Itrium isocontent map (Geochemical Atlas of Spain, 2012)

Iso-content maps of Itrium (Y), 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.本数据集涵盖化学元素钇（Itrium, Y）的等值含量图（iso-content maps），数据来源于西班牙地球化学图集项目（Geochemical Atlas of Spain Project）。本次采样覆盖三类介质：河流沉积物（14864份样品）、表层土壤（0~20cm，13505份样品）及深层土壤（20~40cm，7682份样品）。化学分析包含两种类型：采用四种酸对样品进行全消解（total dissolution），以及采用王水（aqua regia）进行部分消解（partial dissolution）。基于所有采样点的分析结果，通过反距离平方插值法（method of interpolation of the inverse of the squared distance）生成适配1000m×1000m正方形格网的等值含量图，最终成果为对应每类采样介质与分析方法的专属等值含量图。