What do 1973 Yukon dig reports say, and did labs confirm the dates?
Research question: What do the primary radiocarbon and stratigraphic reports for the 1973 Northern Yukon artifacts say, and did independent labs replicate the pre-glacial-peak dates?
The records show that the source reports new radiocarbon dates on four artifacts once thought to be Pleistocene, and the dates point to a Holocene age 1. The text is truncated, so it gives no stratigraphic details and no independent lab replication 1. For Bluefish Caves, the initial radiocarbon dating suggested about 24,000 years before present 2, and a 2017 PLOS ONE study also indicated an age of about 24,000 years 5. The provided facts do not establish that independent laboratories replicated these pre-glacial-peak dates, and the one study that names its lab used only the NSF Arizona AMS Laboratory without describing replication 8. The newest dated fact is from 2018 8, about eight years before October 2026, and the provided facts do not directly cover the 1973 artifacts 1.
Sources
"New radiocarbon dates on four artifacts that were thought to provi"New Dates on Northern Yukon Artifacts: Holocene Not Upper Pleistocene
"the initial radiocarbon dating suggested an age of 24,000 before present (BP)."Bluefish Caves - Wikipedia
"date is based on one 6-day count in 5-L counter at 4 atm and supersedes earlier date of >38,200 for same sample"Geological Survey of Canada Radiocarbon Dates V (1966)
"Ces datations furent d'abord considérées comme controversées par la communauté scientifique, car allant à l'encontre de la théorie du peuplement tardif"Grottes de Bluefish
"En 2017, une nouvelle datation réalisée sur 36 000 ossements retrouvés sur le site par Jacques Cinq-Mars indique aussi un âge de 24 000 ans"Grottes de Bluefish
"Earliest Human Presence in North America Dated to the Last Glacial Maximum: New Radiocarbon Dates from Bluefish Caves, Canada"Grottes de Bluefish
"Arguments for Pleistocene Artifacts from the Old Crow Basin, Yukon: A Preliminary Statement"North American mammoths, page 138
"GregHodginsandstaffattheNSFArizonaAMSLaboratory performedtheradiocarbondating."Nitrogen isotopes suggest a change in nitrogen dynamics between the Late Pleistocene and modern time in Yukon, Canada (2018)
"Disputed evidence of the oldest remains of human inhabitation in North America have been found in the Yukon."History of Yukon
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