D2U1R1I1C3R1U1S1T1
12 points
DURICRUST is validvalid
a surface mineral crust left behind by groundwater evaporation
gravel, sand, or desert debris cemented by calcium carbonate, an accumulated product of chemical weathering in a dry climate
a surface mineral crust left behind by groundwater evaporation
gravel, sand, or desert debris cemented by calcium carbonate, an accumulated product of chemical weathering in a dry climate