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Runoff processes in Mongolian drainage basins have received little study. The present work clarifies differences in runoff characteristics between granite (G-basin) and sandstone (S-basin) drainage basins near Ulaanbaatar. The drainage area of the G- and S-basins studied is 1.675 and 2.695 km2 and the maximum relief is 450 and 500 m, respectively. These hydrological measurements reveal clear differences...
The possibility of in situ rapid, non-destructive measuring of rock moisture content using an infrared optical moisture meter is examined. A laboratory test indicates that a linear relation is found between absorbance intensity of infrared rays and the moisture content of the surface of rock samples. The instrument was applied in the field in order to understand the weathering processes in sandstone...
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