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Why are the names intrusive and extrusive appropriate for the two types of igneous rocks?
Wiki User
∙ 13y ago
Because intrusive rock forms as magma cools below Earth's surface. Extrusive on the other hand, forms as lava cools on Eath's surface.
Wiki User
∙ 13y ago
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Why can two igneous rocks have the same minerals but different names?
The rocks may have different textures
What are some names of extrusive igneous rocks?
== == Rhyolite, basalt, pumice, obsidian, andesite, dacite, tuff, welded tuff, scoria.
What type of rock is an igneous rock?
Igneous rocks are usually classified first by their color index. The color index is separated into four categories. Felsic rocks are the lightest and are composed of mostly quartz and potassium feldspar. Intermediate rocks are the second lightest and are made up of mostly plagioclase feldspar, pyroxene, amphibole, and biotite. Mafic rocks are made up of plagioclase feldspar, pyroxene, and amphibole. Ultramafic is made up of mostly olivine, with pyroxene and amphibole.
Is it possible for two igneous rocks to have the same mineral constituents but different names?
Yes, depending on the conditions under which it solidified.
How many different types of rock are there?
there are 3 types of rocks- Igneous Rocks, Sedimentary Rocks, and Metamorphic RocksThere are three main type of rocks in the world. The names are Igneous, Sedimentary, and Metamorphic.The three main types, or classes, of rock are sedimentary, metamorphic, and igneous and the differences among them have to do with how they are formed. Sedimentary.
Why are the names intrusive and extrusive appropriate for the types of igneous rocks?
Because intrusive rock forms as magma cools below Earth's surface. Extrusive on the other hand, forms as lava cools on Eath's surface.
Some igneous rocks cool at the surface and some cool underground. What are the names of these two types?
Underground = intrusive/plutonic aboveground = extrusive/volcanic
Why can two igneous rocks have two same minerals but different names?
Although chemically equivalent, they would be different in their method of formation. Granite is an intrusive igneous rock, cooled from magma under the surface. The rock rhyolite is the chemical equivalent of granite, but formed on the surface, making it an extrusive igneous rock. Intrusive rocks have larger crystals.
Why can two igneous rocks have the same name minerals but different names?
Although chemically equivalent, they would be different in their method of formation. Granite is an intrusive igneous rock, cooled from magma under the surface. The rock rhyolite is the chemical equivalent of granite, but formed on the surface, making it an extrusive igneous rock. Intrusive rocks have larger crystals.
Why can two igneous rocks have the same minerals but different names?
The rocks may have different textures
What are some names of intrusive igneous rocks?
Granite, Gabbro, Diorite, Syenite, Monzonite, Tonalite
What are the names of a plutonic solid?
Solid plutonic rocks are intrusive igneous rocks such as granite and gabbro.
What are some names of extrusive igneous rocks?
== == Rhyolite, basalt, pumice, obsidian, andesite, dacite, tuff, welded tuff, scoria.
What are the names for volcanic rock?
well it could be igneous rock if you are talking about specific types (there are a lot) , but its called tephra and/or pyroclastic rock that is thrown from the volcano... the smallest of tephra is ash, then lapilli then bombs, then blocks.
Names given to the different types of igneous intrusions are attributed to their?
Names given to the different types of igneous intrusions are attributed to their
What type of rock is an igneous rock?
Igneous rocks are usually classified first by their color index. The color index is separated into four categories. Felsic rocks are the lightest and are composed of mostly quartz and potassium feldspar. Intermediate rocks are the second lightest and are made up of mostly plagioclase feldspar, pyroxene, amphibole, and biotite. Mafic rocks are made up of plagioclase feldspar, pyroxene, and amphibole. Ultramafic is made up of mostly olivine, with pyroxene and amphibole.
What are other names for igneous rock?
Volcanic rocks
