ARCH 100 Chapter Notes - Chapter 8: Accelerator Mass Spectrometry, Optimal Foraging Theory, Cottontail Rabbit
11 Apr 2014
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Document Summary
Maize has been traced back to teosinte, wild grass found in highlands of mexico. Teosinte produces two rows of small triangular shaped seeds encased in thick glum. Tehuacan valley valley that shows early evidence of domesticated plants in mesoamerica. Guila naquiz 5 levels identified into 5 zones. Zone a 20 cm thick level dated to a little over 1000 years ago below the zone has levels from b-e. Zone b-e consist of levels that are 60 cm thick, over 400 years ago accelerator mass spectrometry radio carbon dating redefined method of radiocarbon dating that makes it possible to date very small samples ie: plant remains. Squash domesticated in mesoamerica is called curcubita pep. Principles of radio carbon dating ratio between radioactive carbon-14 and stable atom is constant carbon 14 decays at a known rate oldest directed maize found in guila naquiz. Late archaic farmers shifted to village life traced 8km of terrace walls and 100 rock rings.
