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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.
What rock types does the Cotopaxi volcano have?
The Cotopaxi volcano in Ecuador is primarily composed of andesite and dacite rock types. Andesite is a volcanic rock with an intermediate composition between basalt and rhyolite, while dacite has a similar composition to andesite but with more silica content.
What is the composition of magma of popocatepetl?
A mixture of dacite (65wt% SiO2) and basaltic andesite (53wt% SiO2).
What kinds of rocks formed when mt Vesuvius erupted?
When Mount Vesuvius erupted, it produced igneous rocks such as basalt, andesite, and dacite due to the volcanic activity. These rocks are created from the cooling and solidification of molten magma. Additionally, the eruption may have also produced pyroclastic rocks such as pumice and volcanic ash.
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 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.
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.
What type of lava does the composite volcano has?
It varies in composition, but is usually andesite, dacite, or rhyolite.
What rock types does the Cotopaxi volcano have?
The Cotopaxi volcano in Ecuador is primarily composed of andesite and dacite rock types. Andesite is a volcanic rock with an intermediate composition between basalt and rhyolite, while dacite has a similar composition to andesite but with more silica content.
What is the composition of magma of popocatepetl?
A mixture of dacite (65wt% SiO2) and basaltic andesite (53wt% SiO2).
What kinds of rocks formed when mt Vesuvius erupted?
When Mount Vesuvius erupted, it produced igneous rocks such as basalt, andesite, and dacite due to the volcanic activity. These rocks are created from the cooling and solidification of molten magma. Additionally, the eruption may have also produced pyroclastic rocks such as pumice and volcanic ash.
What are some extrusive of igneous rocks?
== == Rhyolite, basalt, pumice, obsidian, andesite, dacite, tuff, welded tuff, scoria.
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 types of igneos rocks are found in Mount Tambora?
Mount Tambora in Indonesia primarily consists of andesite and dacite rocks. These igneous rocks were formed from the cooling and solidification of magma beneath the Earth's surface. Andesite is a fine-grained rock that is intermediate in composition between basalt and rhyolite, while dacite is a fine-grained volcanic rock with a similar composition to andesite but with higher silica content.
Does mt st helens erupt andesite rock?
In some cases, yes. However the most recent eruptions have produced dacite.
What was the lava from Mt St Helen's made out of when it erupted in 1980?
The material erupted in the 1980 eruption of Mount St Helens was of a composition known as dacite. Minerals common in dacite are primarily quartz, potassium feldspar, and albite. However most of the dacite from the 1980 eruption came out as ash and pumice, which are varieties of volcanic glass. Although the chemical components were there, the material cooled to quickly for the minerals to form.
Which extrusive rock has the same composition as andesite?
Dacite is an extrusive rock that has a composition similar to andesite. Both rocks are rich in silica and belong to the intermediate composition category. They form from the volcanic eruption of magma that is intermediate in composition between felsic and mafic.
