GEOLOGY
PHYSICAL GEOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pressure and temperature increase as you go up to the crust
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The deeper the rock depth, the higher the pressure and temperature
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Foliation happens as there is an increase in the pressure and temperature
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Magma cannot bake the surrounding rocks due to the difference in temperature
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Detailed explanation-1: -Metamorphism occurs because some minerals are stable only under certain conditions of pressure and temperature. When pressure and temperature change, chemical reactions occur to cause the minerals in the rock to change to an assemblage that is stable at the new pressure and temperature conditions.
Detailed explanation-2: -Question: How do temperature and pressure affect the metamorphic rock formation? (5 points) If the rocks are buried deep, temperature, and pressure will get increased. Contact metamorphism creates no-foliated metamorphic rocks. Magma will bake the surrounding rocks due to difference in temperature.
Detailed explanation-3: -As depth increases, temperature and pressure increase too. At a certain depth, temperature and pressure are so high that it may affect the mineralogy, texture or chemical composition of rocks. Rocks undergo a process called metamorphism.
Detailed explanation-4: -Regional Metamorphism The deeper rocks are within the stack, the higher the pressures and temperatures, and the higher the grade of metamorphism that occurs. Rocks that form from regional metamorphism are likely to be foliated because of the strong directional pressure of converging plates.
Detailed explanation-5: -During metamorphism, protolith chemistry is mildly changed by increased temperature (heat), a type of pressure called confining pressure, and/or chemically reactive fluids. Rock texture is changed by heat, confining pressure, and a type of pressure called directed stress.