Geology Final

Question 1

Law of Superposition

Answer 1

In an undisturbed sequence the oldest layers are at
the bottom and the youngest layers are at the top

Question 2

Law of Original Horizontality

Answer 2

Sedimentary layers and lava flows were originally
deposited as horizontal sheets.

Question 3

Law of Lateral Continuity

Answer 3

Lava flow and strata extend laterally in all
directions until they thin (pinch out) or reach the
edge of their depositional basin.

Question 4

Law of Cross Cutting

Answer 4

Any feature that cuts across a rock body must be
younger than the rock that it cuts across.

Question 5

Law of Inclusions

Answer 5

Any piece of rock that is included within another
rock body must be older than the rock body it is
within

Question 6

Law of Unconformities

Answer 6

Unconformities represent gaps in geologic record
when rocks were not deposited and layers were
eroded

Question 7

Angular Unconformity

Answer 7

Forms between two
strata not parallel to
each other

Question 8

Disconformity

Answer 8

Forms between parallel
sedimentary strata

Question 9

Nonconformity

Answer 9

Forms between older
metamorphic or
igneous rocks and
younger sedimentary
strata deposited on top
of them

Question 10

A reverse fault occurs due to extension occurring on a block of rock

Answer 10

false

Question 11

What type of fault would be found in a compressional environment

Answer 11

Reverse Fault

Question 12

A normal fault is when the footwall drops down relative to the hanging wall.

Answer 12

true

Question 13

An oblique fault is when you have both vertical and horizontal movement on a
fault.

Answer 13

true