Geological Maps

Geologic Maps

shows the geological features of a certain region

Geologic Maps

1) Map

2) Explanation

3) Scale

4) Symbols

5) Correlation of map unit

Geologic Maps

Map Units

Contacts & Faults

Strike and Dip

Cross Section

Geologic Maps (Documents)

Well construction reports (WCRs)

Ground-penetrating radar (GPR)

Aeromagnetic and gravity surveys

Well logs

Rock cores

Putting the information together

Geologic Time

extensive interval of time occupied by the geologic history of Earth.

Geologic Time Scale

calendar for events in the history of Earth.

Geologic Time Scale Duration

eons

eras ('erathem')

periods

epochs

ages

eons

longest portions: Phanerozoic Eon, Proterozoic Eon, Archean Eon

eras ('erathem')

2nd longest portions: Eoarchean Era, Paleoarchean Era, Mesoarchean Era, Neoarchean Era, Paleoproterozoic Era, Mesoproterozoic Era, Neoproterozoic Era, Paleozoic Era, Mesozoic Era, Cenozoic Era

periods

basic unit during the time specific systems of rocks were formed

epochs

unit during which a rock series is deposited