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Alaska Division of Geological & Geophysical Surveysdggs.alaska.gov/webpubs/dggs/gr/oversized/gr071_sh002.pdfzero chance for 'nil.' *Estimated percentages of sand and silt, based on

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Page 1: Alaska Division of Geological & Geophysical Surveysdggs.alaska.gov/webpubs/dggs/gr/oversized/gr071_sh002.pdfzero chance for 'nil.' *Estimated percentages of sand and silt, based on