Identifying crustal contributions in the Patagonian Chon Aike Silicic Large Igneous Province.

Unlabelled: The volcanic rocks of the Chon Aike Silicic Large Igneous Province (CASP) are recognized as magmas dominantly produced by crustal anatexis. Investigating the zircon of the CASP provides an opportunity to gain further insight into geochemical and isotopic differences of the potential magmatic sources (i.e.

Species diffusion in clinopyroxene solid solution in the diopside-anorthite system.

The coupled multicomponent diffusion of the species CaSiO, CaAlSiO and MgSiO was determined in diopside crystals in the diopside/anorthite (Di/An) system at temperatures () of 1110-1260 °C and oxygen fugacities ( ) between 1.0 log unit below and above the fayalite-magnetite-quartz equilibrium (FMQ ± 1). Diffusion couples were prepared by the seed overgrowth technique.