FIG. 4 in How depositional environments impact the preservation of micro-wear of quartz artifacts: insights from the Oldowan of the Shungura Formation (Ethiopia)
Galland, Aline; Clemente-Conte, Ignacio; Boisserie, Jean-Renaud; Delagnes, Anne;
FIG. 4 in How depositional environments impact the preservation of micro-wear of quartz artifacts: insights from the Oldowan of the Shungura Formation (Ethiopia)
FIG. 4. — Fluvial experiment setup and detailed analyses made on one sand sample from a channel lag deposit in Member F: A, equipment used in the fluvial experiment, rubber tumblers (®Lortone, inc.); B, analysis by X-Ray fluorescence showing the composition of elements within the sand; C, size sorting analysis showing a minor silt component and a major sand component. Abbreviations: As, arsenic; Ba, barium; Ca, calcium; Cr, chromium; Fe, iron; Ga, gallium; K, potassium; LOD, limit of detection; Mn, manganese; Ni, nickel; Rb, rubidium; Si, silicon; Sr, strontium; Ti, titanium; Y, yttrium; Zn, zinc; Zr, zirconium. Credits: Alain Queffelec et Aline Galland