Description

This Paper is dedicated to the memory of Dr. Elvin Taylor

AMS-based 14C ages have been obtained on plant, wood, and charcoal fragments taken from a series of 1-cm segments of a 94.5 cm long core drilled into sediments adjacent to archaeological site of Monte Verde, Chile. With four exceptions, the 14C values on organics taken from about the lower approximately 25-cm of the core (70-94.5 cm levels) suggests a relatively rapid deposition of sediments. A Bayesian analysis of the 14C values have narrowed the time interval provided by the 14C data for the high-sediment rate depositional segment of the core. During the deposition of the sediments in that segment of the core, there are four instances which may indicate that sediments from one or more older watershed area(s) were being transported into the sediment accumulation zone from which the core was taken for relatively short periods of time. In two of these cases, 14C ages on the organics from 2 adjacent 1-cm increments were about 1250 14C years older than organics in both adjacent levels. With these exceptions, 14C ages obtained on the sediment organics in the bottom 25-cm segment of this core are consistent with the 14C values previously reported on artifacts and other materials excavated from the adjacent archaeological site.

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