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Paired Radiocarbon Dating on Human Samples and Camelid Fibers and Textiles from Northern Chile: The Case of Pica 8 (Tarapacá)
| Content Provider | Scilit |
|---|---|
| Author | Santana-Sagredo, Francisca Schulting, Rick Lee-Thorp, Julia Agüero, Carolina Uribe, Mauricio Lemp, Cecilia |
| Copyright Year | 2017 |
| Description | Pica 8 is a Late Intermediate Period (AD 900–1450) cemetery located in the Atacama Desert. Burials at the site present unexpectedly high variability in $δ^{13}$C (–8‰ to –16‰) and $δ^{15}$N (10‰ to 24‰) values in their skeletal tissues, implying highly diverse diets. There are two possible explanations for this variability: the first is diachronic change in diet while the second involves synchronic sociocultural distinctions. To distinguish between them a radiocarbon $(^{14}$C) dating program (n=23) was initiated. The presumed importance of marine foods adds the complication of a marine reservoir effect. To address this problem, paired$ ^{14}$C dates were obtained on human bone and camelid textiles from nine graves. The results fall into two groups, one showing an average offset of 117±9$ ^{14}$C yr, and the other no statistically significant offsets. We conclude that the contribution of marine foods to bone collagen at Pica 8 was less than previously supposed. Other factors must be invoked to account for the unusually high human $δ^{15}$N values at the site. Manuring crops with sea-bird guano emerges as a probable explanation. No relationship with chronology is seen implying the presence of considerable diversity in diets and hence lifeways within the Pica 8 community. |
| Related Links | https://www.cambridge.org/core/services/aop-cambridge-core/content/view/483DAC99CA6266440B6569C4F9669DEF/S0033822217000364a.pdf/div-class-title-paired-radiocarbon-dating-on-human-samples-and-camelid-fibers-and-textiles-from-northern-chile-the-case-of-pica-8-tarapaca-div.pdf |
| Ending Page | 1213 |
| Page Count | 19 |
| Starting Page | 1195 |
| ISSN | 00338222 |
| e-ISSN | 19455755 |
| DOI | 10.1017/rdc.2017.36 |
| Journal | Radiocarbon |
| Issue Number | 4 |
| Volume Number | 59 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 2017-08-01 |
| Access Restriction | Open |
| Subject Keyword | Radiocarbon Atacama Desert Marine Reservoir Effect Stable Carbon and Nitrogen Isotopes |
| Content Type | Text |
| Resource Type | Article |
| Subject | Earth and Planetary Sciences Archeology (arts and humanities) |
