Quantification of deformation processes in the Torlesse accretionary wedge, New Zealand [Elektronische Ressource] / Hagen Karl Deckert

Quantification of deformation processes in the Torlesse accretionary wedge, New Zealand Dissertation zur Erlangung des Grades „Doktor der Naturwissenschaften“ am Fachbereich Geowissenschaften der Johannes Gutenberg – Universität Mainz Hagen Karl Deckert geboren in Erlenbach am Main Mainz, August 2003 Erklärung Ich versichere hiermit, die vorliegende Arbeit selbständig und nur unter Verwendung der angegebenen Quellen und Hilfsmittel verfasst zu haben. Mainz, August 2003 Tag der mündlichen Prüfung: 14.11.2003 Summary In this study structural data, strain determinations, and geochemical analyses are used to explore the tectonic evolution of the Torlesse accretionary wedge, New Zealand. The results provide information on the significance of deformation mechanisms and mass transfer, which additionally allow to comment on the flow paths and exhumation history of high-pressure rocks within this tectonic setting. The Torlesse wedge in New Zealand’s South Island represents a long-lived accretionary wedge that formed above a south-westward-dipping subduction zone during Permian to Late Cretaceous convergence between the Pacific oceanic plate and the east Gondwana margin.