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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.
Where is the gemstone garnet found?
Garnet gemstones are commonly found in various regions around the world including Africa, India, Brazil, and Australia. Additionally, garnets can also be found in the United States, with notable deposits in states such as Arizona and Idaho.
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 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.
How is garnet obtained from the earth and processed?
Garnet is a common component in well metamorphosed schists. Occasionally, a specimen will be good enough to be considered a jewel, but most garnet is valued as an abrasive - the garnet paper at your hardware store. There are about 20 various members of this family.
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 is Mica Schist and Phyllites Protolith?
Mica schist is a metamorphic rock composed predominantly of mica minerals, typically biotite and muscovite, that exhibit a foliated texture. Phyllites are also metamorphic rocks with a fine-grained texture that is typically more dense and compact than schists. The protolith of both mica schist and phyllites is usually shale, mudstone, or other fine-grained sedimentary rocks that undergo metamorphism under heat and pressure.
Where is the gemstone garnet found?
Garnet gemstones are commonly found in various regions around the world including Africa, India, Brazil, and Australia. Additionally, garnets can also be found in the United States, with notable deposits in states such as Arizona and Idaho.
What has the author David Joseph Hall written?
David Joseph Hall has written: 'Compositional variations in biotites and garnets from kyanite and sillimanite zone mica schists, Orange area, Massachusetts and New Hampshire' -- subject(s): Biotite, Garnet
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 from?
The protolith of marble was limestone or dolomite.
What was formed?
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.
