Geochemical Characteristics of the Conterminous United States: % Na2O

This raster depicts the percentage of lithological sodium oxide (Na2O) content in surface or near surface geology. We derived these rasters by calculating the average...本栅格数据（raster）展示了地表及近地表地质中岩性氧化钠（Na₂O）的百分含量。本研究通过计算平均值……得到了此类栅格数据。