中子活化
Neutron activation analysis linked an artifact from Chetro Ketl to the Cerrillos Turquoise Mines, located south of Santa Fe, New Mexico. Analysis of chipped stone from Chetro Ketl's trash mound indicates that more than fifty percent of the chert found there was imported from Washington Pass in the Chuska Mountains, away. The Chacoans enjoyed a bounty of imports from throughout the San Juan Basin, but little evidence of exports from the canyon has been found. This suggests they were consumers, but not producers or distributors of goods.