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Can an igneous rock like granite be formed into a metamorphic rock like gneiss?
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∙ 12y ago
Heat And Pressure
Wiki User
∙ 12y ago
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What term is used to describe metamorphic rocks with a banded texture?
The two main groups of metamorphic rocks are foliated and non-foliated. Foliated metamorphic rocks show layering and parallel alignment of flat mineral crystals (ex. micas). The "banded texture in metamorphic rocks" is one of the specific kinds of foliated textures. It is referred to as gneissic banding. Essentially, this texture displays alternating layers of light and dark minerals. These rocks are called gneiss- the light bands form from quartz and feldspars, while the dark ones form from ferromagnesian minerals.
Why do the crystals in gneiss line up in bands?
rast ts
How is gneiss similar to granite?
Granite is an igneous rock and gneiss is a metamorphic rock.
Can igneous rock like granite can be formed into a metamorphic rock like gneiss?
Heat And Pressure
What geologic process change granite igneous rock into gneiss metamorphic rock?
Heat and pressure cause granite to change to gneiss.
Is glassy igneous rocks intrusive or extrusive?
Granite gneiss is a metamorphic rock and would not be considered extrusive (rock formed from molten material at or near the surface).
Is gneiss metamorphic?
A gneiss is a metamorphic rock. Metamorphic rocks are created by the alteration of rocks by heat and pressure. Therefore, a gneiss may be created from an igneous rock in which case it would be called an orthogneiss.
How can gneiss be identified?
A banded metamorphic rock formed from the re-heating and re-pressuring of granite and similar igneous rocks.
A metamorphic rock formed form granite?
Gneiss
Granite is an example of?
Slate and gneiss are examples of metamorphic rock.
What type of rock would result from the metamorphism of granite?
Granite is Igneous rock. It crystallizes from hot melt (magma). Metamorphic rocks can be found associated with granite as result of their contact with country (surrounding) rocks. This will be a contact metamorphism. Metamorphism of granite it self results into granitic gneisses which are coarse foliated rocks.
What are some examples of the three rock types?
Igneous:GraniteBasaltDioriteObsidianRhyolitePumiceMetamorphic: SlateMica SchistQuartziteGabbroMarblePhylliteMetaconglomerateSkarnSedimentary:LimestoneChalkCoquinaShaleSandstoneMudstoneConglomerateBreccia
What rock group does gneiss belong?
Granite is an intrusive igneous rock, meaning it has solidified underground as opposed to solidification on the surface.
What are the similarities between brick and metamorphic rock?
Both igneous and metamorphic rocks are formed by pressure and some kind of heat
