A uniformly filtered, provenance-verified detrital-zircon U–Pb compilation for Cretaceous basins of East China and the Korean Peninsula

Harmonised, provenance-verified grain-level detrital-zircon (DZ) U-Pb compilation for Cretaceous basins of East China and the Korean Peninsula. 4,079 concordant analyses from 24 sample-equivalents across five East China basins (Songliao, Jiaolai, Yishu, Jianghan, Ganzhou) and the Korean Gyeongsang Basin (Sindong and Hayang groups), re-typed at grain level from ten published studies, filtered toward a common concordia-distance criterion (d_c = 4.6 %), uncertainty-harmonised to 1 sigma, with a Crossref-verified source DOI for every grain. This dataset accompanies a data paper submitted to Earth System Science Data (ESSD). FILES- dz_ages_cross_regional_v5.csv — 4,079 grain-level analyses. Columns: sample_id, basin, region, age_ma, age_err_1s, disc_pct, platform, best_age_system, source_doi.- dz_ages_cross_regional_v5_samples.csv — per-sample provenance (24 rows): sample_id, basin, region, n_grains, source_citation, source_doi.- dz_ages_cross_regional_v5_README.md — data dictionary, methods, cleaning log, known limitations.- Table2_bibliographic_corrections.md — printed-versus-corrected source citations (9 of 10 sources corrected during compilation). DATA SOURCES (provenance-corrected; full DOIs in the samples table and Table 2)Choi et al. (2020); Hu et al. (2025); Lee & Park (2020); Lin et al. (2024); Song et al. (2022); Wang J et al. (2016); Wang J et al. (2022); Xiang et al. (2025); Zhang L-X et al. (2021); Zhang R et al. (2026). No new analytical data were generated; this is a curated, harmonised compilation of published grain-level measurements.