Elemental Composition Analysis on the Lower Salmon River by ICPAES.  Lonnie Hetschel2005

 

CH461

 

Abstract;

Three different sediment samples were analyzed from a geoarchaeolical site on the lower Salmon River in western Idaho. It was suspected that SR-69 unit 21 was potentially from a megaflood event that was brought upstream from the Snake River, and if this was so, it was suspected that the elemental concentrations would be significantly different from sediment layers SR-64 units 6 and 15 which were suspected to be of local origin. Twenty elements were analyzed by AES-ICP ten of these produced results that were within the range for the equipment. Using Students’s t, seven elements from this remaining ten showed significant differences in concentration, and an eighth elements was probable, but partially outside the range.