Data for: B diffusion, related isotope fractionation and the structural role of B in pegmatitic melts

We performed an experimental diffusion study investigating the self- and chemical diffusion of B in a pegmatitic melt under high temperature and pressure. The effect of water on the diffusivity was assessed by conducting nominally dry and water-bearing (3.1–3.9 wt % H2O) experiments. The files contain the diffusion profile data obtained by electron microprobe (D1), femtosecond laser ablation sector field ICP-MS (D2) and femtosecond laser ablation multi collector ICP-MS (D3). D4 shows near infrared spectroscopy data for the calibration of linear molar absorption coefficients. D5 gives all data for solid-state nuclear magnetic resonance experiments.本研究开展了高温高压条件下伟晶岩熔体中硼（B）的自扩散与化学扩散实验研究。通过设置名义干燥与含水（H₂O含量3.1~3.9 wt%）两组实验，评估了水对硼扩散系数的影响。本数据集包含三类扩散剖面数据：分别由电子探针微区分析仪（electron microprobe）测得的D1数据、飞秒激光剥蚀扇形场电感耦合等离子体质谱仪（femtosecond laser ablation sector field ICP-MS）测得的D2数据，以及飞秒激光剥蚀多接收电感耦合等离子体质谱仪（femtosecond laser ablation multi collector ICP-MS）测得的D3数据。其中，D4为用于校准线性摩尔消光系数（linear molar absorption coefficients）的近红外光谱（near infrared spectroscopy）数据；D5则包含固态核磁共振（solid-state nuclear magnetic resonance）实验的全部相关数据。