Donnerstag, 19. März 2009

Re: Fluvioglacial sediments from Baumkirchen (Austria)

Johannes has a very interesting post about his memorys on a visit to the (or at least one of the) key sites for the quaternary history of the eastern Alps - Baumkirchen, and his fluvioglacial clays (even if they in reality are fine sands, with "true" clay-minerals missing).
C14 dates have given an age of 31.000 to 27.000 years, a dated wood of
Pinus sylvestris - but found in a slumped area- gave a date of 11.000 years B.P (FLIRI 1973).
There were even some fossils, mostly pollen grains and parts of arthropods (ostracods and insects), but also some mysterious ichno-fossils:

FLIRI (1973): Beiträge zur Geschichte der alpinen Würmvereisung: Forschungen an den Bändertonen von Baumkirchen (Inntal, Nordtirol). N.F. Z. Geomorph. Bd. 16: 1-14
RESCH (1972): Mikropaläontologische Untersuchungen im Bänderton von Baumkirchen (Inntal, Tirol). Zeitschrift für Gletscherkunde und Glazialgeologie. Bd. 8: 215-230

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