Carbonate Clumped Isotope and U-Pb Data of Calcite Slickenfibers and Veins related to Deformation along the Basal Décollement of the Swiss Jura Mountains

This dataset consists of clumped isotope and U-Pb data of calcite slickenfibers and veins related to deformation along the basal décollement of the Swiss Jura Mountains. Clumped isotope analyses were carried out at the stable isotope laboratory of the Geological Institute at ETH Zurich using a Thermo Scientific Kiel IV carbonate device coupled to a Thermo Scientific MAT253 isotope ratio mass spectrometer. U-Pb analyses were carried out at the Institute of Geochemistry and Petrology at ETH Zurich using an ASI RESOlution S 155, excimer (ArF, 193 nm) laser ablation system coupled to a Thermo Element XR sector-field ICP-MS. All samples originate from outcrops and a deep exploration borehole (Schafisheim well) in the eastern Jura of Switzerland. This dataset constrains both the absolute timing and thermal conditions of deformation along the basal décollement and hence, the formation of the Jura fold-and-thrust belt.

本数据集涵盖与瑞士汝拉山脉基底滑脱层变形相关的方解石擦痕纤维及脉体的团簇同位素(Clumped isotope)与铀-铅(U-Pb)数据。团簇同位素分析于苏黎世联邦理工学院地质研究所稳定同位素实验室完成，采用赛默飞世尔科技Kiel IV碳酸盐岩分析装置，联用赛默飞世尔科技MAT253同位素比率质谱仪。铀-铅分析于苏黎世联邦理工学院地球化学与岩石学研究所完成，采用ASI RESOlution S 155准分子（ArF，193 nm）激光剥蚀系统，联用赛默飞Element XR扇形场电感耦合等离子体质谱仪。所有样品均采自瑞士东部汝拉地区的露头及深部勘探钻孔——沙夫斯海姆钻井（Schafisheim well）。本数据集可为基底滑脱层变形的绝对时限与热演化条件提供约束，进而为汝拉褶皱冲断带的形成机制提供关键支撑。