QQuestionGeology
QuestionGeology
Which of the following is an example of a non-foliated metamorphic rock?
A. Slate
B. Schist
C. Marble
D. Gneiss
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Answer
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Step 1:I'll solve this problem step by step:
Step 2:: Understand Foliated vs.
Non-Foliated Metamorphic Rocks - Foliated metamorphic rocks have a layered or banded appearance due to mineral alignment during metamorphism - Non-foliated metamorphic rocks do not have this layered texture
Step 3:: Analyze Each Rock Type
A. Slate: Foliated metamorphic rock (formed from shale under low-grade metamorphism) B. Schist: Foliated metamorphic rock (formed from slate under higher-grade metamorphism) C. Marble: Non-foliated metamorphic rock (formed from limestone or dolomite) D. Gneiss: Foliated metamorphic rock (formed under high-grade metamorphic conditions)
Step 4:: Identify the Non-Foliated Rock
- Looking at the options, Marble is the only rock that does not have a layered or banded appearance - Marble forms when limestone is subjected to heat and pressure, but the minerals recrystallize without developing a preferred orientation
Final Answer
Marble is the example of a non-foliated metamorphic rock.
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