DOI: 10.1016/j.epsl.2018.04.059
Scopus记录号: 2-s2.0-85047063668
论文题名: Hominin expansion into Central Asia during the last interglacial
作者: Asmerom Y. ; Polyak V.J. ; Wagner J.D.M. ; Jonathan Patchett P.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 494 起始页码: 148
结束页码: 152
语种: 英语
英文关键词: geoarcheology
; isotope geochemistry
; paleoclimate
; U-series chronology
Scopus关键词: Deposits
; Exploratory geochemistry
; Isotopes
; Archaeological site
; Geoarcheology
; Isotope geochemistry
; Last glacial period
; Last interglacial
; Marine isotope stages
; Paleoclimates
; U-series
; Expansion
; archaeology
; chronology
; geochemistry
; hominid
; isotopic composition
; Last Interglacial
; paleoclimate
; uranium series dating
; Central Asia
英文摘要: 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. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109843
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Department of Earth & Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, United States; Department of Geosciences, University of Arizona, Tucson, AZ 85721, United States
Recommended Citation:
Asmerom Y.,Polyak V.J.,Wagner J.D.M.,et al. Hominin expansion into Central Asia during the last interglacial[J]. Earth and Planetary Science Letters,2018-01-01,494