Thermal Annealing Kinetics of Induced Fission Tracks in ZAD Zircon from the Serra Geral Volcanic Complex, Brazil

This dataset contains comprehensive fission track length measurements and thermal annealing experimental data from ZAD zircon samples collected from rhyodacite layers of the Serra Geral Volcanic Complex, Paraná Magmatic Province, Brazil. **Dataset Contents:**- 1,331 fission track length measurements- Only induced fission track data- Thermal annealing experiments across various conditions (500-800°C, 1-100 hours)- 1,034 microscopy images (TIFF format) of fission tracks- Complete experimental protocols and quality control documentation **Scientific Context:**The ZAD zircon samples (134.4 ± 1.1 to 135.6 ± 1.8 Ma) provide critical data for understanding zircon thermochronology and radiation damage effects on annealing kinetics. This research demonstrates that accumulated α-recoil damage significantly influences fission track annealing rates, with ZAD exhibiting lower activation energy (62±14 kcal/mol) compared to reference samples. **Experimental Approach:**Samples underwent standardized pre-annealing treatment (1100°C for 1 hour), thermal neutron irradiation (1×10¹⁵ neutrons/cm²), systematic thermal annealing experiments, chemical etching (KOH-NaOH eutectic at 248°C), and optical microscopy analysis following international fission track protocols. **Quality Assurance:**Statistical validation using Kolmogorov-Smirnov tests, Mann-Whitney U tests, and Cohen's d effect size calculations ensures measurement consistency and eliminates analyst bias. Data retention rate of 90.9% demonstrates high-quality sample preparation and analysis. **Applications:**This dataset supports research in low-temperature thermochronology, thermal history reconstruction, radiation damage studies, and geological thermal modeling. Data are immediately applicable for annealing kinetics modeling and comparative thermochronological studies. **Related Publication:**Sales, A.S.W., Dias, A.N.C., Guedes, S., Medeiros, M.G., Pereira, V.Q. (2025). Thermal Annealing Kinetics of Induced Fission Tracks in ZAD Zircon from the Serra Geral Volcanic Complex, Brazil.