Whole rock geochemical data from the Mourne Mountains, NI

The Hyperspectral Analysis of the Mourne Mountains (HAMM) project was undertaken from 2020-2022 in Northern Ireland to integrate spectral, geochemical, and remote sensing data from an exposed, non-arid setting. Mourne Mountain Complex (MMC) samples were obtained by donation from the Geological Survey of Northern Ireland (GSNI) and the Sedgwick Museum (University of Cambridge) as well as from the field by the authors. Samples represent the 5 primary granite types (G1, G2, G3, G4, G5), other minor rock types, and alteration styles. Some sample donations were historic and exact locations unspecified. Their reported coordinates are best estimates from historic literature and projections to surface (see notes in the datasets).

Whole rock samples were sent to ALS in Loughrea, Co. Galway for crushing and sodium peroxide fusion followed by mass spectrometry analysis for trace element data. Boron was obtained using glassless digestion. Fluorine and Cl were obtained by KOH fusion and ion chromatography. Sample splits were then fused into Li meta/tetra borate discs for major element oxides and also into pressed pellets for additional trace element analyses by X-ray fluorescence (XRF) at the Geological Survey Ireland's (GSI) Earth Surface Research Laboratory (ESRL) at Trinity College Dublin, Ireland. Both fused discs and pressed pellets were analysed using a PANanalytical Zetium WD XRF. Method codes are present under element headings to denote respective analytical method. Additional data such as REE chondrite normalisation (McDonough & Sun 1995); λ (O'Neill 2016); as well as Ce- and Eu-anomalies, and τ (Anenburg & Williams 2022) are also included.

莫恩山脉高光谱分析（Hyperspectral Analysis of the Mourne Mountains, HAMM）项目于2020年至2022年在北爱尔兰开展，旨在整合裸露非干旱环境下的光谱、地球化学与遥感数据。莫恩山脉杂岩体（Mourne Mountain Complex, MMC）的样品由北爱尔兰地质调查局（Geological Survey of Northern Ireland, GSNI）、剑桥大学塞奇威克博物馆（Sedgwick Museum, University of Cambridge）捐赠，同时也由项目作者野外采集获得。本次样品涵盖5种主要花岗岩类型（G1、G2、G3、G4、G5）、其他次要岩石类型以及蚀变类型。部分捐赠样品为历史留存样本，具体采样位置未被记录，其公布的坐标为基于历史文献推算的地表最佳估算值（详见数据集附注）。
全岩样品被送往位于爱尔兰戈尔韦郡拉夫雷阿的ALS实验室进行粉碎、过氧化钠熔融处理，随后通过质谱分析获取微量元素数据。硼元素通过无玻璃消解法获取；氟与氯元素则通过氢氧化钾熔融结合离子色谱法完成检测。随后将样品分样制成偏硼酸锂/四硼酸锂熔融片以检测主量元素氧化物，同时制成压片样品，交由爱尔兰都柏林圣三一学院爱尔兰地质调查局（Geological Survey of Ireland, GSI）地球表面研究实验室（Earth Surface Research Laboratory, ESRL）进行X射线荧光光谱（X-ray fluorescence, XRF）额外微量元素分析。熔融片与压片样品均使用PANanalytical Zetium WD型X射线荧光光谱仪进行检测。元素标题下方标注了方法代码，以对应各自的分析方法。数据集还包含额外数据，例如稀土元素球粒陨石标准化值（McDonough & Sun，1995）、λ值（O'Neill，2016），以及铈异常、铕异常与τ值（Anenburg & Williams，2022）。