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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 kind of rock can magma turn into?
Magma can solidify and cool to form igneous rocks such as granite, basalt, or andesite, depending on the composition and cooling rate of the magma.
Which igneous rocks exhibit aphanitic texure?
Rocks with an aphanitic texture have fine-grained crystals that are too small to be seen by the naked eye. Common igneous rocks with this texture include basalt, andesite, and rhyolite. These rocks cool quickly at the Earth's surface, preventing larger crystals from forming.
What igneous rocks are formed from from hardened lava?
Igneous rocks formed from hardened lava include basalt, andesite, and rhyolite. Basalt is a fine-grained, dark-colored rock commonly found in oceanic crust, while andesite and rhyolite are intermediate to felsic in composition and typically found in volcanic arcs or continental volcanic regions.
What is volcanic equivalent of norite?
The volcanic equivalent of norite is andesite. Both rock types are classified as intermediate in composition, with norite being a plutonic igneous rock and andesite being its volcanic counterpart formed from the same magma source.
