Sedimentary

Question 1

Bed

Answer 1

is a sedimentary rock that has been laid down under a specific set of environmental conditions

Question 2

Bedding plane

Answer 2

is a line that separates each bed and is parallel to the surface of deposition

Question 3

Bed differences

Answer 3

Colour, grain size, grain shape, sorting, composition, bed thickness

Question 4

Laminations

Answer 4

Thin beds

Question 5

Mechanically formed sedimentary rocks

Answer 5

Clastic

Question 6

Chemically formed sedimentary rocks

Answer 6

Chemically precipitated - non clastic

Question 7

Biologically formed sedimentary rocks

Answer 7

Rocks formed from living organisms

Question 8

Clasts

Answer 8

These are the dominant larger fragments that usually wake up the majority of the rock

Question 9

Matrix

Answer 9

This is made up of finer grains that occur between the clasts

Question 10

Cement

Answer 10

Often there is a third type of grain present, too small to be seen by the naked eye

Question 11

Unconformity

Answer 11

Represents a break in the layers of rocks when no sediment was deposited

Question 12

Angular unconformity

Answer 12

Rocks above and below the unconformity are not parallel

Question 13

Parallel unconformity

Answer 13

Rocks above and below the unconformity are parallel