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What is the protolith of phyllite?
The protolith of phyllite is shale or mudstone that has been subjected to low-grade metamorphism. This metamorphic process causes the rock to recrystallize, resulting in a foliated texture with fine-grained mica minerals like muscovite and chlorite.
What is the protolith of a quartzite?
The protolith of a quartzite is a sedimentary rock called sandstone. Quartzite forms when sandstone undergoes metamorphism, typically due to high heat and pressure, causing the quartz grains in the sandstone to recrystallize and merge together.
What is the protolith of hornfels?
The protolith of hornfels is typically a fine-grained sedimentary rock such as shale or mudstone. These rocks undergo metamorphism due to high temperatures and pressure, resulting in the formation of hornfels.
Why the mineral of a metamorphic rock usually different from the protolith?
Remineralization can occur because of an exchange of fluids or because the squeezing out of fluids by pressure and heat create an environment where hydrous minerals cannot exist and are replaced with non-hydrous minerals.
What is the rock called that existed before it is changed into a metamorphic rock?
The original rock that exists before it undergoes metamorphism is called a parent rock or protolith. This parent rock can be any type of rock, such as sedimentary, igneous, or another metamorphic rock, that is subjected to high temperature and pressure to form a metamorphic rock.
What is the meaning of Protolith in geology?
"protolith" refers to the original composition of an altered rock. for example, a basalt was the protolith to a rock thats presently a greenschist.
What rock type is a protolith of a metamorphic rock?
The protolith of a metamorphic rock can be any pre-existing rock type, such as shale, limestone, basalt, or granite. The type of metamorphic rock that forms from a protolith depends on factors like temperature, pressure, and the mineral composition of the protolith.
What the protolith is of serpentine?
peridotite
What is a protolith of sandstone?
A protolith of sandstone is a sedimentary rock made up of sand-sized mineral grains or rock fragments that have been compacted and cemented together over time. It can form from the erosion and deposition of pre-existing rocks like granite, quartzite, or basalt.
What are the protoliths of Schist and Anthracite coal?
The protolith of schist is typically shale or slate, which undergoes metamorphism to form schist. The protolith of anthracite coal is primarily bituminous coal, which is subjected to higher temperature and pressure conditions during metamorphism to convert into anthracite coal.
What was formed?
The protolith of marble was limestone or dolomite.
What was formed from?
The protolith of marble was limestone or dolomite.
What is the protolith of phyllite?
The protolith of phyllite is shale or mudstone that has been subjected to low-grade metamorphism. This metamorphic process causes the rock to recrystallize, resulting in a foliated texture with fine-grained mica minerals like muscovite and chlorite.
What is the protolith of soapstone?
The protolith of soapstone is usually ultramafic rocks such as serpentinite or peridotite. These rocks undergo metamorphism due to high heat and pressure, resulting in the formation of soapstone.
What is the protolith of a quartzite?
The protolith of a quartzite is a sedimentary rock called sandstone. Quartzite forms when sandstone undergoes metamorphism, typically due to high heat and pressure, causing the quartz grains in the sandstone to recrystallize and merge together.
What is the protolith of hornfels?
The protolith of hornfels is typically a fine-grained sedimentary rock such as shale or mudstone. These rocks undergo metamorphism due to high temperatures and pressure, resulting in the formation of hornfels.
What is the protolith of meta conglomerate?
The protolith of metaconglomerate is a sedimentary rock called conglomerate. Conglomerate is composed of rounded gravel-sized clasts that are cemented together. Through the process of metamorphism, this sedimentary rock undergoes changes in temperature and pressure to form metaconglomerate.
