A New Approach to the Dating of Glacial Moraines: Testing the Reliability of C-14 Dating Remains of the Aeolian Biome in Till Matrix

9314927美国西南部冰河冰川的多恩试验结果表明，通过对从冰雹基质中提取的分散有机物质进行常规放射性碳测量，可以获得14C年龄。根据冰雹形态、地貌地层位置、土壤和风化特征，两个以前被绘制为“威斯康星州晚期”的冰雹，得出的常规放射性碳年龄属于海洋氧同位素年代学的“状态2”。一张标为“威斯康星州早期”的地图显示，14C年龄可能会迅速扩大。这是潜在的危险，因为有许多混杂的因素可能会产生误导年龄。这项建议的目的是评估这种方法是否受到混杂因素的影响，方法是在具有独立年龄控制的地点对收银机进行抽样。

9314927 Dorn Pilot results from glacial moraines in the southwestern United States demonstrate that it is possible to obtain 14C ages from conventional radiocarbon measurements on disseminated organic extracted from the matrix of moraines. Two moraines that were previously mapped as 'late Wisconsin', based on moraine morphology, morphostratigraphic positioin, soils and weathering characteristics, yielded conventional radiocarbon ages that fall within 'state 2' of the marine oxygen isotope chronology. One mapped as 'early Wisconsin' yielded an infinite 14C ages could expand rapidly. this is potentially dangerous, because there are a number of confounding factors that could produce misleading ages. The objective of this proposal is to assess if this method is subject to confounding factors, by sampling tills at sites with independent age control.