U-Pb ages of detrital zircons from the Nevado-Filabride Complex (Betic Chain)

This dataset include detrital zircon U-Pb zircon age distributions in Paleozoic rocks rocks from the Nevado-Filábride Complex (Betic Cordillera, SE Spain) to test if they from part of the South Iberian paleomargin, or if they are related to the Alpine Allochtonous Internal terranes.
The data set show ages in the text, tables, and figures. The ages are quoted as 206Pb/238U dates for zircons younger than 1500 Ma and as 207Pb/206Pb dates for zircons older than 1500 Ma. Figures include the U–Pb concordia and the youngest zircon population plots for the studied samples.
Zircons were separated using standard heavy-liquid and magnetic techniques in the Department of Geodynamics of the University of Granada.
Zircons grains from the Aulago Fm were hand-picked from the studied samples, several grains of zircon reference standard TEMORA-II (for isotope ratios; Black et al., 2003), one grain of reference standard SL13 zircon (for U concentration, Claoué-Long et al., 1995), plus a few grains of REG zircon (high common lead, for mass calibration) were mounted in a 3.5 cm diameter epoxy mount, polished and examined using optical (reflected and transmitted light) and scanning electron microscopy methods (secondary electrons (SE) and cathodoluminescence (CL)). After extensive cleaning, mounts were coated with ultra-pure gold (8-10 nm) and loaded for SHRIMP analysis. Their U-Th-Pb geochronological analyses were carried out on the SHRIMP IIe/mc instrument of the IBERSIMS lab, University of Granada.
Grains from the Tahal Fm were handpicked and mounted in epoxy, polished, cleaned and gold coated for cathodoluminescence (CL) imaging on a Mira3 FESEM instrument at the John de Laeter Centre (JdLC), Curtin University, Perth, Australia. LA-ICP-MS data collection was performed at the GeoHistory Facility, JdLC, Curtin University, Perth, Australia.

本数据集收录了来自西班牙东南部贝蒂科山脉内华达-菲拉布里德杂岩的古生代岩石中碎屑锆石U-Pb年龄分布数据，旨在验证这些锆石是否属于南伊比利亚古陆缘的一部分，抑或是与阿尔卑斯推覆内部地体相关。
数据集的年龄数据见于正文、表格与图件之中。对于年龄小于1500 Ma的锆石，其年龄以²⁰⁶Pb/²³⁸U比值表示；对于年龄大于1500 Ma的锆石，则以²⁰⁷Pb/²⁰⁶Pb比值表示。本次研究的图件涵盖研究样品的U-Pb谐和图与最年轻锆石种群分布图。
锆石分选工作在格拉纳达大学地质动力学系完成，采用标准重液分选与磁选技术。
奥拉戈组（Aulago Fm）的锆石颗粒从研究样品中手工挑选而来；随后将数粒锆石标样TEMORA-II（用于同位素比值校准，Black等，2003）、1粒标样SL13锆石（用于铀浓度校准，Claoué-Long等，1995）以及少量REG锆石（高普通铅，用于质量校准）与样品锆石一同封装于直径3.5 cm的环氧树脂靶中，经抛光后通过光学显微镜（反射光与透射光）与扫描电子显微镜（二次电子（SE）与阴极发光（CL））进行观测。经过彻底清洗后，靶片被镀上8~10 nm的超纯金层，随后用于敏感高分辨率离子探针（SHRIMP）分析。本次研究的U-Th-Pb地质年代学分析在格拉纳达大学IBERSIMS实验室的SHRIMP IIe/mc仪器上完成。
塔哈尔组（Tahal Fm）的锆石颗粒经手工挑选后封装于环氧树脂靶中，随后进行抛光、清洗与镀金处理，用于在澳大利亚珀斯科廷大学约翰·德莱特中心（JdLC）的Mira3场发射扫描电子显微镜（FESEM）上开展阴极发光成像测试。激光剥蚀电感耦合等离子体质谱（LA-ICP-MS）数据采集工作在该中心的GeoHistory Facility完成。