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Surfaces and lines

Surfaces and lines. Goal : Understand how to measure, describe, and record orientations of planar and linear geologic structures. Strike and dip. Apparent dip. Trend and plunge. Pitch or rake “ pitch ” is the British terminology. Brunton Compass. Magnetic declination.

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Surfaces and lines

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  1. Surfaces and lines

  2. Goal: Understand how to measure, describe, and record orientations of planar and linear geologic structures

  3. Strike and dip

  4. Apparent dip

  5. Trend and plunge Pitch or rake “pitch” is the British terminology.

  6. Brunton Compass

  7. Magnetic declination Blue = west declination Red = east declination

  8. Magnetic declination between 1590 and 2010

  9. West declination, set Brunton to west East declination, set Brunton to east Current declination in Waterville 16°, 13’ west

  10. Lets measure some surfaces and lines

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