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Found 66 items made of Refine Search .
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This object was loaned to Phoebe Anderson (2009) for analysis. A portion of the sample was identified as Pseudotsuga knot (.53g). No destructive analysis was done on the sample, however, and it has been returned to the collection. K. Lutz 1/11/2010
This object was loaned to Phoebe Anderson (2009) for analysis. No destructive analysis was done on the sample, however, and it has been returned to the collection. K. Lutz 1/11/2010
This object was loaned to Phoebe Anderson (2009) for analysis. No destructive analysis was done on the sample, however, and it has been returned to the collection. K. Lutz 1/11/2010
SAMPLE #20, 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. 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 # 203755, Sample 280EXU12O). Dates were returned as: 2640+/-40BP Conventional Radiocarbon Age; 2740BP - 2790BP 2-sigma Calibration. NAB, 8/12/2009
Sample #19, 1 vial, 1 foil packet, 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 # 203755, Sample 280EXU12O). Dates were returned as: 2700+/-40BP Conventional Radiocarbon Age; 2750BP - 2870BP 2-sigma Calibration. NAB, 8/12/2009
Sample #18, 3 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
Sample #17, 1 vial, 1 foil packet, anaylzed 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
Sample #16, 1 vial, 1 foil packet, 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
Sample #15, 1 foil packet, 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
Sample #14, 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