Evolution of the patagonian-west antarctica margin of gondwana in the palaeozoic–early mesozoic: new models constrained by zircon u-pb ages, and o and hf isotopic compositions
A number of conflicting tectonic models have been proposed to explain the geological relationships between southern South America (Patagonia) and West Antarctica within the palaeo-Pacific margin of Gondwana. Extensive fragmentation and isolation of the various tectonic blocks during Gondwana break-up have complicated interpretations and palaeogeographic reconstructions. In order to explore and test the different tectonic models, I combine zircon U-Pb, Lu-Hf...[Show more]
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