Fig. 6: Correlations between the total edge length/mass ratio and the mass proportion of cores and debris in the lithic assemblages. | Nature Communications

Fig. 6: Correlations between the total edge length/mass ratio and the mass proportion of cores and debris in the lithic assemblages.

From: Delayed increase in stone tool cutting-edge productivity at the Middle-Upper Paleolithic transition in southern Jordan

Fig. 6

Theoretically, the ratio of total edge length/mass (mm/g) is expected to decrease as the mass ratio of cores and debris increases. Such a negative correlation is observable only in LMP and IUP. Arrows indicate a chronological order of the lithic assemblages. Note that we do not assume a chronological relationship between LMP (TSB) and LMP (TFJ) and between IUP (WAR) and IUP (TFZ), as described in the text. LMP Late Middle Paleolithic, IUP Initial Upper Paleolithic, EUP Early Upper Paleolithic, E Epi Early Epipaleolithic, M Epi Middle Epipaleolithic. The lithic assemblages were excavated from Tor Sabiha (TSB), Tor Faraj (TFJ), Wadi Aghar (WAR), Tor Fawaz (TFZ), and Tor Hamar (THR) located in southern Jordan. Source data are provided as a Source Data file.

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