A volcanic ash-fall at the Early/Mid Weichselian-Wurmian transition in the peat bog of Grande Pile ( Vosges, France).

Abstract

We report here on a new ash bed, the 'diopside ash-fall'; its stratigraphic position at the Early/Mid-Weichselian-Wurmian transition is quite firm. At present, radiometric dating does not permit more precise dating of this ash bed than between 53 000-62 000 BP.-from Authors