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Metamorphic Rock
Metamorphic rocks are formed from other types of rocks. The original rock is exposed to conditions such as heat or pressure. Carbon turning to diamonds while under extreme pressure is an example of a metamorphic rock.
653 Questions
In a metamorphic rock the alignment of the crystals or minerals determines whether the rock is?
Foliated or nonfilated
Where would you find exposed metamorphic rocks?
Because metamorphic rocks from very deep underground, they have to be brought to the surface by some geologic processes before they are exposed. There are many processes that could do this, but the most common is a mountain building event. Mountainous areas often have very large areas of exposed metamorphic rocks.
What B do minerals sometimes form metamorphic rocks?
They form when layers of minerals lay on top of each other
What do minerals sometimes form in metamorphic rocks?
They form when layers of minerals lay on top of each other
A banded texture
A blueschist is a variety of metamorphic rock containing glaucophane.
True or false granite is a metamorphic rock?
It is false. Granite is a igneous rock that was formed from magma cooling and hardening.
Why does marble rarely contain fossils?
This is because of the way that it is formed.
When you have a rock that is formed through metamorphisis then it has been created through heat and pressure acting on other rocks.
Fossils are inherently delicate things and therefore precious little would withstand the conditions that are required to create marble - and therefore marble hardly ever contains fossils as a direct result of this
What does it mean if mineral grains in a metamorphic rock are arranged in bands?
Foliated rock. If you are looking for whether the rock has no bands it is non-foliated.
-Anonymous person but very smart ! :)
According to the rock cycle what is formed into metamorphic rock?
Basically it can be the other two types of rock in the cycle; igneous and sedimentary. Given a sufficient amount of heat and pressure is applied, any rock turns into a metamorphic rock. If a sedimentary rock such as mudstone gets metamorphosed it turns into slate. If on the other hand, an igneous type rock such as granite it can be transformed into a gneiss (high grade) or a shist (mid-grade).
Do all metamorphic rocks have layers?
No. The layering or foliation only occurs when there is a variation in the composition of the original rock. If the rock is homogeneous, then there will be no foliation.
It is a medium-grade metamorphic rock with a preponderance of the platy mineral graphite.
Slate magazine targets what kind of audiences?
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