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Where would you find minerals that are stable under low temperature and pressure?
Wiki User
∙ 13y ago
At the earth's surface. The deeper you go in the earth, the higher the pressure and temperature, and the minerals that are stable under low temperature and pressure become unstable, and turn into other minerals that are stable under those conditions.
Wiki User
∙ 13y ago
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How do high temperatures and pressures cause fossils to change into minerals or rocks to change their nature?
The changes take place because of recrystallization or realignment of existing minerals, or creation of minerals from existing assemblages that that can only be formed under certain specific ranges of temperature or pressure.
Why are some minerals stable several kilometers underground but unstable at Earths surface?
This is because the minerals are no longer under P + T and as a result are more unstable
What rock formed from high pressure with bands of minerals?
Foliated metamoprhic rocks such as gneiss form under high pressure conditions and contain bands of minerals (foliation).
Can rocks be recycled?
Any rock can become a sedimentary rock (even another sedimentary rock) is it is broken down by erosion, and the resulting sediment is then redeposited, undergoes compaction and consolidation and then lithification (lithification is just the process of becoming a rock)Any rock can become a metamorphic rock if it is subject to sufficient pressure and temperature as a result of deep burial (which will result in both high heat and high pressure) or mostly pressure e.g from the pressure of two continental plates colliding.examples - mudstone under high pressure becomes slateLimestone under moderately high temperature and pressure becomes marble.Granite under intense pressure and Temperature short of actual remelting becomes a gneiss, if the greiss undergoes even greater pressure and temperature it can become a schist.Finally, any rock subject to sufficient temperature as a result of very deep burial will melt, become magma, and ofthe magma them eventually cools enough to crystallise you have a new igneous rock
What is a fosil?
A fossil is the prehistoric remains of a plant or animal. After an animal or plant dies, it may be buried under many layers of mud, sand, or rock, and under intense pressure a replica of that animal or plant is formed from minerals.
What happen to minerals when rocks becomes a metamorphic rocks?
Metamorphic rocks are created from rocks that are deformed by tectonic forces and/or are brought to temperature that are much different from those that they were first formed in (usually hotter). The effect of increased temperature is the growth of minerals from others that are no longer stable under the changed pressure and temperature conditions (e.g. diamond is formed from graphite under very high pressure and garnet growths at high temperatures and pressures from aluminium rich usually sedimentary rocks). The effect of shear stress on the rock (i.e. directed force creating not only compression but also deformation) is the change of shape of minerals as well as rotation and alignment of platy minerals into bands. These processes lead to the usually banded appearance of metamorphic rocks.
Does an increase in pressure make magma cool?
Pressure does not change the temperature of rocks, but it does change the melting point. A rock that is under a lot of pressure, even if it is very hot, will stay solid, even if that same rock at the same temperature under lower pressure would be melted. This happens because intense pressure can hold the structure of the minerals together more easily, in a more solid form.So, with an increase in pressure, the melting point of a rock also increases.
What is the operational temperature and pressure of depropanizer?
the temperature from 260f to 280f under pressure of 320 to 325 psig
How do high temperatures and pressures cause fossils to change into minerals or rocks to change their nature?
The changes take place because of recrystallization or realignment of existing minerals, or creation of minerals from existing assemblages that that can only be formed under certain specific ranges of temperature or pressure.
Why are some minerals stable several kilometers underground but unstable at Earths surface?
This is because the minerals are no longer under P + T and as a result are more unstable
How does sand change in to sand stone?
sand is put under pressure, water seeps in with other minerals and the minerals crystalize
Explain how air pressure is related to temperature?
Under controlled situations , as the temperature increases the air pressure decreases.:)
Is not an property of an index mineral?
forms only in a sedimentary rock
Dissolved minerals trapped in magma under tremendous pressure provide the force for a volcanic eruption?
No. Dissolved gasses trapped under pressure provide the force.
What happens to minerals during metamorphism?
Metamorphic rocks are created from rocks that are deformed by tectonic forces and/or are brought to temperature that are much different from those that they were first formed in (usually hotter). The effect of increased temperature is the growth of minerals from others that are no longer stable under the changed pressure and temperature conditions (e.g. diamond is formed from graphite under very high pressure and garnet growths at high temperatures and pressures from aluminium rich usually sedimentary rocks). The effect of shear stress on the rock (i.e. directed force creating not only compression but also deformation) is the change of shape of minerals as well as rotation and alignment of platy minerals into bands. These processes lead to the usually banded appearance of metamorphic rocks.
What rock formed from high pressure with bands of minerals?
Foliated metamoprhic rocks such as gneiss form under high pressure conditions and contain bands of minerals (foliation).
The hardness of naturally occuring minerals depends on what?
how the grains interlock and the pressure it formed under
