04b_GeologyConcepts

04b_GeologyConcepts - GEOLOGICAL CONCEPTS FIVE STEPS TO...

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GEOLOGICAL CONCEPTS FIVE STEPS TO BECOMING A… GEOLOGICAL DETECTIVE!
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OUR GOAL: TO INTERPRET GEOLOGICAL STRUCTURES WE SEE, LIKE THE ROADCUT DEPICTED BELOW
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THE 5 CONCEPTS UNIFORMITARIANISM ORIGINAL HORIZONTALITY LATERAL CONTINUITY SUPERPOSITION LAW OF CROSS-CUTTING RELATIONSHIPS
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DEFINITION : GEOLOGICAL PROCESSES HAPPENING TODAY HAPPENED IN THE PAST… CONCEPT : UNIFORMITARIANISM USING HISTORY , WE STUDY THE PAST TO UNDERSTAND THE PRESENT… BUT USING UNIFORMITARIANISM , WE STUDY THE PRESENT GEOLOGICAL PROCESSES TO UNDERSTAND THE PAST GEOLOGICAL PROCESSES (EVENTS THAT HAPPENED MILLIONS OF YEARS AGO)… EXAMPLE : TO UNDERSTAND MOUNTAINS THAT FORMED MILLIONS OF YEARS AGO, WE STUDY HOW MOUNTAINS ARE FORMING TODAY.
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WHAT ARE THE HORIZONTAL LINES? APPLICATION 1 OF UNIFORMITARIANISM :
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CLUE FROM PRESENT PROCESS…
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HERE IT IS AGAIN… USING TIME LAPSE PHOTOGRAPHY
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ANCIENT LAKE
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DRYING UP
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LEAVING TERRACE LINES
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JUST LIKE THE RESERVOIR
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WHAT IS THIS? APPLICATION 2 OF UNIFORMITARIANISM :
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FROM ANCIENT MUD FLAT OR SAND DUNE CLUE FROM PRESENT PROCESS… THEY MUST HAVE SOLIDIFIED INTO ROCK
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EXPLAIN THIS SOLID ROCK… APPLICATION 3 OF UNIFORMITARIANISM :
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GRAVEL RIVERBED BEACH CLUE FROM PRESENT PROCESS… THEY MUST HAVE SOLIDIFIED INTO ROCK
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This note was uploaded on 08/26/2008 for the course BIO 109 taught by Professor Fiero during the Spring '08 term at Pima CC.

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04b_GeologyConcepts - GEOLOGICAL CONCEPTS FIVE STEPS TO...

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