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re: LSU Indian Mounds oldest in North America
Posted on 8/23/22 at 10:34 am to BoudinChicot
Posted on 8/23/22 at 10:34 am to BoudinChicot
quote:
Most of the dating of LSU Indian mounds so far has been radiocarbon of charcoal and organics found in sediment cores, as well as something called magnetic susceptibility which can help determine when and how sediment was deposited.
they're pretty old, I remember watching them build them when I was there, excess dirt from preparing the slab for the PMAC, iirc
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