An early Brunhes (<0.78 Ma) age for the Lower Paleolithic tool-bearing Kozarnika cave sediments, Bulgaria

QUATERNARY SCIENCE REVIEWS

卷:178

Article

Muttoni, Giovanni^1,2  Sirakov, Nikolas³  Guadelli, Jean-Luc⁴  Kent, Dennis V.^5,6  Scardia, Giancarlo⁷  Monesi, Edoardo^1,2  Zerboni, Andrea^1,2  Ferrara, Enzo⁸ 

[1] Univ Milan, Dipartimento Sci Terra Ardito Desio, Via Mangiagalli 34, I-20133 Milan, Italy

[2] ALP, Via Luigi Massa 6, I-12016 Peveragno, Italy

[3] Bulgarian Acad Sci, Natl Inst Archaeol & Museum, 2 Saborna St, Sofia 1000, Bulgaria

[4] Univ Bordeaux, CNRS, PACEA UMR5199, Allee Geoffrey St Hilaire,Batiment B18,CS50023, F-33615 Pessac, France

[5] Rutgers State Univ, Earth & Planetary Sci, Piscataway, NJ 08854 USA

[6] Columbia Univ, Lamont Doherty Geol Observ, Palisades, NY 10964 USA

[7] Univ Estadual Paulista, UNESP, Inst Geociencias & Ciencias Exatas, BR-13506900 Rio Claro, SP, Brazil

[8] INRIM, Ist Nazl Ric Metrol, Nanosci & Mat Div, I-10135 Turin, Italy

关键词: Kozarnika;    Bulgaria;    Pleistocene;    Lithic tools;    Magnetostratigraphy;    Brunhes;    Matuyama;   

DOI  :  10.1016/j.quascirev.2017.10.034

来源: Elsevier

【 摘 要 】

We present a new sedimentological profile and a magnetostratigraphy of the tool-bearing Kozarnika cave sediments from Bulgaria. Modal analysis of cave infilling sedimentary texture indicates that the tool bearing layers contain a sizable fraction of sediment interpreted as loess. We also find evidence for a relatively thick and well defined normal magnetic polarity in the upper-middle part of the section interpreted as a record of the Brunhes Chron, followed down-section by reverse polarity directions interpreted as a record of the Matuyama Chron. The lowermost levels with Lower Paleolithic tools (Layers 13a-c) lie in the early Brunhes at a nominal maximum age of similar to 0.75 Ma, while the Brunhes Matuyama boundary (0.78 Ma) falls in Layer 13 Lower immediately below. This finding represents a conspicuous revision of previous age estimates for the same tool-bearing layers. (C) 2017 Elsevier Ltd. All rights reserved.

【 授权许可】

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