Zircon U-Pb Geochronology and Trace/Rare Earth Element Geochemistry from the Cordillera Blanca batholith and Huayllapa Pluton, Peruvian Andes

This collection presents paired U-Pb and Trace/Rare Earth Element geochemistry from zircons from four samples traversing the N - S exposures of the Cordillera Blanca batholith and from two samples of a previously unnamed pluton near the village of Huayllapa, Lima, Peru (the Huayllapa Pluton). Samples from the Cordillera Blanca batholith are granodiorite, specifically leucogranodiorite. Samples from the Huayllapa pluton are granodiorite and tonalite. Geochronology data in this collection include zircon U concentrations, 206Pb/204Pb ratios, U/Th ratios, 206Pb/207Pb ratios, 207Pb/235U ratios, 206Pb/238U ratios, percent error on isotope ratios, error correlation coefficients, 206Pb/238U dates, 207Pb/235U dates, 206Pb/207Pb dates, and associated percent errors, and 2-sigma errors on 206Pb/238U dates. Based on the age of the samples (<30 Ma), we recommend using 206Pb/238U dates and 2 sigma errors. Trace and rare earth chemistry reported in this collection include concentrations, in parts per million, for La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Y, Ho, Er, Tm, Yb, Lu, Hf, P, Th, U, and Nb. This data was collected to explore temporal and genetic connections between magmas in the Cordillera Blanca and the Cordillera Huayhuash, as well as to assess the origin of zircon date overdispersion in individual samples of the Cordillera Blanca batholith and implications of magmatism for the geodynamic evolution of the region. This dataset is intended to compliment a manuscript submitted for publication in Geosphere.本数据集收录了源自布兰卡山脉岩基（Cordillera Blanca batholith）南北向出露区的4件锆石样品，以及秘鲁利马瓦伊拉帕村附近此前未命名的岩体——瓦伊拉帕岩体（Huayllapa Pluton）的2件锆石样品的配套U-Pb同位素与微量元素/稀土元素地球化学数据。布兰卡山脉岩基的样品类型为花岗闪长岩，具体为淡色花岗闪长岩。瓦伊拉帕岩体的样品类型为花岗闪长岩与英云闪长岩。本数据集包含的地质年代学数据包括：锆石铀（U）浓度、206Pb/204Pb比值、U/Th比值、206Pb/207Pb比值、207Pb/235U比值、206Pb/238U比值、同位素比值百分比误差、误差相关系数、206Pb/238U年龄、207Pb/235U年龄、206Pb/207Pb年龄及其对应的百分比误差，以及206Pb/238U年龄的2σ误差。鉴于样品年龄小于30 Ma，本数据集建议采用206Pb/238U年龄及其2σ误差。本数据集收录的微量元素与稀土元素地球化学数据以百万分之一（ppm）为单位，包含镧（La）、铈（Ce）、镨（Pr）、钕（Nd）、钐（Sm）、铕（Eu）、钆（Gd）、铽（Tb）、镝（Dy）、钇（Y）、钬（Ho）、铒（Er）、铥（Tm）、镱（Yb）、镥（Lu）、铪（Hf）、磷（P）、钍（Th）、铀（U）及铌（Nb）的浓度。本数据集的采集目的在于探究布兰卡山脉与瓦伊胡阿什山脉（Cordillera Huayhuash）岩浆活动的时空与成因联系，同时评估布兰卡山脉岩基单件样品中锆石年龄分散性的成因，以及该区域岩浆作用对区域地球动力学演化的指示意义。本数据集旨在配合一篇已投稿至《Geosphere》期刊的论文发表。