The dataset for the paper "Post‑breakup Deformation of the Variscan Basement and Mesozoic Syn-sedimentary Evolution along the Neo‑Tethyan Margin in North‑Eastern Sardinia (Italy)"

This dataset contains all analytical, structural, mineralogical, microstructural, K–Ar, XRD, SEM, and fracture‑analysis data supporting the manuscript “Post‑breakup Deformation of the Variscan Basement and Mesozoic Successions along the Neo‑Tethyan Margin in North‑Eastern Sardinia (Italy)” submitted to Tectonics in may 2026. The archive includes sample metadata, XRD results, K–Ar ages and standards, published comparative ages, SEM imagery with some examples eds spectra for each sample, and FracPaq files used for fracture and dyke analysis. All data correspond exactly to those presented in the submitted article and its Supplementary Materials.