Soil analysis in discussions of agricultural feasibility for ancient civilizations: A critical review and reanalysis of the data and debate from Chaco Canyon, New Mexico. oleh Jon-Paul P McCool, Samantha G Fladd, Vernon L Scarborough, Stephen Plog, Nicholas P Dunning, Lewis A Owen, Adam S Watson, Katelyn J Bishop, Brooke E Crowley, Elizabeth A Haussner, Kenneth B Tankersley, David Lentz, Christopher Carr, Jessica L Thress