publication . Article . 2008

Age and kinematics of ductile deformation in the Cerro Durazno area, NW Argentina: Significance for orogenic processes operating at the western margin of Gondwana during Ordovician – Silurian times

M. I. Wegmann; U. Riller; F. D. Hongn; Johannes Glodny; Onno Oncken;
Open Access
  • Published: 01 Jan 2008 Journal: Journal of South American Earth Sciences, volume 26, pages 78-90 (issn: 0895-9811, Copyright policy)
  • Publisher: Elsevier BV
  • Country: Germany
Abstract
Abstract The Cerro Durazno Pluton belongs to a suite of Paleozoic granitoid intrusions in NW-Argentina, that are central for understanding the tectonic setting of the western margin of Gondwana in Ordovician and Silurian times. The pluton and its host rocks were tectonically overprinted by metamorphic mineral shape fabrics formed under middle greenschist-facies metamorphic conditions and associated with the nearby Agua Rosada Shear Zone. Kinematic analysis of the shear zone based on the geometric relationship between individual segments of the shear plane and principal axes of mineral fabric ellipsoids indicates reverse-sense of shear with a minor component of l...
Subjects
free text keywords: Earth-Surface Processes, Geology, Shear zone, Ordovician, Metamorphic rock, Gondwana, Magmatism, Petrology, Pluton, Geochemistry, Paleozoic, Metamorphism, Geomorphology
Powered by OpenAIRE Open Research Graph
Any information missing or wrong?Report an Issue
publication . Article . 2008

Age and kinematics of ductile deformation in the Cerro Durazno area, NW Argentina: Significance for orogenic processes operating at the western margin of Gondwana during Ordovician – Silurian times

M. I. Wegmann; U. Riller; F. D. Hongn; Johannes Glodny; Onno Oncken;