In this study, we provide the first absolute ages for a Big Circle megalithic structure in Jordan, using rock surface luminescence dating of the buried surface of rocks collected from circle J4 in southern Jordan. Five rocks were used for this study. All rocks showed evidence of previous daylight exposure before being used in the construction of the circle. The exposure was sufficient to bleach the latent luminescence signal to a negligible level compared to the subsequent burial dose. Three rocks gave indistinguishable ages, and were last exposed to daylight in 1500 ± 100 BCE; this is very likely to be the date of circle construction. Two others gave younger ages, indicating later disturbance or reworking. These new results provide very strong evidence for construction during the Late Bronze Age, and refute the earlier hypothesis of construction during Umayyad period (661–750 CE) as a hunting trap.

中文翻译：

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约旦的大圆圈：首次使用岩石发光表面测年确定绝对年龄

在这项研究中，我们利用从约旦南部 J4 圈收集的岩石埋藏表面的岩石表面发光测年法，首次提供了约旦大圈巨石结构的绝对年龄。这项研究使用了五块岩石。所有岩石在用于建造圆圈之前都显示出先前暴露在日光下的证据。与随后的掩埋剂量相比，暴露足以将潜在的发光信号漂白到可以忽略不计的水平。三块岩石的年龄无法区分，最后一次暴露在阳光下是在公元前 1500 ± 100 年；这很可能是圈子建造的日期。另外两人给出的年龄较小，表明后来受到干扰或返工。这些新结果为青铜时代晚期的建筑提供了非常有力的证据，并反驳了倭马亚时期（公元661-750年）建筑作为狩猎陷阱的早期假设。