Scandium isocontent map (Geochemical Atlas of Spain, 2012)

Iso-content maps of Scandium (Sc), one of the chemical elements.obtained in the Geochemical Atlas of Spain Project, distributed in stream sediments (14,864 samples), superficial soils (0-20 cm.) (13,505 samples) and deeper soils (20-40 cm.) (7,682 samples). The results of the chemical analysis are shown in two types: total dissolution of the sample with 4 acids and partial dissolution with aqua regia. With the analytical results of all the sampled points, an isocontent map is made with adjustment to a square grid of 1,000 m by the method of interpolation of the inverse of the squared distance. The final result is a map for each type of sample and type of analysis carried out.本数据集为化学元素钪（Scandium, Sc）的等含量分布图（iso-content map），源自西班牙地球化学图集项目（Geochemical Atlas of Spain Project）。采样介质涵盖三类：河流沉积物（共14864件样品）、表层土壤（0~20cm深度，共13505件样品）以及深层土壤（20~40cm深度，共7682件样品）。化学分析采用两种消解方式：样品经4酸全消解，以及经王水（aqua regia）进行的部分消解。基于所有采样点的分析结果，通过反距离平方插值法（interpolation of the inverse of the squared distance）生成分辨率为1000m×1000m的正方形网格等含量分布图，最终得到对应每类采样介质与每类分析方法的成套图集。