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Evidences about the origin of stone elements at Cueva Negra

Quartaer57bA recently published article (Quartär 60 (2013) : 7-28) shows the results of an study about the possible chert sources used by human ancestors that lived in “Cueva Negra del Estrecho del Río Quipar” ca. 0,8 – 0,9 Ma.

Quartar is scientific magazine supported by the Hugo Obermaier Society for Ice Age and Stone Age Research”.

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Winston Zack surveying the surrondings of Cueva Negra

The analysis has been taken at the “Lunar and Planetary Laboratory” of the Arizona University, in Tucson (USA). Trace-element fingerprints were analyzed by laser-ablation inductively-coupled plasma mass-spectrometry (ICP-MS).

These elements sampled evidence that most of the chert comes from less than 1 km away, namely, from a conglomerate outcrop where chert nodules could be quarried readily. It also points to a fair likelihood that some recovered chert lithics had been brought from sources up to 30 km away from the cave.

http://www.quartaer.eu/pdfs/2013/2013_walker.pdf

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