Oxygen and radiogenic isotope compositions for whole-rock from the Oumjrane gabbronorite, Eastern Anti-Atlas, Morocco

This dataset provides whole-rock isotopic data from the Oumjrane gabbronorite intrusion, located in the eastern Anti-Atlas (Morocco), within the Northwest African Variscan belt. Samples were collected from a fully cored borehole intersecting a mafic intrusion emplaced within Paleozoic sedimentary successions of the Tafilalet–Maider basins during field campaigns conducted between 2021 and 2023.