Analytical Data for Multi-Stage Assembly of the Utuado Pluton, Puerto Rico: Evidence from Enclaves and Amphibole Geochemistry

This dataset contains all analytical results used in the study “Multi-stage Assembly of the Utuado Pluton, Puerto Rico: Evidence from Enclaves and Amphibole Geochemistry” that has been submitted for publication. The data integrate whole-rock major and trace element compositions, electron microprobe analyses of amphibole major elements, and LA-ICP-MS trace element analyses of amphiboles from enclaves and granodioritic host rocks within the Utuado Pluton.

Whole-rock geochemical data include major elements (XRF) and trace elements (ICP-MS) for samples collected from two field localities (Cañon Blanco Utuado and Río Jayuya Utuado). These data were used to characterize magma compositions, evaluate enclave–host relationships, and assess evidence for hybridization and melt extraction within the pluton.

Amphibole major element data (EPMA) document patchy zoning and intra-crystal chemical domains (Zones 1–3) that preserve discrete stages of crystallization and magma recharge. Amphibole trace element data (LA-ICP-MS) provide insight into melt evolution, mineral–melt partitioning behavior, and subduction-related geochemical signatures.

Together, these datasets support thermobarometric calculations, equilibrium-melt estimates, and the interpretation of magmatic processes including recharge, mingling, hybridization, and limited melt extraction during incremental pluton assembly. All files are provided in spreadsheet format with sample identifiers, analytical conditions where applicable, and variable descriptions to facilitate reuse.

本数据集包含已提交待发表的研究论文《波多黎各乌图阿多岩体多阶段就位：来自包体与角闪石地球化学的证据》（"Multi-stage Assembly of the Utuado Pluton, Puerto Rico: Evidence from Enclaves and Amphibole Geochemistry"）中所用的全部分析结果。本数据集整合了乌图阿多岩体包体与花岗闪长岩寄主岩的全岩主量与微量元素组成、角闪石主量元素电子探针分析（Electron Probe Micro-Analysis, EPMA）结果，以及角闪石的激光剥蚀电感耦合等离子体质谱（Laser Ablation Inductively Coupled Plasma Mass Spectrometry, LA-ICP-MS）微量元素分析数据。

全岩地球化学数据涵盖了采自两个野外采样点（卡尼翁布兰科乌图阿多与里奥哈尤亚乌图阿多）的样品的主量元素X射线荧光光谱法（X-ray Fluorescence, XRF）与微量元素电感耦合等离子体质谱法（Inductively Coupled Plasma Mass Spectrometry, ICP-MS）测试结果。该类数据用于表征岩浆组成、评估包体与寄主岩的成因关联，以及解析岩体内部的岩浆混合与熔体提取证据。

角闪石主量元素EPMA数据揭示了斑块状环带与晶内化学域（1~3带），该结构保留了结晶与岩浆补给的离散阶段信息。角闪石微量元素LA-ICP-MS分析数据则为熔体演化、矿物-熔体分配行为以及与俯冲相关的地球化学特征提供了研究依据。

综合上述数据集，可支持温压计计算、平衡熔体估算，以及对岩浆作用过程的解读，包括增量式岩体就位过程中的岩浆补给、混合、杂交与有限熔体提取。所有数据均以电子表格格式提供，包含样品标识符、适用的分析条件与变量说明，以方便后续复用。