The movement of tectonic plates is relatively slow, occurring over millions of years. The average rate of movement is estimated to be around 2-15 centimeters per year (cm/year) or approximately 20-150 kilometers per million years (km/Ma). However, the rate of movement can vary depending on the locatRead more
The movement of tectonic plates is relatively slow, occurring over millions of years. The average rate of movement is estimated to be around 2-15 centimeters per year (cm/year) or approximately 20-150 kilometers per million years (km/Ma). However, the rate of movement can vary depending on the location and type of plate boundary. For example, the rate of movement along the mid-Atlantic Ridge is around 2.5 cm/year, while the rate of movement along the San Andreas Fault in California is around 5 cm/year.
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In geology, a protolith refers to the original rock from which a metamorphic rock is formed. It represents the parent rock that undergoes changes in mineralogy, texture, and structure during the process of metamorphism. The protolith can be any type of rock, such as sedimentary, igneous, or anotherRead more
In geology, a protolith refers to the original rock from which a metamorphic rock is formed. It represents the parent rock that undergoes changes in mineralogy, texture, and structure during the process of metamorphism. The protolith can be any type of rock, such as sedimentary, igneous, or another metamorphic rock, and the specific characteristics of the protolith influence the resulting metamorphic rock.
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