cleavage Flashcards
1
Q
what is cleavage found in?
A
incompentant sedimentary rocks containing platy minerals
2
Q
what are platy minerals?
A
clay minerals and mica
3
Q
what is cleavage
A
planes of weakness along which a plate will split
4
Q
example of cleavage rock
A
shale
5
Q
what does incompetent rock mean?
A
rocks are plastic and will not fracture
