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首页> 外文期刊>Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System >Hominin expansion into Central Asia during the last interglacial
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Hominin expansion into Central Asia during the last interglacial

机译：在最后一个中间爆发期间的胎儿扩张进入中亚

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摘要

Central Asia was a likely gateway for hominin expansion. Obi-Rakhmat Grotto, northeastern Uzbekistan, has a deposit that contains the remains of a hominin child (OR-1) and more than 60,000 Paleolithic artifacts, making it one of the most important archaeological sites in Central Asia. Regionally, genetic data suggest hominin presence and human-Neanderthal interbreeding as far back as 100 ka, although, to date, absolute ages of hominin remains that old have not been known in the region. We present new uranium-series dates that constrain the age of the Obi-Rakhmat deposit to 98 ka towards the top and 109 ka for the layer containing OR-1, pushing hominin expansion into Central Asia minimally to 109 +/- 2 ka, to a time, based on the genetic clock, of Neanderthal-modern human interbreeding. Our chronology establishes a minimum age of 98 ka for the well-developed lithic industry in Central Asia. The period covering the deposition of the sediments containing the artifacts and specimen OR-1 coincides with a warm and one of the most humid intervals of Marine Isotope Stage (MIS) 5 and last glacial period in the region, providing support for climate-driven hominin expansion. (C) 2018 Elsevier B.V. All rights reserved.
机译：中亚是为古人类扩张可能网关。奥比Rakhmat石窟，乌兹别克斯坦东北部，具有包含人族子（OR-1）的遗迹和超过60,000旧石器时代文物，使其成为在中亚地区最重要的考古遗址之一的押金。分地区来看，遗传数据表明古人类存在和人类尼安德特人杂交繁殖早在100万年，不过，迄今为止，古人类遗存的绝对年龄老没有在该地区已知的。我们提出了约束奥比Rakhmat存款岁至98 KA朝向顶部和109 KA含有OR-1层，推古人类扩展到中亚最低限度，以109 +/- 2 KA，新的铀系日期一时间，基于遗传时钟尼安德特人的现代人类杂交繁殖的。我们的年代确立了98万年的发达岩屑行业在中亚的最低年龄。期间覆盖含有伪影和标本OR-1用温暖和一致海洋同位素阶段（MIS）5，该区域最后冰川时期的最潮湿的间隔之一的沉积物的沉积，对于气候驱动古人类提供支持扩张。 （c）2018年elestvier b.v.保留所有权利。

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