Schwerminerale vulkanischer Herkunft in quartären Flußablagerungen der Weser und Leine

Dierk Henningsen
Quaternary fluvial deposits of the rivers Weser and Leine contain abundant heavy minerals of volcanic origin (mainly Augites and Oxyhornblende). The amount of these minerals decreases from South to North and mostly, with growing age of the sediments. The volcanic minerals have been traced back to the oldest Quaternary. Probably the sources of the volcanic minerals are enormous tuff eruptions In the Eifel region during the early Quaternary, perhaps supplemented by volcanic ashes from other...