GEO 1123

Type of radioactive decay that occurs when two protons and two neutrons are ejected from an atom's nucleus.

alpha emission

sedimentary rocks can rarely be dated radiometrically because they are made up of many different particles.

true

The principle of inclusions states that the rock containing the inclusion is _________________.

younger

If layer N is 300,000 years old, and layer H is 100,000 years old, approximately how old is intrusion P?

Between 100,000 and 300,000 years

____________________ involves matching of rocks of similar ages from different regions.

Correlation

A complete set of conformable strata for all of Earth history exists.

False

Which layers are YOUNGER than intrusion P?

H, I, and K

What are the characteristics of index fossils?

Short evolutionary life span, geography widespread, Well-preserved, Easily identifiable

______________________ is everything that happens from the death of an organism to the discovery of the fossil.

Taphonomy

Phanerozoic means "visible life" because this is the Eon when hard parts appear in the fossil record.

True