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What rock has parallel bands of dark and light mineral grains?
Gneiss is a type of rock that has parallel bands of dark and light mineral grains. These bands are a result of the rock being subjected to high temperatures and pressures during its formation, causing the minerals to align in distinct layers.
A rock has alternating layers of dark and light colors the rock has visible quartz crystals and does not contain any fossils where was this rock most likely formed?
This rock is likely a type of metamorphic rock called gneiss. Gneiss forms under high heat and pressure conditions deep within the Earth's crust. The alternating layers of dark and light colors are a result of the rock's minerals recrystallizing into bands.
What is a type of metamorphic rock that has parallel layers?
Foliated rock has parallel layers.
What metamorphic rock type has flat layers?
Foliated rock
What type of rock forms from layers of sediment?
Sedimentary rock.
What type of rock have flat layers?
Sedimentary rocks have flat layers.
What type of rock forms in layers?
That would be sedimentary rock, and (honorable mention) occasionally metamorphic rock.
What type of rock has flat layers?
Rase
Why are mineral bands in metamorphic rocks light and dark colored?
Mineral bands are light and dark colored because they are different types of rock. In the rock cycle different types of rock can stack on top of each other, this can be subducted into the earth near the Mantle where there is enough pressure the rocks can start to melt and change. Because different types of rock metamorphose into different rocks you can have many layers in a type of rock. These can be light or dark colors depending on the rock.
What type of rock is on the weymouth coast?
The rock found on the Weymouth coast is mainly limestone, specifically the Purbeck Formation. This type of rock is known for its light color and layers of fossilized marine life, including shells and corals, from the Jurassic period.
Which type of pluton is completely parallel to the rock layers into which it intrudes?
A sill is a type of pluton that is completely parallel to the rock layers into which it intrudes. Sills are formed when magma is injected between pre-existing rock layers and then solidifies. The resulting igneous rock body is typically flat-lying and can be found sandwiched between the surrounding rock layers.
What type of rock is usually identified with layers?
Lime
