Parcs

ID	TITEL	DATENTYP	AUTOR	JAHR
27622	Bibliographie NPHT	Project	Nationalparkrat Hohe Tauern	2013

Bemerkungen/Beschreibung

Universität Innsbruck, Dissertation: 2006, 120 pp
This PhD study focused on two cave sites in the Austrian Alps: The Wilder Mann Cave in the Allgäu Alps near the Austrian-German border and the Entrische Kirche at the entrance of the Gastein valley (Salzburg). U-Th dating was successful for the Entrische Kirche, where we retrieved a record spanning the transition from the last interglacial (Eemian) to the beginning of the last glacial cycle (Würmian). For the Wilder Mann Cave, U-Th dating on the high alpine cave calcites yielded ages >450 kyr. The high U content of these samples, however, allowed us to constrain the growth periods for these speleothems to the Late Pliocene and the Early Pleistocene using the U-Pb dating technique. This study thus reports on the first absolutely dated speleothems from the Northern Calcareous Alps covering the Plio-Pleistocene transition. After stimulation with an UV light source all speleothem samples used in this study revealed microscopic lamination either for the entire growth period or for individual growth sections. The highly regular nature of these laminae suggests an annual origin and we developed a software tool in order to analyze these long laminated sequences efficiently. Software development lasted for ca. two years in total and resulted in a commercially available software package (the WinGeol Lamination Tool). [Autor]

Eintrag Nr. 13290

Laminierte Speläotheme als hochauflösendes Archiv des alpinen Paläoklimas