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- handle: 10670/1.xfhom7
- hal: hal-01652883
- doi: 10.1016/j.quascirev.2017.10.034
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info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2017.10.034
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Kozarnika Bulgaria Pleistocene Lithic tools Lower Palaeolithic Magnetostratigraphy Brunhes MatuyamaCiter ce document
Giovanni Muttoni et al., « An early Brunhes ( », HAL-SHS : archéologie, ID : 10.1016/j.quascirev.2017.10.034
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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 toolbearing 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 13aec) lie in the early Brunhes at a nominal maximum age of ~0.75 Ma, while the Brunhes eMatuyama 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.