A revised interpretation of the Chon Aike magmatic province: Active margin origin and implications for the opening of the Weddell Sea

• Published in: Lithos
• Main Authors: Bastias Silva, Miguel Joaquin, Spikings, Richard Alan, Riley, Teal, Ulianov, Alexey, Grunow, Anne, Chiaradia, Massimo, Hervé, Francisco
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2021
• Subjects: info:eu-repo/classification/ddc/550; Antarctic; Antarctic Peninsula; Patagonia; Rocas; The Antarctic; Weddell; Weddell Sea; Antarc*
• Online Access: https://archive-ouverte.unige.ch/unige:152181

Late Triassic – Jurassic igneous rocks of the Antarctic Peninsula and Patagonia provide evidence for the evolution of the margin of southwestern Gondwana. We present new geochronological (LA-ICP-MS zircon U\Pb dates) analyses of 12 intrusive and volcanic rocks, which are complemented by geochemical...