A provenance study of crypto-crystalline silicates at the Cooper's Ferry site : a geochemical approach Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/b5644v66t

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  • A provenance study of crypto-crystalline silicates was performed at the Cooper's Ferry archaeological site in west-central Idaho on the Columbia Plateau. In this research, the author used instrumental neutron activation analysis as well as portable x-ray fluorescence to examine and characterize the geochemistry of 300 geologic samples of crypto-crystalline silicates from six different sources in the region surrounding Cooper's Ferry. The author then examined approximately 600 archaeological artifacts from Cooper's Ferry using portable x-ray fluorescence and attempted to correlate archaeological artifacts to examined geologic sources using a multivariate statistical approach. This research finds that the tool stone of approximately 24 percent of artifacts examined originated from a sampled local chert source. This research also examined the ratio of possible chert sources scene in the archaeological record by using multiple cluster analysis techniques and finds that no observable founder effect is seen at Cooper's Ferry. Furthermore, there seems to be a long standing transfer of crypto-crystalline silicate source knowledge at Cooper's Ferry, indicating an extended period of cultural stability at the site. This stability can be extrapolated as a single cultural group residing at the site throughout its occupation history - approximately 11,000 to 8,000 RCYBP.
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  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2013-07-17T17:15:09Z (GMT) No. of bitstreams: 2 license_rdf: 1536 bytes, checksum: df76b173e7954a20718100d078b240a8 (MD5) ALEX_NYERS_THESIS_FINAL.pdf: 11057260 bytes, checksum: 88a3977c2633b6f81a75f9f6124e36a7 (MD5)
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  • description.provenance : Approved for entry into archive by Julie Kurtz(julie.kurtz@oregonstate.edu) on 2013-07-03T17:24:02Z (GMT) No. of bitstreams: 2 license_rdf: 1536 bytes, checksum: df76b173e7954a20718100d078b240a8 (MD5) ALEX_NYERS_THESIS_FINAL.pdf: 11057260 bytes, checksum: 88a3977c2633b6f81a75f9f6124e36a7 (MD5)

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