RRN - Items - Items made of c-14

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Sample#13, 1 vial, analyzed by S.Johannessen 1/31/05(see below). Charcoal from this bag was loaned to Sissel Johannessen (Demeter Research, Vashon, WA) from 1/17/2005 to 2/25/2005 to assess for possible radiocarbon dating. Selected wood was identified to species, growth, and from which part of the tree it came. Johanessen suggested which samples would be best to date based on the following criteria when possible; young wood, short-lived species, free of other materials (soil or rootlets), and sufficient size. Charcoal from this bag was not selected for dating. NAB, 08/12/2009

Material: c-14 sample
Holding Institution: The Burke: University of Washington

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SAMPLE #12, 2 vials, analyzed by S.Johannessen 1/31/05 (see below). Charcoal from this bag was loaned to Sissel Johannessen (Demeter Research, Vashon, WA) from 1/17/2005 to 2/25/2005 to assess for possible radiocarbon dating. She identified selected wood to species, growth, and from which part of the tree it came. Johanessen then suggested which samples would be best to date based on the following criteria when possible: young wood, short-lived species, free of other materials (soil or rootlets), and sufficient size. Charcoal from this bag was selected for dating, and sent to Beta Analytic in April 2005 (Beta # 203753, Sample 280EXU12M). Dates were returned as: 2550+/-40BP Conventional Radiocarbon Age; 2700BP - 2760BP and 2490BP-2650BP 2-sigma Calibration. NAB, 8/12/2009

Material: c-14 sample
Holding Institution: The Burke: University of Washington

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Sample #11, 2 vials, analyzed by S.Johannessen 1/31/05(see below). Charcoal from this bag was loaned to Sissel Johannessen (Demeter Research, Vashon, WA) from 1/17/2005 to 2/25/2005 to assess for possible radiocarbon dating. Selected wood was identified to species, growth, and from which part of the tree it came. Johanessen suggested which samples would be best to date based on the following criteria when possible; young wood, short-lived species, free of other materials (soil or rootlets), and sufficient size. Charcoal from this bag was not selected for dating. NAB, 08/12/2009

Material: c-14 sample
Holding Institution: The Burke: University of Washington

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Sediment with charcoal

Material: c-14 sample
Holding Institution: The Burke: University of Washington

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