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Metamorphic. By contrast, igneous rocks form from lava or magma, and sedimentary rock form from sediment. Those things are formed from previous rocks, but constitute intermediate stages: igneous and sedimentary rocks are formed indirectly from previous rocks.
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What is the only kind of rock that can form directly from magma?
By definition. A sedimentary rock is formed from sediments, chemical, organic, or clastic. A metamorphic rock has undergone a change in mineral alignment or mineral composition due to heat and/or pressure. An igneous rock forms from solidification of magma via cooling.
Which igneous rock forms when basaltic magma hardens?
Intrusive rock
What results from compression between rock layers?
it forms a sedimentary rock
How extrusion forms?
An extrusion is an igneous rock layer formed when lava flows onto Earth's surface and hardens. Extrusions are always younger than the rocks below it.
How are igneous rocks that have high levels of quartz classified?
A rock is considered igneous if it formed directly from the cooling of molten rock.
Can heat form an igneous rock or a metamorphic rock?
metamorphic because it melts the rock and forms another
What is the series of processes in which a rock forms changes from one type to another is destroyed and forms again by geological processes?
Rock cycle
What is the only kind of rock that can form directly from magma?
By definition. A sedimentary rock is formed from sediments, chemical, organic, or clastic. A metamorphic rock has undergone a change in mineral alignment or mineral composition due to heat and/or pressure. An igneous rock forms from solidification of magma via cooling.
Can sedimentary rock form directly from metamorphic rock?
yes it can- metamorphic has to change into one type of rock after it is changed from another.
Which process is always required before igneous rock forms?
Melting-solidification.
WHAT KIND OF ROCK FORMS WHEN LAYERS OF PARTICLES SETTLE ON TOP OF ONE ANOTHER AND HARDEN?
The rock that forms when layer of particles settle on top of each other and harden is a sedimentary rock.
How is it that crosscutting feature is always younger than the rock layers in cuts across?
A crosscutting feature is always younger than the rock layers it cuts through because the feature always forms after the rock layers have been formed, making the rock layers older.
How is it that crosscuting feature is always younger than the rock layer it cuts across?
A crosscutting feature is always younger than the rock layers it cuts through because the feature always forms after the rock layers have been formed, making the rock layers older.
What are the steps needed to form metamorphic rock from magma?
Metamorphic rock is not formed directly from magma. Igneous rock is formed from the solidification of magma and lava.
What kind of rock forms when any type of solid rock changes into another type of rock because of increased pressure or temperature?
Those are metamorphic rocks, changed from one type to another by extreme pressure.
What does the rock cycle demonstrate about the three types of rock?
It shows that the three forms of rocks are interelated to one another and each leads to the other.
Forms in metamorphic rock?
A metamorphic rock forms by heat and pressure
