What is the example of metamorphic rock?

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asked Sep 29, 2022 in Other-Education by Fishfood (1,860 points)
What is the example of metamorphic rock?

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answered Oct 10, 2022 by Wisner (12,490 points)
The example of metamorphic rock would be marble.

Take for example a marble countertop that marble that the countertop is made from is a metamorphic rock that has gone through changes deep under the ground.

The main difference between igneous and metamorphic rocks is that metamorphic rocks are rocks that started out as other rocks such as igneous rocks and then formed into other rocks from heat and pressure underground.

And Igneous rocks are rocks that are formed from melted rock that is deep inside the Earth.

In simple words metamorphic rocks are rocks that began as some other type of rocks but then have been substantially changed from the rocks original sedimentary, igneous or other form.

The Metamorphic rocks are created when rocks are subjected to intense heat and high pressure as well as hot mineral rich fluids.

Metamorphic rocks are layered because of regional metamorphism which causes layered or platy structure in rocks that is called foliation.

The foliated rocks are the result of intense pressure and sometimes also the result of heat.

Metamorphic rocks are hardest because they have gone through many processes during the metamorphic process which makes them harder than other rocks.

Sedimentary rocks are generally less hard than igneous or metamorphic rocks - this is because the lithification process (how a sedimentary rock becomes a rock) does not involve heat or pressure, and sedimentary rocks are kind of just "smooshed" together.

The minerals that are only found in metamorphic rocks are some garnet, andalusite, kyanite, staurolite and sillimanite.

Other minerals that can be found in metamorphic rocks are quartz, feldspars, micas, pyroxenes, hornblende and olivines.

Two forces that create metamorphic rocks are pressure and heat.

There are 3 metamorphic rocks which are hornfels, quartzite and marble rocks.

The 3 types of foliation are gneiss, schist and slate.

Metamorphic rocks are classified as non foliated and foliated rocks.

The strongest metamorphic rock is Eclogite which is an extreme metamorphic rock that is formed by regional metamorphism of basalt under very high pressures and temperatures.

The two types of metamorphic rocks are non foliates and foliates rocks.

Foliated metamorphic rocks split along cleavage lines which are parallel to minerals which make up the rock.

Rocks change during metamorphism because of heat and pressure.

Metamorphism occurs because some minerals are stable only under certain conditions of pressure and temperature.

When pressure and temperature change, chemical reactions occur to cause the minerals in the rock to change to an assemblage that is stable at the new pressure and temperature conditions.

Metamorphism in the rock cycle is the process that rocks go through where the rocks are altered from pressure and or heat which changes the rocks appearance entirely.

The most common form of metamorphism is regional metamorphism which is caused by high temperature and pressure which resulted from thickening of the crust and plate tectonics.

The 3 types of metamorphism are contact, regional and dynamic metamorphism.

The two main types of metamorphism are contact metamorphism and regional metamorphism.

Metamorphism is a process in which rocks start out as another type of rock and then change into another form of rock.

The types of metamorphism are Dynamic, regional and contact.

Contact Metamorphism occurs when magma comes in contact with an already existing body of rock.

When this happens the existing rocks temperature rises and also becomes infiltrated with fluid from the magma.

Metamorphic rocks are rocks that started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form.

Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

Metamorphism is caused by rocks undergoing changes in temperatures in pressure and are also sometimes subjected to hydrothermal fluids and differential stress.

The Metamorphism occurs because some minerals are stable only under certain conditions of pressure and temperature.

The most common form of metamorphism is regional metamorphism which is how most metamorphic rocks form.

These regional metamorphism rocks were typically exposed to tectonic forces and associated high pressures and temperatures.

The importance of metamorphism is that metamorphic rocks and minerals have economic value and because mineralogical and structural adjustment of solid rocks to physical and chemical conditions that have been imposed at depths below the near surface zones of weathering and diagenesis and which differ from conditions under which the rocks in question originated.

Metamorphism is the alteration of the composition or structure of a rock by heat, pressure, or other natural agency.

An example of Metamorphism is the transformation of existing rock to rock with a different mineral composition or texture.

Metamorphism is the process that changes preexisting rocks into new forms because of increases in temperature, pressure, and chemically active fluids.

Metamorphism may affect igneous, sedimentary, or other metamorphic rocks.

The three types of metamorphism are Contact, Regional, and Dynamic metamorphism.

Contact Metamorphism occurs when magma comes in contact with an already existing body of rock.

Metamorphism occurs because some minerals are stable only under certain conditions of pressure and temperature.

When pressure and temperature change, chemical reactions occur to cause the minerals in the rock to change to an assemblage that is stable at the new pressure and temperature conditions.

The word metamorphism is taken from the Greek for “change of form”; metamorphic rocks are derived from igneous or sedimentary rocks that have altered their form (recrystallized) as a result of changes in their physical environment.

New minerals are created either by rearrangement of mineral components or by reactions with fluids that enter the rocks.

Pressure or temperature can even change previously metamorphosed rocks into new types.

Metamorphic rocks are often squished, smeared out, and folded.

There are two major kinds of metamorphism: regional and contact.

Regional metamorphism.

Most metamorphic rocks are the result of regional metamorphism (also called dynamothermal metamorphism).

Metamorphic rocks are broadly classified as foliated or non-foliated.

Non-foliated metamorphic rocks do not have aligned mineral crystals.

Non-foliated rocks form when pressure is uniform, or near the surface where pressure is very low.

Regional metamorphism is the most common form of metamorphism that occurs in broad areas.

It is caused by high temperature and pressure that resulted from the thickening of the crust and plate tectonics.

Most metamorphism takes place in a zone that begins several kilometers below the surface and extends into the upper mantle.

We often find metamorphic rocks in mountain ranges where high pressures squeezed the rocks together and they piled up to form ranges such as the Himalayas, Alps, and the Rocky Mountains.

Metamorphic rocks are forming deep in the core of these mountain ranges.

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