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What rocks have visible layers or elongated minerals grains called?
Rocks that have visible layers or elongated mineral grains are typically referred to as sedimentary rocks. These layers, known as strata, are formed by the accumulation of sediment over time, while the elongated mineral grains often indicate a process called foliation, which is common in metamorphic rocks. Examples of sedimentary rocks include sandstone and limestone, while schist and slate are examples of foliated metamorphic rocks.
What condition produces the distinct layers of flat and elongated minerals in the foliated metamorphic rocks?
The condition that produces distinct layers of flat and elongated minerals in foliated metamorphic rocks is directed pressure, which causes the minerals to align perpendicular to the direction of pressure. This pressure helps give the rock its characteristic layered structure, known as foliation.
Does metamorphic rock have layers?
Not exactly. Some metamorphic rocks have foliation, which can appear similar to the layers of sedimentary rock. Foliation develops from mineral grains being oriented by pressure, rather than the deposition of layers.
A metamorphic rock with visible layers or bands is said to be what?
A metamorphic rock with visible layers or bands is said to be foliated. The layers are due to the alignment of minerals or the presence of alternating light and dark bands. Examples of foliated metamorphic rocks include slate, schist, and gneiss.
What is a type of metamorphic rock that has parallel layers?
Foliated rock has parallel layers.
Metamorphic rocks that show layers of dark minerals alternating with layers of light minerals are classified as?
foliated metamorphic rocks. The alternating layers are caused by the alignment and segregation of minerals during the metamorphic process, resulting in a banded or layered appearance. Examples of foliated metamorphic rocks include gneiss, schist, and slate.
How many layers do metamorphic layers have?
a metamorphic rock is a rock that has been changed from one rock to another by heat and/or pressure.....they amount of layers would depend on what kind of rock.....all rocks have a different amount of layers sorry
What are foliated metamorphic rocks?
Foliated rocks have layers in them. We often refer to the layers as Banding.
What is the name of a rock that has twisted layers?
metamorphic rock
What Metamorphic rock that don't have layers?
non-foliated.
What are metamorphic rocks without layers called?
gneiss
What are metamorphic rocks with banded layers called?
Gneiss
