OxCal Bayesian Age Model — Cordillera Blanca Fault Zone (CBFZ) Paleoseismic Trenches

This dataset contains the OxCal Bayesian age model (input script and exportedposterior probability distributions) used to construct the paleoseismic eventchronology for the Cordillera Blanca Fault Zone (CBFZ), northern Peruvian Andes,as presented in: > Benavente, C., Rosell, L., Palomino, A., Wimpenny, S., Rosell, J., & García, B.> (2026). Active Extension above the Peruvian Flat Slab: Segmentation, Slip-Rate> Variability, and Paleoseismicity of the ~300-km-long Cordillera Blanca Fault> Zone. *Tectonics* (submitted, manuscript #2026TC009634). Stratigraphic sequences were modeled independently for each trench site usingthe OxCal Sequence–Boundary–Phase framework (Bronk Ramsey, 2008, 2009), withradiocarbon ages calibrated against the Southern Hemisphere calibration curveSHCal20 (Hogg et al., 2020), appropriate for the study area latitude (8–10°S).