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The "earth's interior" is thought to be composed of magma and, at the core, molten iron and perhaps some nickel. If we look out on the crust of the earth, some 75-80% of the surface of our planet is composed of sedimentary rock. That leaves some 20-25% left to be composed of igneous and metamorphic rock. Links can be found below to relevant material in Wikipedia, where knowledge is free.
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True or false most of the earth's crust is made up of a mix of metamorphic and igneous rock?
False. The Earth's crust is primarily composed of igneous rocks, while metamorphic rocks make up a smaller percentage. Sedimentary rocks also play a significant role in the composition of the Earth's crust.
Is metamorphic rock crystalline or composed of crystals?
Metamorphic rock is typically composed of interlocking crystals formed under high pressure and temperature conditions. This means that metamorphic rocks are crystalline in nature, with the crystals often aligned along a preferred orientation.
The melting of metamorphic or igneous rock forms what substance?
The melting of metamorphic or igneous rock forms magma.
Which two of the three rock types appear to be made primarily of intergrown crystals?
Igneous and metamorphic rocks often appear to be made primarily of intergrown crystals due to the process of cooling and solidification for igneous rocks and recrystallization for metamorphic rocks. Sedimentary rocks are typically composed of compacted and cemented sediment particles rather than intergrown crystals.
Is opal a sedimentary igneous and metamorphic rock?
Opal is neither a sedimentary, igneous, nor metamorphic rock. It is actually a mineraloid composed of hydrated silica that is formed from silica-rich solutions at low temperature, often found in sedimentary rocks like sandstone or volcanic areas.
What does the earths crust have?
it is composed of igneous sedimentry and metamorphic
What percentage of Earth's crust is metamorphic rock?
According to 118 118, metamorphic rocks make up about 85% of the earth's Continental crust. According to wiki.answers, 75-80% of the earth's surface is composed of sedimentary rock. 20-25% left to be composed of igneous and metamorphic rock.
What layer of the earth is composed of igneous metamorphic and sedimentary rock?
The crust.
What energy source drives the processes that form igneous and metamorphic rocks is found in?
earth's interior
What provides the heat that drives the formation of igneous and metamorphic rock?
Earths hot interior
What provides the heat that drives the formation of igneous and metamorphic rocks?
Earths hot interior
Are unakite rocks Sedimentary rocks Metamorphic rocks or Igneous rocks?
Unakite rocks are metamorphic rocks formed from the alteration of igneous rocks. They are typically composed of pink feldspar, green epidote, and clear quartz.
What percentage of earth's crust is composed of igneous and metamorphic rock?
Approximately 95% of Earth's crust is composed of igneous and metamorphic rock. This includes rocks like granite, basalt, and schist, formed from the cooling and solidification of magma and the alteration of existing rocks under high heat and pressure. Sedimentary rocks make up the remaining 5% of the crust.
Does the sun driver the processes that form igneous and metamorphic rocks?
No. Heat from the interior of the Earth trying to reach the surface drives lithospheric plate movements which are mostly responsible for the formation of igneous and metamorphic rocks.
True or false most of the earth's crust is made up of a mix of metamorphic and igneous rock?
False. The Earth's crust is primarily composed of igneous rocks, while metamorphic rocks make up a smaller percentage. Sedimentary rocks also play a significant role in the composition of the Earth's crust.
What do all three rocks have in common?
All three rock types, sedimentary, igneous, and metamorphic, are composed of minerals.
Is metamorphic rock crystalline or composed of crystals?
Metamorphic rock is typically composed of interlocking crystals formed under high pressure and temperature conditions. This means that metamorphic rocks are crystalline in nature, with the crystals often aligned along a preferred orientation.
