Philip T. Leat

TL;DR: Petrographic and geochemical studies of peridotites from the South Sandwich forearc region provide new evidence for the evolution of the south-sandwich arc-basin system and for the nature of interactions between arc magma and oceanic lithosphere as mentioned in this paper.

TL;DR: The field occurrence, age, classification and geochemistry of the Mesozoic volcanic rocks of Patagonia and West Antarctica are reviewed, using published and new information in this paper, where a diachronism is recognized between the Early-Middle Jurassic volcanism of eastern Patagonian (Marifil and Chon Aike formations) and the Middle Jurassic-earliest Cretaceous volcanisms of the Andean Cordillera (El Quemado, Ibanez and Tobifera formations).

TL;DR: In this article, age-corrected Nd, Pb, and Sr isotopic data for 46-150 Ma seafloor lavas from sites in the western Indian Ocean and ocean-ridge-type Tethyan ophiolites (Masirah, Yarlung-Zangpo) reveal the presence of both Indian-Ocean-type compositions and essentially Pacific-North Atlantic-type signatures.

TL;DR: In this paper, the origin of V1 and V2 rhyolites from the Antarctic Peninsula using major and trace element and isotopic (Sr, Nd, O) data was evaluated.

TL;DR: The role of silicic magmatism in the evolution of a large igneous province and rifted margin may therefore be largely overlooked as discussed by the authors, however, due to the lack of detailed structural features, such as dike swarms, major intrusions, and deeply subsided intracaldera µlls, the role of these volcanic rocks is not fully explored.