Unveiling bast fiber production in Upper Paleolithic North China: Microfibers and usewear traces on stone tools from Shizitan
Fig 2
Modern microfibers and associated elements as comparative references.
(a) Hemp showing dislocations (indicated by arrows); (b) damaged hemp showing twisted ribbon form; (c) flax, showing dislocations (indicated by arrows); (d) flax showing twisted ribbon form; (e) hemp hair cell; (f) hemp pitted vessel cells; (g) hemp clustered crystals; (h) dyed bast fiber, black; (i) dyed bast fiber, blue; (j) hemp stem cross section; (k) dyed bast fiber, pink; (l) dyed bast fiber, red; (m) dyed bast fiber, green; (n) cotton; (o) synthetic fiber (upper) and wool (lower). (b, g, h, i, k-m show brightfield and polarized views of the same image; plant and wool samples collected from China by Li Liu; [j] adapted from [78: fig 3]).