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Do Rocks formed during metamorphism depend on Earths Magnetic Field?
No, the rocks formed during metamorphism do not depend on Earth's magnetic field. Metamorphism is the process where existing rocks are altered by high pressure and temperature without being melted. The formation of metamorphic rocks is primarily influenced by the chemical composition of the original rock and the conditions present during metamorphism, such as pressure and temperature.
Why does the color of sedimentary rock change during metamorphism?
The color of sedimentary rock changes during metamorphism due to minerals. New minerals introduced can change the color of the rock.
What two properties of rock change during metamorphism?
During metamorphism, the texture and mineralogy of a rock can change. Texture refers to the size, shape, and arrangement of grains within the rock, while mineralogy refers to the types of minerals present in the rock.
Why can the chemical composition of rock be changed during metamorphism?
It is an open system; atoms can move into and out of the rock.
Which is not a change that may occure during metamorphism?
The rock material melts
What changes when hot fluids migrating into and out of a rock during metamorphism?
grade
What does the radiometric date of metamorphic rock most likely represent?
heated during metamorphism
What physical change in metamorphic rock signals the end of metamorphism?
from what i know there is no physical change that signals the end of metamorphism but there is a physical change during the process of metamorphism. during metamorphism the shape of the rock changes due to force of stress this is a physical change. (a physical change is when the shape or composition ofa substance e.g. rock has changed). by the way i am only 12
How do chemically active fluids affect metamorphism?
Chemically active fluids can enhance metamorphism by facilitating mineral reactions and changing the mineral assemblage in a rock. These fluids can introduce new elements into the rock, catalyze reactions, and promote recrystallization, leading to the development of new minerals or changes in texture and structure of the rock during metamorphism.
What aligns in parallel bands do to added pressure on a rock during metamorphism?
The parallel bands in a rock, also known as foliation, can rotate or deform in response to added pressure during metamorphism. This can lead to the alignment of minerals or elongation of grains in the direction of pressure, ultimately resulting in a reorientation of the rock's structure.
When hot fluids migrate into and out of a rock during metamorphism what will change?
During metamorphism, the minerals present in the rock can recrystallize, change in size, or reorganize their structure due to the influence of the hot fluids. The chemical composition of the rock may also change as elements are exchanged between the rock and the fluids. Overall, these processes can lead to the formation of new minerals and textures in the rock.
What is the difference between regional and contact metamorphism?
Regional metamorphism is the creation of metamorphic rock from large geographically significant processes like plate tectonics. Contact metamorphism is the creation of metamorphic rock from the proximity of an existing rock to a heat source provided by a plutonic intrusion.
