UNIT 5: EARTH’s HISTORY

Define Uniformitarianism:
Laws:
1)      Superposition:
2)    Included Fragments:
3)    Intrusions:

FOLDING and FAULTING:		UNCONFORMITIES: (3 types!)
FOLDS:
FAULTS:
FOSSILS: typically found in sedimentary rocks; types =
1)
2)
3)

	CORRELATION: ways to identify same-age rock layers-
	1)“walking the outcrop”-
	2)index fossils-
	3) Volcanic Ash Falls-
	4) Rock Layer Properties-
ABSOLUTE DATING:	Carbon 14 Decay:
1)
2)
	KEY WORDS Half Life
	Decay
	Product Ratio
	Time
	Mass

How do you choose the BEST radioactive element to measure?

EVOLUTION: Record of Earth’s History- Highlights in New York State