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How are igneous and metamorphic rocks related?
Both gneiss and migmatite are late-stage, high grade metamorphic rocks.
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.
Which metamorphic rocks are mostly likely to have formed at the highest temperatures and pressures?
Gneiss is a Plutonic metamorphic rock which is formed under high pressure and temperature condition at Katazone or Lower Zone.
What is Altered variety of granite formed during cooling down period?
Altered varieties of granite formed during the cooling period include gneiss, schist, and migmatite. These rocks are created when the original granite undergoes intense heat and pressure, causing recrystallization and alteration of the minerals in the rock.
What does slate turn into if it is squashed even more?
If slate is subjected to even more pressure, it can undergo metamorphism, transforming into schist or gneiss, depending on the conditions of temperature and pressure. This process alters its mineral composition and texture, resulting in a more foliated or banded appearance. Ultimately, with sufficient heat and pressure, it may further evolve into granite or even migmatite if melting occurs.
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.
How do you use migmatite?
Normally you don't use it by it's self. it is combined with other things. It is found in fish and birds and even brains sometimes. look on wikipedia. that is where I'm giving you this information from.
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 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
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.
What do you call a metamorphic rock that melts beneath the Earth's surface?
At the point of total melt, it would be called magma. Metamorphic rock that exhibits partial melting is called migmatite.
