The Gondwanan margin in West Antarctica: insights from Late Triassic magmatism of the Antarctic Peninsula

• Published in: Gondwana Research
• Main Authors: Bastías, Joaquín, Spikings, Richard, Ulianov, Alex, Riley, Teal, Burton Johnson, Alex, Chiaradia, Massimo, Baumgartner, Lukas, Hervé Allamand, Francisco, Bouvier, Anne-Sophie
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2020
• Subjects: Zircon U-Pb; Eastern Palmer Land; Rare-earth-elements; I-type granites; Lu-Hf; Break-up; Tectonic evolution; Trace-element; South-America; Graham land; Antarctic; Antarctic Peninsula; Graham Land; Pacific; Palmer Land; Terra Australis; The Antarctic; Thurston; Thurston Island; West Antarctica; Antarc*; Antarctica
• Online Access: https://doi.org/10.1016/j.gr.2019.10.018; https://repositorio.uchile.cl/handle/2250/175048

Triassic orthogneisses of the Antarctic Peninsula provide evidence for the Palaeozoic and Mesozoic geological evolution of southern Gondwana within Pangaea. These rocks are sporadically exposed in southeastern Graham Land and northwestern Palmer Land, although reliable geochronological, geochemical...