Section 3

Question 1

Angular Unconformity

Answer 1

a type of geological feature where younger sedimentary rock layers are deposited on top of older, tilted, or folded rock layers that have been eroded.

Question 2

Correlation

Answer 2

stratigraphic columns from around the world are stacked to represent geological time – this is the geological column. Global correlation of strata led to the development of the geological column

Question 3

Nonconformity

Answer 3

where sediments overly much older intrusive igneous or metamorphic rocks

Question 4

Permineralized Organisms

Answer 4

process by which minerals precipitate in porous material from groundwater solutions that seeped into the pores. E.g. petrified wood

Question 5

Unconformities

Answer 5

gaps in rock record when erosion occurred rather than deposition