Petrographic and mineral-glass chemical dataset of igneous rock clasts from Early Oligocene Aveto-Petrignacola Formation (Northern Italy).

ABSTRACT: This dataset article contains petrographic and mineral-glass chemical data of igneous rock clasts from Early Oligocene Aveto-Petrignacola Formation (APF; Northern Italy). Methods for obtaining the dataset include optical microscopy, scanning electron microscopy and electron probe microanalysis. The APF volcanic rocks are basalts, basaltic andesites, andesites, dacites and rhyolites. Rare gabbroic cumulate nodules complete the dataset. Basalts are porphyritic, with calcic plagioclase (An_72-92Ab_7-27Or_0-1), ferroan enstatite (En_59-68Fs_29-37Wo_3-4) and augite (En_38-39Fs_18-20Wo_41-44) phenocrysts, in a hypocrystalline groundmass made up of bytownite (An_71-85Ab_14-28Or₁

SUBMITTER: Mattioli M 

PROVIDER: S-EPMC7390791 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature