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Students will examine mineral separates from sand samples collected from a number of rivers each of which drains a slightly different geologic terrane. Differences in mineralogic composition and mineral abundance will be used to suggest different provenance for each of the sand samples. These sand samples may be treated as unknowns or the students may be informed of where the sand was sampled. At the end of the mineral separations and binocular microscope identification, the students may be allowed to consult geologic maps of the regions sampled to aid in their provenance determination.
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