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What changes sedimentary rocks into metamorphic rocks?
- a)Erosion and deposition
- b)Heat and pressure
- c)Cooling and solidification
- d)Weathering and erosion
Correct answer is option 'B'. Can you explain this answer?
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What changes sedimentary rocks into metamorphic rocks?a)Erosion and de...
Metamorphic rocks are formed when igneous or sedimentary rocks undergo changes due to heat and pressure, resulting in new minerals and textures.
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What changes sedimentary rocks into metamorphic rocks?a)Erosion and de...
Heat and Pressure
Metamorphic rocks are formed from pre-existing rocks (sedimentary, igneous, or other metamorphic rocks) that undergo changes due to heat and pressure deep within the Earth's crust. This process is known as metamorphism.
Heat
- High temperatures are generated by the Earth's internal heat or by the proximity to a magma chamber.
- The heat causes the minerals within the rock to recrystallize, changing their structure and texture.
Pressure
- Pressure is exerted on the rocks as they are buried deep within the Earth's crust.
- The pressure causes the minerals to align in a specific orientation and can also cause the rock to fold or deform.
Transformation
- The combination of heat and pressure alters the mineral composition and texture of the rock, transforming it into a metamorphic rock.
- The original rock may have been a sedimentary rock like shale or sandstone, or an igneous rock like granite, but through metamorphism, it becomes a new type of rock such as marble or gneiss.
Conclusion
In conclusion, metamorphic rocks are formed from existing rocks that undergo changes in response to the intense heat and pressure deep within the Earth's crust. These changes result in the formation of new minerals, textures, and structures, giving rise to a diverse range of metamorphic rocks.
Metamorphic rocks are formed from pre-existing rocks (sedimentary, igneous, or other metamorphic rocks) that undergo changes due to heat and pressure deep within the Earth's crust. This process is known as metamorphism.
Heat
- High temperatures are generated by the Earth's internal heat or by the proximity to a magma chamber.
- The heat causes the minerals within the rock to recrystallize, changing their structure and texture.
Pressure
- Pressure is exerted on the rocks as they are buried deep within the Earth's crust.
- The pressure causes the minerals to align in a specific orientation and can also cause the rock to fold or deform.
Transformation
- The combination of heat and pressure alters the mineral composition and texture of the rock, transforming it into a metamorphic rock.
- The original rock may have been a sedimentary rock like shale or sandstone, or an igneous rock like granite, but through metamorphism, it becomes a new type of rock such as marble or gneiss.
Conclusion
In conclusion, metamorphic rocks are formed from existing rocks that undergo changes in response to the intense heat and pressure deep within the Earth's crust. These changes result in the formation of new minerals, textures, and structures, giving rise to a diverse range of metamorphic rocks.
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What changes sedimentary rocks into metamorphic rocks?a)Erosion and depositionb)Heat and pressurec)Cooling and solidificationd)Weathering and erosionCorrect answer is option 'B'. Can you explain this answer?
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What changes sedimentary rocks into metamorphic rocks?a)Erosion and depositionb)Heat and pressurec)Cooling and solidificationd)Weathering and erosionCorrect answer is option 'B'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What changes sedimentary rocks into metamorphic rocks?a)Erosion and depositionb)Heat and pressurec)Cooling and solidificationd)Weathering and erosionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What changes sedimentary rocks into metamorphic rocks?a)Erosion and depositionb)Heat and pressurec)Cooling and solidificationd)Weathering and erosionCorrect answer is option 'B'. Can you explain this answer?.
What changes sedimentary rocks into metamorphic rocks?a)Erosion and depositionb)Heat and pressurec)Cooling and solidificationd)Weathering and erosionCorrect answer is option 'B'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What changes sedimentary rocks into metamorphic rocks?a)Erosion and depositionb)Heat and pressurec)Cooling and solidificationd)Weathering and erosionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What changes sedimentary rocks into metamorphic rocks?a)Erosion and depositionb)Heat and pressurec)Cooling and solidificationd)Weathering and erosionCorrect answer is option 'B'. Can you explain this answer?.
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