期刊
JOURNAL OF ARCHAEOLOGICAL SCIENCE
卷 37, 期 9, 页码 2352-2364出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jas.2010.04.009
关键词
Chiribaya; Andes; South America; Bone chemistry; Biogeochemistry; Trophic level; Radiogenic strontium; Stable strontium
资金
- Arizona State University
- National Science Foundation [BCS-0202329, SBR-9708001, BNS-8920769]
- Southern Peru Copper Company
- University of Wisconsin at Madison
- University of New York at New Paltz
Isotopic methods are widely used in archaeology to investigate paleodiet Here, we present a new method to identify trophic level in archaeological human populations and to investigate paleodiet. We demonstrate that strontium isotope compositions (reported as delta Sr-88/86) vary in a mass-dependent manner with increasing trophic level and can elucidate paleodiet in archaeological human populations. We present new mass-dependent strontium isotope data from tooth enamel and bone from individuals buried during the Late Intermediate Period (c. AD 1000-1300) in the large cemeteries of Chiribaya Alta, Chiribaya Baja, San Geronimo, and El Yaral in the Ilo and Moquegua Valleys of southern Peru. We compare these data to radiogenic strontium isotope data (Sr-87/Sr-86) and light stable isotope data (delta N-15(col) and delta C-13(col)) from the same individuals to investigate geologic variability in strontium sources as well as marine food consumption among the Chiribaya. Our results demonstrate the utility of measurements of strontium isotope fractionation as a new tool for archaeological investigation of paleodiet. Importantly, this new technique can be used to generate paleodietary (delta Sr-88/86) and paleomobility (Sr-87/Sr-86) data from the same specimen, minimizing destructive analyses of invaluable archaeological material, and provides a new way to examine paleodiet through hydroxyapatite, which is particularly important when collagen is poorly preserved. (C) 2010 Elsevier Ltd. All rights reserved.
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