Structural and geochronological constraints of early Ross orogenic deformation in the Pensacola Mountains, Antarctica

• Main Authors: Curtis, Michael L, Millar, Ian L, Storey, Bryan, Fanning, Christopher
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Association of Engineering Geologists 2015
• Subjects: Keywords: East Antarctica; Mountains; Orogenic deformation; Ross orogeny; Deformation; Geochronology; Granite; Landforms; Limestone; Microstructure; Shrinkage; Stratigraphy; Tectonics; Structural geology; Gondwana; orogeny; Proterozoic; Antarctica; East Antarctica; Polyphase deformation; Transantarctic Mountains; Transpression; Arctic; Hannah; Hannah Ridge; Pensacola Mountains; Serpan Peak; Antarc*
• Online Access: http://hdl.handle.net/1885/80336

During end-Neoproterozoic to early Paleozoic time, the southern margin of Gondwana was affected by widespread subduction-related orogenesis. In East Antarctica this event is known as the Ross orogeny, whose manifestation is exposed along the 3500 km length of the Transant-arctic Mountains. In the Pe...