Map Interpretation

Question 1

Law of Original Horizontality

Answer 1

Sequence of layers was deposited horizontally. Therefore, oldest layers are on bottom and youngest layers are on top

Question 2

Law of Superposition

Answer 2

Oldest layers on bottom and youngest layers on top, assuming no overturned beds during deformation.

if beds are overturned, need absolute ages.

Question 3

Principle of Cross Cutting Relationships

Answer 3

The feature that is cut is older than the feature that cuts across it.

rocks may be cut by intrusion, faulting, or unconformities.

Question 4

Principle of Lateral Continuity

Answer 4

when sedimentary layers are deposited, they cover a large area extending in all directions

Question 5

Floral and Faunal Succession

Answer 5

A sequence of age may be developed by looking at evolutionary development of fossils

Question 6

Law of Inclusions

Answer 6

Inclusions in rocks are older than the rocks that host them