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Radiocarbon dating is a key tool archaeologists use to determine the age of plants and objects made with organic material.But new research shows that commonly accepted radiocarbon dating standards can miss the mark—calling into question historical timelines.
"Our work," he added, "should prompt a round of revisions and rethinking for the timeline of the archaeology and early history of the southern Levant through the early Biblical period." Explore further: Climate change caused empire's fall, tree rings reveal More information: Sturt W.The living stem itself is only a few hundred years old, but there is a radiocarbon age of 9,500 years from dead wood present at its base. Mackenthun instead argues that there is no evidence of genetic continuity between the dead and living wood portions of the tree, nor is there any evidence of clonal origination of Norway spruce in general.The living tree is argued to be only the most recent ramet of the much older individual genet. Thus, in the absence of any solid evidence of genetic continuity between dead and living portions of a species otherwise not known to commonly reproduce clonally, I do not include such trees in data. Brown, Director ● [email protected]● (970) 229-9557 Rocky Mountain Tree-Ring Research ● 2901 Moore Lane ● Fort Collins Colorado ● 80526 USA © Rocky Mountain Tree-Ring Research, Inc.There has been a lot of focus on in the media recently about very old trees that are based on radiocarbon dating of a remnant piece of wood in association with a currently living tree and is assumed to have been an ancient stem that reproduced clonally.For example, "Old Tjikko" is a Norway spruce (Picea abies) growing in Sweden.
However, radiocarbon ages of trees are considered if the date came from a piece of wood that can unequivocally be associated with the individual tree itself. (2007) used radiocarbon dating on pieces of what may be the largest known baobab (Adansonia digitata) to determine that the tree was at least 1250± 50 years old when it recently died.