Features of Quina products compared to ordinary scrapers (IMAGE)

Chinese Academy of Sciences Headquarters

Features of Quina products compared to ordinary scrapers

Caption

Features of Quina products compared to ordinary scrapers. (A) Thickness of Quina scrapers. (B) Edge angles of Quina scrapers. (C) Reduction intensity (GIUR) of Quina scrapers. (D) Similarity between edge angles of Quina scrapers and the exterior platform angles of resharpening flakes. (E) The sequence of the discoidal production system. (F) The sequence of the Quina production system, which is longer than in the discoidal system. In the box-and-whisker plots, black circles in the boxes represent the mean value, thick solid lines indicate the median value, bottom and top edges show the 1st and 3rd quartiles, and whiskers extend to 1.5 times the interquartile range.

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Image by the research group.

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