Bromine in teeth and bone as an indicator of marine diet |
| |
Authors: | Alexis E Dolphin Steven J Naftel Andrew J Nelson Ronald R Martin Christine D White |
| |
Institution: | 1. Department of Anthropology, The University of Western Ontario, 1151 Richmond Street, London, ON N6A 5C2, Canada;2. Department of Chemistry, The University of Western Ontario, London, ON N6A 5C2, Canada |
| |
Abstract: | Nitrogen isotope ratios in tissues are often used to aid in the reconstruction of the marine component of diets in past populations. Elevated δ15N values normally found with high trophic level marine resource consumption can, however, also be mimicked by physiological conditions (breastfeeding, pathological states affecting nitrogen balance), climate (aridity), and anthropogenic environments (manuring). This paper presents a pilot study testing whether bromine concentrations can provide a tool for teasing apart possible causes of variation in nitrogen isotope ratios. Blind analyses of bromine in archaeological samples correctly identified individuals derived from coastal vs. inland regions and high vs. low marine consumption time periods. Thus, bromine can provide an important supplement to other isotopic analyses of diet. |
| |
Keywords: | Bromine Nitrogen Palaeodiet Marine Synchrotron XRF |
本文献已被 ScienceDirect 等数据库收录! |
|