesite and basalt.
Which rock has an intermediate composition?
Andesite is a rock with an intermediate composition. It contains minerals such as plagioclase feldspar, amphibole, and pyroxene, giving it a balance between light and dark minerals. Andesite forms from the cooling of magma with a composition between basalt and granite.
What kind of rock andesite?
Andesite is an igneous rock that is typically fine-grained, intermediate in composition between basalt and rhyolite. It contains minerals such as plagioclase feldspar, pyroxene, and amphibole. Andesite is commonly found in volcanic regions associated with subduction zones.
How would you explain the abundance of andesite and basalt in leyte?
The abundance of andesite and basalt in Leyte is due to its location along the Pacific Ring of Fire, a region known for volcanic activity. The presence of nearby volcanoes and tectonic plate movements has led to the formation of these volcanic rocks in Leyte. Additionally, the continued activity of these geological processes over time has contributed to the abundance of andesite and basalt in the region.
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 Rock?
Yes
Is andesite basic or acid?
Andesite is classified as a neutral to slightly acidic rock. It has an intermediate composition, falling in between basic (such as basalt) and acid (such as granite) rocks on the scale of acidity.
Which rock is most felsic out of rhyolite andesite and basalt?
Rhyolite is the most felsic rock out of rhyolite, andesite, and basalt. Felsic rocks have a higher silica content and are associated with continental crust. Rhyolite is typically light in color and has a high silica content, making it more felsic compared to andesite and basalt.
What is the igneous rock between granite and basalt?
Andesite is considered an intermediate rock between granite (felsic igneous rock) and basalt (mafic igneous rock), based on chemical composition.
Which rock has an intermediate composition?
Andesite is a rock with an intermediate composition. It contains minerals such as plagioclase feldspar, amphibole, and pyroxene, giving it a balance between light and dark minerals. Andesite forms from the cooling of magma with a composition between basalt and granite.
Name a volcanic rock?
Obsidian, basalt, andesite, pumice.
What are the types of extrusive volcanic deposit?
Ignimbrite, Andesite, Basalt, Rhyolite
Melting of wet basalt under pressure can consistently produce?
andesite
What is an andesite?
a dark, fine-grained, brown or grayish volcanic rock that is intermediate in composition between rhyolite and basalt.
What kind of rock andesite?
Andesite is an igneous rock that is typically fine-grained, intermediate in composition between basalt and rhyolite. It contains minerals such as plagioclase feldspar, pyroxene, and amphibole. Andesite is commonly found in volcanic regions associated with subduction zones.
What is andestic?
If u are referring to andesitic basalt, lava having a greater silica content than that of basalt. Andesite is a rock.
How would you explain the abundance of andesite and basalt in leyte?
The abundance of andesite and basalt in Leyte is due to its location along the Pacific Ring of Fire, a region known for volcanic activity. The presence of nearby volcanoes and tectonic plate movements has led to the formation of these volcanic rocks in Leyte. Additionally, the continued activity of these geological processes over time has contributed to the abundance of andesite and basalt in the region.
