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Four units of time

Eons, eras, periods, epochs

Zo

Life

Paleo

Old

Mezzo

Middle

Sino

Recent

Cambrian

Very first period if the geological time scale

Superposition

Layering; the layer on the bottom is the oldest

Crosscutting

Ignore the 'U' shaped layer

Internal process (energy)

Driven by radioactivity and gravity

External process (energy)

Driven by solar energy and gravity

Geological hazards

Earthquakes, flooding, landslides, sinkholes

Physiographic provinces of NC

Blue ridge, Piedmont, costal plain

What does the geological process produce

Minerals, rocks, glaciers

A recognizable physical feature formed by geological process on the Earth's surface

LANDFORM; dunes, mesas, volcanoes

Earths oldest rock

4.28 billion years old

Age of the Earth

4.6 billion years old

Through vibrating atoms; solids, and metals

CONDUCTION

Movement caused by liquids. Less dense (heat) rise; liquids gasses and sometimes solids

CONVECTION

Electromagnetic waves

RADIATION

For eons of geological time

Hadean, archean, proterozoic,phanerozoic