Metamorphic Rock

Yes, and it looks very gneiss.

If slate is sufficiently heated and compressed it becomes phyllite.

a Black Rock

compressed marble

Regional

That they have undergone some form of change.

For more information on metamorphic rocks please see the related question.

Heat

Im learning this in school, and the answer is look for a "rock cycle" and that answers all questions like yours :)

Metamorphic

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Yes, pressure is a metaphoric agent along with heat, and hydrothermal solution. Rocks are classified by the process in which they are formed, meta means change and morph means form.

Yes

Heat, along with applied pressures, either from depth of burial or from tectonic forces on rock.

Limestone is the parent of rock of non foliated metamorphic. This is a very old type of rock.

Marble can be found in many mountainous places in the world. In particular, it is found mainly in Italy, China, Turkey and Mexico, but also in Belgium, France, Great Britain, Spain, India, and in many parts of the United States, such as Vermont, Colorado, Tennessee and Alabama.

Hope this helps!

Dehydration in geological terms is a process which occures during metamorphosis. As a rock moves to a higher pressure and temprature, say as it is traveling down a subduction zone the water will gradually be taken out of it. The deeper the rock travels, the more dehydrated it becomes untill eventually there is no water left in it and it is compleatly dry.

Metamorphic rocks are formed from the alteration of existing rocks due to heat, pressure, or chemical processes deep within the Earth's crust. They can be created from igneous, sedimentary, or existing metamorphic rocks that undergo changes in mineral composition and texture. Examples of metamorphic rocks include marble, quartzite, and schist.

Yes, metamorphic rock that lacks banding is referred to as non-foliated. Unlike foliated metamorphic rocks, which have distinct layers or bands due to the alignment of minerals under pressure, non-foliated rocks have a more uniform texture. Common examples of non-foliated metamorphic rocks include marble and quartzite. These rocks typically form under conditions of high temperature and pressure without significant directional stress.

To produce a metamorphic rock, pre-existing rocks (either igneous, sedimentary, or other metamorphic rocks) must undergo metamorphism, which involves exposure to high temperatures, high pressures, and/or chemically active fluids. This process alters the mineral composition and structure of the original rock without melting it. The resulting metamorphic rock often exhibits foliation or distinctive banding due to the alignment of minerals under pressure. Ultimately, the transformation enhances the rock's density and stability.

Yes, metamorphic rocks can undergo weathering as they change. Weathering involves the breakdown of rocks at the Earth's surface due to environmental factors like wind, water, and temperature changes. During metamorphism, rocks may also be exposed to these conditions, leading to alterations in their mineral composition and structure. Thus, the process of weathering can occur simultaneously with metamorphic changes, especially when rocks are uplifted and exposed to surface conditions.

When metamorphic rock melts, it undergoes a transformation into magma rather than lava, as lava refers specifically to molten rock that has erupted onto the Earth's surface. The process of melting involves the conservation of mass, meaning that the total amount of material remains constant; the minerals within the metamorphic rock are transformed into liquid magma. If this magma eventually erupts and becomes lava, the original elements and compounds are conserved throughout these processes, simply changing in state and location.

In Jamaica, metamorphic rocks are primarily found in the parishes of St. Ann and St. Mary. These areas are part of the Blue Mountains and the northern limestone region, where geological processes have transformed original rock types into metamorphic forms. Notable examples include schist and gneiss, which can be observed in these parishes.

Gneiss is a Plutonic metamorphic rock which is formed under high pressure and temperature condition at Katazone or Lower Zone.

You can find metamorphic rock from the Middle Proterozoic era in the Adirondack Mountains of New York. This region is known for its ancient geological formations, including gneiss and schist, which have undergone significant metamorphism. Additionally, areas around the Hudson Highlands and the Taconic Mountains also contain older metamorphic rock formations. These locations offer a glimpse into the geological history of the Earth dating back over a billion years.

The two metamorphic rocks that typically exhibit the largest crystals are gneiss and schist. Gneiss often features large, visible grains of quartz and feldspar, while schist is characterized by its shiny, platy minerals like mica that can form significant crystal sizes. These large crystals usually develop in environments with high temperatures and pressures, allowing minerals to grow and recrystallize.