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Unit 1 BEDROCK GEOLOGY
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The geologic history of the Earth is determined by Earth Science principles such as _________________________ _________________________ _________________________ _________________________ _
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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.
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The formation, weathering, sedimentation, and reformation of rock constitute a continuing ”____________" in which the _________ amount of material stays the same as its forms change.
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___________________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
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There are _______ types of rocks: ______________, ___________, and ______________and the rock cycle explains the relationships that can occur between them. ROCK TYPES
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SEDIMENTARY ROCKS IGNEOUS ROCKS Perpendicularly-fused metamorphosed sedimentary layers METAMORPHIC ROCKS
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INTERPRETATION PRINCIPLES Geologists interpret the rock record using four principles: ____________, ___________, ____________________and __________________ relationships.
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horizontality original lateral continuity crosscuttingsuperposition
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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).
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folds faults
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LAND USE AND GEOLOGY Different regions in the United States have different land uses based on the underlying geology.
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