EXTRACTION OF SEDIMENT SAMPLES FOR RADIOCARBON DATABLE MATERIAL AND PARTICULATE ORGANIC MATERIAL FROM THE CHINO VALLEY ROAD CUT, ARIZONA

Four samples from an exposed fault graben in a road cut in Chino Valley, Arizona, were floated to recover charred material suitable for AMS radiocarbon dating. None of the samples yielded sufficient macrocharcoal for dating; therefore, the samples were processed in an attempt to recover microscopic charcoal/particulate soil organics for dating. Two of these samples yielded particulate soil organics that were submitted for dating.