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首页> 外文期刊>Radiocarbon >A REVISED RADIOCARBON CHRONOLOGY OF THE ACERAMIC SHELL MIDDEN OF RA'S AL-HAMRA 6 (MUSCAT, SULTANATE OF OMAN): IMPLICATION FOR OCCUPATIONAL SEQUENCE, MARINE RESERVOIR AGE, AND HUMAN MOBILITY
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A REVISED RADIOCARBON CHRONOLOGY OF THE ACERAMIC SHELL MIDDEN OF RA'S AL-HAMRA 6 (MUSCAT, SULTANATE OF OMAN): IMPLICATION FOR OCCUPATIONAL SEQUENCE, MARINE RESERVOIR AGE, AND HUMAN MOBILITY

机译：修订版的RA's-HAMRA 6（阿曼苏丹国，Muscat）的气膜壳放射性碳年代谱：对职业序列，海洋储层年龄和人类活动的影响

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Ra's al-Hamra 6 (RH-6) is one of the earliest stratified archaeological sites along the eastern littoral of the Arabian Peninsula. This shell midden was radiocarbon dated to the 6th-5th millennium cal BC, but the majority of the dates were obtained before the advent of accelerator mass spectrometry (AMS) C-14 dating and suffer from large uncertainties. In addition, most of these dates were obtained on marine and mangrove shells and required correction for local variations from the global average marine C-14 reservoir age (MRA). This proved difficult because no consensus value exists for this period in the area. Recent excavations at RH-6 offered the opportunity to redate this important site in order to precisely determine its occupation history and later use as a graveyard, and establish the marine reservoir effect for this time period. Thirty-eight samples of charcoal, shells, and human bone apatite were selected for C-14 dating. Bayesian modeling of the C-14 dates suggests that the formation of the shell midden spanned similar to 1 millennium, between the mid-6th and the mid-5th millennium cal BC. Positive and consistent Delta R values were calculated throughout the entire sequence, ranging from 99 +/- 27 to 207 +/- 43 C-14 yr. At the beginning of the 4th millennium cal BC, RH-6 was used as a graveyard, as suggested by the C-14 dating of a shell in strict association with an individual buried at the surface of the site. C-14 dating of human bone apatite allowed us to calculate that 89% of this individual's diet derived from marine resources. This finding confirms previous observations showing the overwhelming presence of marine and mangrove-dwelling species in the faunal and charcoal assemblage, and implies a low mobility, or mobility restricted to the coast for this population during the 4th millennium cal BC.
机译：Ra的al-Hamra 6（RH-6）是阿拉伯半岛东部沿海沿岸最早的分层考古遗址之一。该壳中部的放射性碳可追溯到公元前6-5世纪，但是大多数日期是在加速器质谱（AMS）C-14出现之前获得的，并且存在很大的不确定性。此外，这些日期大多数是在海洋和红树林贝壳上获得的，需要根据全球平均海洋C-14储层年龄（MRA）进行局部校正。事实证明这很困难，因为该地区在此期间没有共识价值。 RH-6的最近发掘提供了重修此重要地点的机会，以便精确确定其占领历史并随后用作墓地，并确定该时间段的海洋水库影响。选择了38个木炭，贝壳和人骨磷灰石样品进行C-14约会。贝叶斯对C-14年代的建模表明，壳中层的形成跨度类似于1千年，在公元前6至5世纪中叶之间。在整个序列中计算出正的和一致的Delta R值，范围从99 +/- 27到207 +/- 43 C-14 yr。在公元前4世纪初期，RH-6被用作墓地，这是根据壳的C-14年代与埋在遗址表面的个体严格关联而得出的。人骨磷灰石的C-14约会使我们能够计算出该人饮食中89％来自海洋资源。这一发现证实了先前的观察结果，表明在动植物和木炭组合中海洋和红树林居所物种的绝大部分存在，并暗示了该种群在卑诗省第四个千年期间的活动性很低，或仅限于沿海地区的活动性。

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