Petrography descriptions and U-Pb zircon datasets from the Archean Pavas Block, Precambrian of Uruguay

Henri Masquelin (1) , Tahar Aïfa (2) , Fernando Scaglia (1) , Miguel a S Basei (1) , Miguel A.S. Basei (3)

1 UDELAR - Facultad de Ciencias
2 GR - Géosciences Rennes
3 USP - Universidade de São Paulo = University of São Paulo

This database is a geological and geochronological compilation made to study a small Archean/Paleoproterozoic block located in the centre of the Precambrian rock exposition of Uruguay. Petrographic and field outcrops data supporting the samples from which the zircons for textural analysis and U-Pb dating (LA-ICP-MS) come are presented at first with their descriptions. The first table (1) contains the new U-Pb isotopic data. The second table (2) presents a correlation of textures from different zircon samples. The last table (3) contains an inventory of different U-Pb ages found in antecedents. All these data are associated with the paper entitled: "The Archean Pavas Block in Uruguay: extension and tectonic evolution based on LA-ICP-MS U-Pb ages and airborne geophysics".

Mots clés: Gneiss complex; Nico Pérez Terrane; Zircon texture; Orosirian; U-Pb geochronology

Domaines: Pétrographie; Géochimie

Henri Masquelin, Tahar Aïfa, Fernando Scaglia, Miguel a S Basei, Miguel A.S. Basei. Petrography descriptions and U-Pb zircon datasets from the Archean Pavas Block, Precambrian of Uruguay. Data in Brief, 2021, 37, pp.107179. ⟨10.1016/j.dib.2021.107179⟩. ⟨insu-03268326⟩