A buried body of shale is subjected to differential stress, new clay minerals fo
ID: 235260 • Letter: A
Question
A buried body of shale is subjected to differential stress, new clay minerals form to align in the plane of foliation; this is an example of ____________.
A) pressure solution
B) recrystallization
C) neocrystallization
D) plastic deformation
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Which of the following processes CANNOT occur in the formation of metamorphic rock?
A) realignment of minerals so that they develop a preferred orientation
B) segregation of minerals into layers of different compositions
C) solid-state rearrangement of atoms or ions to create a new assemblage of minerals
D) complete remelting of the rock, followed by solidification to form a new rock
Explanation / Answer
1) C) neocrystallization
reason : it is a metamorphic process that results in the formation of new minerals. This happens when shale that contains clay minerals change to produce the new mineral
2)D) complete remelting of the rock, followed by solidification to form a new rock
reason : all the statements except D) occur in the formation
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