Unconformites

Question 1

Angular Unconformity

Answer 1

Horizontal rock layers are tilted/uplifted as earth’s forces deform them

Erosion and weathering wear the tilted layers

New sediment is deposited on top

Question 2

Disconformity

Answer 2

Flat lying sedimentary rocks are eroded

New layers deposit on top

Question 3

Nonconformity

Answer 3

Metamorphic/Igneous rocks are uplifted and eroded

Sedimentary rocks are deposited on top

Question 4

Unconformity

Answer 4

Gap in rock layer due to erosion or periods without deposition

Represent major gaps of time