Proceedings of the National Academy of Sciences. Thermoluminescence dates may be thrown off by incidental heating long after the occupation has ended. Even with stricter constraints on possible solutions, valid candidates cannot be found by enumeration for more than a handful of assemblages. Cultural Transmission and Archaeology: New Haven:
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Clark Wissler, an anthropologist researching Native American groups in the Southwest, recognized the potential for such dating, and brought Douglass subfossil wood from puebloan ruins. The redneck fights back like a mad man, but after five minutes they finally pin him down and grab the wallet. One can see that the change in the frequencies of types roughly follows a unimodal distribution, but there are numerous violations of unimodality as well. The origins of the method are a bit opaque since variants were in used before it was given the name. Washington, DC: When the numbers of assemblages grows, a combinatorial explosion sets in, first visible once 10 or more assemblages are analyzed. A Method for Fine Chronological Differentiation.