Late Mesoproterozoic Arc and Back-arc Volcanism in the Heimefrontfjella (East Antarctica) and Implications for the Palaeogeography at the Southeastern Margin of the Kaapvaal-Grunehogna Craton

• Main Authors: Bauer, Wolfgang, Jacobs, Jeffrey Bruce, Fanning, Christopher, Schmidt, R
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Elsevier
• Subjects: Keywords: geochemistry; geochronology; metamorphic rock; paleogeography; petrography; Proterozoic; SHRIMP dating; tectonic setting; volcanism; Antarctica East Antarctica; Geochemistry; Heimefrontfjella; Late Mesoproterozoic; Antarctic; East Antarctica; Dronning Maud Land; Coats Land; Grunehogna; Vardeklettane; Antarc*; Antarctica
• Online Access: http://hdl.handle.net/1885/75420

The nunataks of Heimefrontfjella in Dronning Maud Land (Antarctica) are dominantly composed of juvenile late Mesoproterozoic rocks that were metamorphosed and deformed at about 1080 and 500 Ma. Three discontinuity-bound terranes have been identified, namely the Kottas, Sivorg and Vardeklettane terra...