Refit and Oxygen Isotope Analysis of Freshwater Mussel Shells from the Tillar Farms Site (3DR30), Southeast Arkansas

IF 0.4 Q1 Arts and Humanities
J. Collins, C. Andrus, R. Scott, Amy Moe-Hoffman, E. Peacock
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引用次数: 5

Abstract

ABSTRACT We investigate the link between the consumption of foodstuffs, excavation of a large pit, and disposal of waste at the Tillar Farms site (3DR30), southeast Arkansas, using refit and oxygen isotope analyses of well-preserved freshwater mussel shells from Feature 1. Only 0.13% of 7,408 valves analyzed were unidentifiable to species.The refit analysis produced 460 refits across 23 species and strongly indicates that the shell midden represents a single episode of shellfish gathering, consumption, and discard. Oxygen isotope analysis of five randomly selected shells are used as a test of the refit results. δ18O values from the five archaeological shells are compared to modern control samples of live-collected specimens from Bayou Bartholomew in winter of 2011. Refit analysis suggests the accumulation of mussel shells occurred quickly, likely as a result of one collection, consumption, and discard event. δ18O values suggest this activity took place during a single winter season.
阿肯色州东南部蒂勒农场(3DR30)淡水贻贝的整修和氧同位素分析
研究人员利用特征1中保存完好的淡水贻贝壳的整修和氧同位素分析,研究了阿肯色州东南部蒂勒尔农场(3DR30)的食品消费、大坑挖掘和废物处理之间的联系。在分析的7408个阀门中,只有0.13%的阀门无法被物种识别。改装分析对23个物种进行了460次改装,并强烈表明贝壳堆代表了贝类收集,消费和丢弃的单一事件。对随机选择的5个壳体进行氧同位素分析,作为对改装结果的检验。将5个考古贝壳的δ18O值与2011年冬季在巴塞洛缪河口采集的现代对照标本进行了比较。改装分析表明,贻贝壳的积累发生得很快,可能是一次收集、消耗和丢弃事件的结果。δ18O值表明这一活动只发生在一个冬季。
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CiteScore
1.50
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