Between 2015 and 2018, a joint venture of the Universities of Basel (Switzerland), Jordan, and Yarmouk (Jordan) conducted a survey project along the eastern margins of the Jordan Valley between Sulaykhat and Adassiyyah. The three field seasons, which aimed to document archeological sites, saw a number of important Paleolithic artifacts discovered. Study of the stone artifacts focused on the identification of cultural clusters based on techno-typological characteristics of particular well-known cultural units from highly stratified sites in the Levant. Alongside this, conservation conditions of lithics from open-air sites were a focus. Using such benchmarks, 140 Lower and Middle Paleolithic open-air sites were identified. In this paper, we focus only on the finds from Late Lower and Early Middle Paleolithic. The analysis showed that the newly discovered open-air sites for blade production can be defined as workshop sites, with the massive production of blanks but very little evidence of formal tools. The lithic assemblages reveal a specific débitage system similar to the Hummalian production strategy recognized at Hummal, Syria. Alongside these, Yabrudian sites were also identified and labeled as former settlements. Their stone assemblages show techno-typological traits typical for the Yabrudian cultural units already observed in the Levant. Furthermore, the identification of the source of raw material permitted a better understanding of the settlement dynamics in the region.

中文翻译：

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旧石器时代晚期晚期和中中期早期露天场所的沉降动态：约旦河谷左岸的地面调查

在2015年至2018年之间，巴塞尔（瑞士）大学，约旦和耶尔穆克（约旦）的一家合资企业在Sulaykhat和Adassiyyah之间的约旦河谷东缘进行了一项勘测项目。旨在记录考古现场的三个野外季节，发现了许多重要的旧石器时代的文物。对石器物的研究集中在根据黎凡特高度分层的特定知名文化单位的技术型特征识别文化群。除此之外，露天场所的石器保护条件也成为关注焦点。使用这样的基准，确定了140个旧石器时代中期和中期的露天场所。在本文中，我们仅关注旧石器时代晚期和下中期的发现。分析表明，新发现的用于叶片生产的露天场所可以定义为车间场所，大量生产毛坯，但是很少有正式工具的证据。石器组合揭示了一种特定的解扣系统，类似于叙利亚的Hummal认可的Hummalian生产策略。除此之外，还确定了Yabrudian遗址并将其标记为以前的定居点。他们的石头组合展现出在黎凡特已经观察到的Yabrudian文化单位特有的技术型特征。此外，对原材料来源的识别可以更好地了解该地区的沉降动态。石器组合揭示了一种特定的解扣系统，类似于叙利亚的Hummal认可的Hummalian生产策略。除此之外，还确定了Yabrudian遗址并将其标记为以前的定居点。他们的石头组合展现出在黎凡特已经观察到的Yabrudian文化单位特有的技术型特征。此外，对原材料来源的识别可以更好地了解该地区的沉降动态。石器组合揭示了一种特定的解扣系统，类似于叙利亚的Hummal认可的Hummalian生产策略。除此之外，还确定了Yabrudian遗址并将其标记为以前的定居点。他们的石头组合展现出在黎凡特已经观察到的Yabrudian文化单位特有的技术型特征。此外，对原材料来源的识别可以更好地了解该地区的沉降动态。