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Obsidian hydration dating on the South Coast of Peru |
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| Authors: | Jelmer W. Eerkens Kevin J. Vaughn Tim R. Carpenter Christina A. Conlee Moises Linares Grados Katharina Schreiber |
| Affiliation: | 1. Department of Anthropology, UC Davis, One Shields Avenue, Davis, CA 95616-8522, USA;2. Department of Sociology and Anthropology, Purdue University, 700 W. State Street, West Lafayette, IN 47907-2059, USA;3. Archaeometrics, 414 Buena Tierra, Woodland, CA 95695-4719, USA;4. Department of Anthropology, Texas State University San Marcos, 601 University Drive, San Marcos, TX 78666, USA;5. Proyecto Nasca Temprano, Lima, Peru;6. Department of Anthropology, UC Santa Barbara, Santa Barbara, CA 93106-3210, USA |
| Abstract: | We compare over 230 obsidian hydration readings from 30 individual site components from the Southern Nasca Region (SNR) with independent age estimates based on radiocarbon dates and temporally diagnostic artifacts. Although there are problems with small sample sizes, and readings must be adjusted for elevation, a very strong relationship accounting for nearly 90% of the total variation in the data set is found. This suggests that obsidian hydration dating (OHD) works in the SNR and is a viable means of independently estimating age. Residual values from our regression suggest that hydration age estimates are usually within 15% of the radiocarbon estimates. Finally, we present an equation other scholars can use to estimate age for Quispisisa obsidian in the SNR. |
| Keywords: | Obsidian Hydration dating Effective hydration temperature (EHT) Nasca Peru |
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