Chronological study of the pre-Permian basement rocks of southern Patagonia

• Main Authors: Pankhurst, Robert J, Rapela, Carlos W, Loske, W, Marquez, M, Fanning, Christopher
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Pergamon-Elsevier Ltd 2015
• Subjects: Keywords: basement rock; Gondwana; ion microprobe; mass spectrometry; paleogeography; tectonic reconstruction; uranium-lead dating; zircon; South America Argentina; Granites; Southwest Gondwana; U-Pb SHRIMP; Antarctic; Antarctic Peninsula; Argentina; Golondrina; Magallanes; Patagonia; The Antarctic; Antarc*; Tierra del Fuego
• Online Access: http://hdl.handle.net/1885/86044

Small outcrops of the basement of the Deseado Massif, consisting of weathered, altered granitoids and their metasedimentary host rocks, were dated by the U-Pb zircon method using thermal ionization mass spectrometry and ion microprobe (SHRIMP). The provenance ages of detrital zircon in the metasedim...