EXAMINATION OF BULK SOIL/DETRITAL CHARCOAL AND AMS RADIOCARBON ANALYSIS OF MATERIAL FROM THE RIDGWAY TRENCHES, SOUTHERN COLORADO
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资源简介：
A total of 20 bulk sediment samples from four trenches along a west-facing fault scarp
near Ridgway, Colorado, were floated to recover organic fragments suitable for radiocarbon
analysis. Three detrital charcoal samples also were examined. These samples were recovered
from colluvium in the vertical trench walls. Botanic components and detrital charcoal were
identified, and potentially radiocarbon datable material was separated. Because many of the
samples will date the same event or horizon, four charcoal samples (one from each of the four
trenches) were selected for AMS radiocarbon analysis as initial test to check for consistency.
Based on the dates obtained from these four samples, three additional samples were selected
for AMS radiocarbon analysis.
创建时间：
2013-07-01
