Surgeon island granite SHRIMP zircon ages: a clue for the Cambrian tectonic setting and evolution of the Palaeopacific margin of Gondwana (northern Victoria Land, Antarctica)

• Published in: Terra Nova
• Main Authors: Fioretti, A, Caponi, G., Black, Lance, Varne, R, Visonà, Dario
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Blackwell Publishing Ltd
• Subjects: Keywords: Cambrian; Gondwana; paleogeography; SHRIMP dating; tectonic setting; Antarctica; Arctic and Antarctic; East Antarctica; Victoria Land; World; Arctic; Antarctic; Bowers; Robertson Bay; Surgeon Island; Antarc*
• Online Access: http://hdl.handle.net/1885/82752; https://doi.org/10.1111/j.1365-3121.2005.00606.x; https://openresearch-repository.anu.edu.au/bitstream/1885/82752/5/MigratedxPub10961_2005.pdf.jpg; https://openresearch-repository.anu.edu.au/bitstream/1885/82752/7/01_Fioretti_Surgeon_island_granite_SHRIMP_2005.pdf.jpg

In northern Victoria Land (NVL), Antarctica, the palaeopacific margin of Gondwana is made up of the inboard Wilson (WT) and the two outboard Bowers (BT) and Robertson Bay (RBT) terranes. The occurrence of a Cambro-Ordovician magmatic arc in the WT argues