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What color is migmatite?
thee color of migmatite is green and white
What is the name of the secondary granite that results from the half-meltdown of a gneiss?
Migmatite.
What is thought to form by partial melting and in situ crystallization of the melted portion?
migmatite
Is a migmatite foliated or non foliated metamorphic rock?
Difficult to give you a precise answer, migmatites are composed of a leucosome which is new material crystallized from incipient melting and a mesosome which is old material that resisted melting. These two materials may form a fine fabric which imparts a foliation to the rock. The leucosome may also be incoherently folded. Also if the migmatite is forming from a foliated source, the foliation may persist. Thus migmatites are metamorphic rocks that show characteristics of incipient melting and they may or may not show a foliation too, the foliation is not a critical characteristic of a rock being a migmatite.
How are igneous and metamorphic rocks related?
Both gneiss and migmatite are late-stage, high grade metamorphic rocks.
What type of rock was migmatite made from?
Migmatite is a type of rock that forms from the partial melting of pre-existing metamorphic rocks, typically schist or gneiss. This process results in a mixed texture that includes both solid metamorphic rock and newly formed igneous material, often characterized by light-colored granitic components interspersed with darker, more mafic sections. The formation of migmatite occurs under high temperature and pressure conditions, usually during tectonic processes in continental crust.
What is the parent rock of migmatite?
The parent rock of migmatite is typically a metamorphic rock like gneiss or schist that has undergone partial melting due to high temperatures and pressures. This partial melting results in the formation of a mixed rock composed of both igneous and metamorphic features.
What has the author Karl Richard Mehnert written?
Karl Richard Mehnert has written: 'Migmatites and the origin of granitic rocks' -- subject(s): Migmatite
Where is Migmatite found?
Migmatite is typically found in regions that have undergone high-grade metamorphism and partial melting, such as mountain belts and areas where deep crustal rocks have been exposed due to tectonic forces. Common locations include the interiors of continents where older rocks have been deeply buried and subjected to intense heat and pressure.
What protolith would be most valuable in determining the pressure and temperature of metamorphism?
Possibly shale, as it goes through a series of metamorphic transitions from slate to migmatite.
What type is rock is formed is rock undergoing a metamorphic change melts?
igneous
Is granite banded?
Yes, granite can be banded in appearance due to the presence of different minerals and variations in the cooling process during its formation. These bands are typically called gneiss or migmatite.
