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l
(a)
(b)
l
l
foliation
(c)
(d)
folded bed
l 1
joi nt
l 2
cleavage planes
(e)
Figure A8.5 Block diagrams illustrating several different types of lineations. (a) Striations (slickenlines) on a
fault plane. (b) Stretching lineation defi ned by deformed (elongated) mineral grains. (c) A rock with both foliation
(fl attening) and lineation (stretching). (d) Crenulation lineation defi ned by the hinge lines of microfolds.
(e) Intersection lineations in a fold. Two different lineations are shown: the intersection of cleavage on a
folded bedding plane, and the intersection of cleavage on a joint plane. (Modifi ed from Park 1989.)
 
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