Geochronological and geochemical data of volcanic deposits of the Central Main Ethiopian Rift

This database represents a collection of geochronological data, geochemistry of bulk rocks and melt inclusions from a large set of samples collected in the framework of two field surveys (2019, 2020) in the Central Main Ethiopian Rift.

This dataset provides supporting information to the paper:Franceschini Z., Cioni R., Scaillet S., Prouteau G., Corti G., Sani F., Mondanaro A., Frascerra D., Melaku A.A., Scaillet B., Oppenheimer C., Duval F. (2024) "Pulsatory volcanism in the Main Ethiopian Rift and its environmental consequences", Nature Communications Earth and Environment.

The samples have been prepared for the different analyses at the Department of Earth Sciences of the University of Florence. The geochronological analyses building up the dataset have been performed at the Argon facility at the Institut des Sciences de la Terre d'Orléans (ISTO), in France. The analythical methods related to the 40Ar/39Ar analyses are described in detail in the above mentioned paper.The geochemical dataset contains the results of major and trace elements concentrations on whole rock samples (performed at the Service d'Anlayse des Roches et des Mineraux -CNRS - CRPG of Nancy, in France) and major elements and volatile concentrations of melt inclusions belonging to four ignimbrite samples (analysed with an Electron Micro Probe Analyzer housed at the laboratories of the Institut des Sciences de la Terre d'Orléans, in France).

These datasets have been performed in the frame of a PhD fellowship (granted to Zara Franceschini) funded by the Università Italo Francese (Bando Vinci 2018, n. C3-1717) and also partially supported by the Italian Ministero dell'Università e della Ricerca (MiUR) through PRIN grant 2017P9AT72.