2026-09-24T04:13:33Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/121429 2023-12-13 col_2142_5131 col_2142_14811 com_2142_5130 com_2142_9166 com_2142_8903

Ambrose, Stanley H. Pauketat, Timothy R. 2023-08 application/pdf en text Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms The student, Madeleine Evans, accepted the attached license on 2023-06-22 at 17:23. The student, Madeleine Evans, submitted this Thesis for approval on 2023-06-22 at 17:42. This Thesis was approved for publication on 2023-06-26 at 15:45. DSpace SAF Submission Ingestion Package generated from Vireo submission #19454 on 2023-12-04 at 17:00:10 Examining the diagnostic value of 87SR/86SR for midwestern blue-gray chert source determination Evans, Madeleine G 2023-06-26 Chert Source Provenience Lithic Material Procurement Strontium Isotope Analysis Midwestern Bluish-gray Chert Identifying sources of lithic raw material can provide insight into interaction between distant communities in the form of travel or exchange. Geological sources might index symbolically meaningful locations or the settings of everyday local activities. Methods of sourcing lithic raw material have become increasingly sophisticated over the last 50 years as archaeologists explore interdisciplinary techniques for characterizing material from different proveniences. With more than ten visually similar bluish-gray chert sources in Illinois, Indiana, Kentucky, Tennessee, and Georgia, geological provenience assignment of artifacts produced from these materials has proven to be a particularly confounding task. Geochemical analysis aimed at distinguishing bluish-gray chert from different Midwestern sources using strontium isotope analysis appears to be a promising technique based on data derived from analysis of 34 samples from four geological sources. Results show that the 87Sr/86Sr of Cobden-Dongola chert is distinct from Wyandotte, Kentucky Blue, and St. Louis chert from Robertson County Tennessee. It appears likely that bivariate classification using the ratio of rubidium to strontium as well as 87Sr/86Sr will increase the diagnostic potential of analyses of geological specimens and artifacts. Text eng https://hdl.handle.net/2142/121429 Copyright 2023, Madeleine G. Evans M.A. Thesis Anthropology University of Illinois at Urbana-Champaign Anthropology