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They are all extrusive igneous (i.e. volcanic) rocks of intermediate to felsic composition.
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What type of lava do strato volcanoes have?
The textbook answer would be andesite. In reality stratovolcanoes are highly variable and have been known to erupt all of the types of lava observed on modern earth from basalt to rhyolite, sometimes from the same volcano. One stratovolcano even erupts unique carbonatite lava.
What are examples of igneous rock?
nothing
How is andesite different from rhyolite and basalt?
There are rocks that are extrusive (formed quickly on the surface of the earth) or intrusive (formed within the earth under slow cooling). Both types of extrusive or intrusive rocks can vary in composition from mafic (high iron and magnesium content) to silicic (less heavy ions like Fe and Mg, but with more of the lighter elements like Ca, Na, K, etc.). Extrusive rocks range from most mafic to less mafic as such: Basalt, Andesite, Rhyolite (and are all fine-grained b/c they cooled quickly). Intrusive rocks that cool more slowly and have larger crystals range from most mafic to less mafic as such: Gabbro, Diorite, Granite. Basalt and gabbro have a similar composition, just the crystal size differs from different cooling rates (same for rhyolite and granite).
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.
Which the following is a fine grained light colored extrusive igneous rock?
fine grained extrusive rocks can contain Potassium and Plagioclase Feldspar, Quartz, Biotite, Amphibole, Pyroxene and Olivine. these are all the choices for every igneous rocks
What type of lava do strato volcanoes have?
The textbook answer would be andesite. In reality stratovolcanoes are highly variable and have been known to erupt all of the types of lava observed on modern earth from basalt to rhyolite, sometimes from the same volcano. One stratovolcano even erupts unique carbonatite lava.
What are examples of igneous rock?
nothing
What types of extrusive igneous rocks are formed by Hekla's lava?
Hekla has erupted all of the different compositions of magma. So you can find basalt, andesite, and rhyolite as well as all the intermediate rock types formed from the different lavas erupted by Hekla.
How is andesite different from rhyolite and basalt?
There are rocks that are extrusive (formed quickly on the surface of the earth) or intrusive (formed within the earth under slow cooling). Both types of extrusive or intrusive rocks can vary in composition from mafic (high iron and magnesium content) to silicic (less heavy ions like Fe and Mg, but with more of the lighter elements like Ca, Na, K, etc.). Extrusive rocks range from most mafic to less mafic as such: Basalt, Andesite, Rhyolite (and are all fine-grained b/c they cooled quickly). Intrusive rocks that cool more slowly and have larger crystals range from most mafic to less mafic as such: Gabbro, Diorite, Granite. Basalt and gabbro have a similar composition, just the crystal size differs from different cooling rates (same for rhyolite and granite).
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.
Which the following is a fine grained light colored extrusive igneous rock?
fine grained extrusive rocks can contain Potassium and Plagioclase Feldspar, Quartz, Biotite, Amphibole, Pyroxene and Olivine. these are all the choices for every igneous rocks
Does rhyolite of oxygen in it?
Yes. All igneous rocks contain oxygen.
Does rhyolite have silicon in it?
Yes. Almost all rocks contain silicon.
What type of plate boundary can produce large amount of rhyolitic lava?
Not sure if there's a good answer for this question... but a subducting plate boundary is good for making volcanoes. The problem is that during subduction, there's an oceanic plate going under a continental plate. Oceanic plates are generally more mafic (more metallic stuff than rhyolite) than the continental plate. They get subducted, get hot and melt a little, and then head back up a little inland to make volcanoes. If they come up slow, I *think* they tend to pick up more chunks of the continental crust they're ascending through, making them more felsic (opposite of mafic.) Which could make your rhyolite lava. But it doesn't work all the time... for example the Andes have been coughing up andesite (Andes-ite lol) for quite a while, which is of course not rhyolite.
Which igneous rocks are coarse grained due to slow cooling?
All molten rock is capable of cooling quickly into fine-grained rocks, but here are some common fine-grained igneous rocks: Basalt Obsidian Andesite Rhyolite Tuff (a rock made from volcanic ash)
What are all the different types of igneous rocks?
There are three main types of igneous rocks. Plutonic means it is of magnetic origin. It is intrusive. Examples of this include granite, gabbro and peridotite. Another type is volcanic. This means it is produced from lava and is extrusive, including rhyolite or basalt. Pyroclastic means it formed from particulate material violently ejected from a volcanoe.
What are the statue of Easter made of?
The Easter Island head statues (moai) are carved from volcanic rock from Rano Raraku. These rocks include trachyte, red scoria, and basalt (all of these are igneous rocks because they came from a volcano). The eyes are made of black and white obsidian rocks.
