Structural Final Year 2

Question 1

Cleavage is a _______ temperature version of foliation

Answer 1

Low

Question 2

Stylolites are often formed in limestone. They are a type of _____ cleavage

Answer 2

Compaction

Question 3

What cleavage type is described as parallel foliation of very fine-grained minerals with less that 0.01 mm spacing between layers

Answer 3

Slatey Cleavage

Question 4

What cleavage type is described as formations for fine grained rocks that align in square or rhombus fracture

Answer 4

Continuous Cleavage

Question 5

What cleavage type is defined by the planes that cut across earlier foliation such as bedding, causing an irregular fracture

Answer 5

Disjunctive cleavage

Question 6

What cleavage type is typically a series of microfolds formed when a previous foliation is shortened?

Answer 6

Crenulation cleavage

Question 7

Cleavage planes inside folded layers are often parallel to the _______ of the fold

Answer 7

Axial trace

Question 8

The best rock cleavage forms in rock that has lots of______

Answer 8

Clay

Question 9

What does a foliation layer labeled as S0 mean?

Answer 9

S0 is bedding

Question 10

What does a foliation layer labeled as S1 mean?

Answer 10

S1 = 1st deformation event

Question 11

What does a foliation layer labeled as S2 mean?

Answer 11

S2 = 2nd deformation event

Question 12

What does foliation mean?

Answer 12

any planar fabric or layering in the rock

Question 13

What are the components of fabric?

Answer 13

Mineral grains
Clasts
Compositional layers

Question 14

What fabric forms at the same time the rock does?

Answer 14

Primary fabric

Question 15

What fabric is made post rock formation and has foliations

Answer 15

Tectonic fabrics

Question 16

Boudinage limb

Answer 16

Sausage formation
__—-___—-___
—___—-___—-

Question 17

Pencil Cleavage

Answer 17

Looks like a lumber stack