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Metamorphism - Wikipedia
https://en.wikipedia.org/wiki/Metamorphism
WEBMetamorphism is the transformation of existing rock (the protolith) to rock with a different mineral composition or texture. Metamorphism takes place at temperatures in excess of 150 °C (300 °F), and often also at elevated pressure or in the presence of chemically active fluids, but the rock remains mostly solid during the transformation.
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Metamorphism | Types, Processes & Effects | Britannica
https://www.britannica.com/science/metamorphism
WEBMetamorphism, mineralogical and structural adjustments of solid rocks to physical and chemical conditions differing from those under which the rocks originally formed. Changes produced by surface conditions such as compaction are usually excluded. The most important agents of metamorphism include.
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Metamorphic rock | Definition, Formation, & Facts | Britannica
https://www.britannica.com/science/metamorphic-rock
WEBApr 5, 2024 · The word metamorphism is taken from the Greek for “change of form”; metamorphic rocks are derived from igneous or sedimentary rocks that have altered their form (recrystallized) as a result of changes in their physical environment. Metamorphism comprises changes both in mineralogy and in the fabric of the original rock.
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3.8: Metamorphic Rocks - Geosciences LibreTexts
https://geo.libretexts.org/Bookshelves/Geology/Fundamentals_of_Geology_(Schulte)/03%3A_Rocks_and_the_Rock_Cycle/3.08%3A_Metamorphic_Rocks
WEBINTRODUCTION. A metamorphic rock used to be some other type of rock, but it was changed inside the Earth to become a new type of rock. The word metamorphism comes from ancient Greek words for “change” (meta) and “form” (morph). The type of rock that a metamorphic rock used to be, prior to metamorphism, is called the protolith.
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Metamorphic Rocks - National Geographic Society
https://www.nationalgeographic.org/encyclopedia/metamorphic-rocks/
WEBOct 19, 2023 · sedimentary rock. noun. rock formed from fragments of other rocks or the remains of plants or animals. uplift. noun. elevation of the Earth's surface due to tectonic or other natural activity. Metamorphic rocks start as one type of rock and—with pressure, heat, and time—gradually change into a new type of rock.
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4.3: Metamorphic Rocks - Geosciences LibreTexts
https://geo.libretexts.org/Courses/Lumen_Learning/Book%3A_Earth_Science_(Lumen)/04%3A_Rocks/4.03%3A_Metamorphic_Rocks
WEBThere are two main types of metamorphism: Contact metamorphism—occurs when magma contacts a rock, changing it by extreme heat (Figure 4.14). Regional metamorphism—occurs when great masses of rock change over a wide area due to pressure exerted on rocks at plate boundaries.
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Metamorphic Rocks - Formation, Types, Examples - Science …
https://sciencenotes.org/metamorphic-rocks-formation-types-examples/
WEBFeb 24, 2024 · Metamorphic rocks represent one of the three major classes of rocks, the others being igneous and sedimentary. Each class has its unique formation processes, characteristics, and significance in Earth’s geology. What Are Metamorphic Rocks?
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6 Metamorphic Rocks – An Introduction to Geology
https://opengeology.org/textbook/6-metamorphic-rocks/
WEBMetamorphism occurs when solid rock changes in composition and/or texture without the mineral crystals melting, which is how igneous rock is generated. Metamorphic source rocks, the rocks that experience the metamorphism, are called the parent rock or protolith, from proto – meaning first, and lithos- meaning rock.
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9 Introduction to Metamorphism – Open Petrology - OpenGeology
https://opengeology.org/petrology/9-intro-to-metamorphism/
WEBMetamorphism often involves fluids that promote chemical reaction. Most metamorphic fluids are H 2 O-rich. Major kinds of metamorphism include burial metamorphism, regional metamorphism, contact metamorphism, dynamic metamorphism, hydrothermal metamorphism, and impact metamorphism.
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Metamorphism and the evolution of plate tectonics | Nature
https://www.nature.com/articles/s41586-019-1462-2
WEBAug 7, 2019 · Metamorphism and the evolution of plate tectonics. Robert M. Holder, Daniel R. Viete, Michael Brown & Tim E. Johnson. Nature 572 , 378–381 ( 2019) Cite this article. 13k Accesses. 137 Citations....
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