ARCH 131 Chapter Notes - Chapter 6-14: Lithic Technology, Microblade Technology, Prepared-Core Technique

• School: Simon Fraser University
• Department: Archaeology
• Course: ARCH 131
• Professor: Dennis Sandgathe

Document Summary

Evolution of lithic technologies: g. d. clark"s technological modes. Mode 1: olduwan technology: simple chopping tools and sharp, unmodified flakes, flakes knocked off rocks, e. g. 10. 1 outline the anatomical changes necessary for becoming a biped. The foramen magnum is placed on the inferior of the cranium. Vertebral bodies bear progressively more weight lower in the column and so are largest in the lumbar region. The spinal column acquires two secondary curvatures (in the cervical and lumbo- sacral regions) that keep the center of gravity directly above, rather than in front of, the feet of the biped. The pelvis is bowl-shaped, with the ilium rotated around the side of the biped, which reorients the gluteal muscles into a position in which they can provide sup- port while the biped stands on only one foot. The femur is angled from hip to knee, bringing the foot directly below the center of gravity.