Gobi Altai, Khangai and Khentii Mountains mapped by a mixed-method cartographic approach for comparative geophysical analysis

A novel mixed-method cartographic approach reveals strong correlations between gravity anomalies, topography, geological units, and geomorphological landforms across Mongolia's Gobi Altai, Khangai, and Khentii Mountains. The study identified distinct gravity anomaly patterns: the highest values (<80 mGal) correspond to the Altai and Khangai Mountain ranges, while negative values (<-80 mGal) dominate the Uvs Nuur and Khyargas Nuur basins. NE- to NNE-oriented faulting and rift basins were clearly visible in geophysical grids and geological maps. The methodology integrated high-resolution datasets (GEBCO, gravity raster, USGS geological data, SRTM-90 DEM) with tools like GMT, R programming ('raster' and 'tmap' libraries), and QGIS to produce nine new maps. This approach advances cartographic methods for regional geological studies in Mongolia.

Lemenkova, P. (2021). Gobi Altai, Khangai and Khentii Mountains mapped by a mixed-method cartographic approach for comparative geophysical analysis. Mongolian Geoscientist, 26(52), 62–79. https://doi.org/10.5564/mgs.v26i52.1512