Unit 1 BEDROCK GEOLOGY

The geologic history of the Earth is determined by Earth Science principles such as _________________________ _________________________ _________________________ _________________________ _

BIG IDEA _____________________can be estimated by observing ________ sequences and understanding how forces inside the Earth affect those sequences. Scientific evidence implies that some rock near the earth's surface is several billion years old.

The formation, weathering, sedimentation, and reformation of rock constitute a continuing ”____________" in which the _________ amount of material stays the same as its forms change.

___________________show the surface geology of an area, region or a larger land area. They are constructed using a variety of methods and contain generalizations. GEOLOGIC MAPS

There are _______ types of rocks: ______________, ___________, and ______________and the rock cycle explains the relationships that can occur between them. ROCK TYPES

SEDIMENTARY ROCKS IGNEOUS ROCKS Perpendicularly-fused metamorphosed sedimentary layers METAMORPHIC ROCKS

INTERPRETATION PRINCIPLES Geologists interpret the rock record using four principles: ____________, ___________, ____________________and __________________ relationships.

horizontality original lateral continuity crosscuttingsuperposition

FORCES AND FAULTS Forces inside the Earth can create _________________over time. Different types of faults (reverse, normal and strike-slip) are formed by different forces (compression, tension or shearing).

folds faults

LAND USE AND GEOLOGY Different regions in the United States have different land uses based on the underlying geology.