Karst structures not yet manifest in soil sagging

The georadar section shows, in the soil under the road surface, a cone-shaped structure typical of vertical development of underwashing. The suffusion shakehole passes through a dolomite mass (5 - 20 m) and is visible down to 50 m deep. As a rule, that is what initial karst development stages look like.

Surface horizon (2-12 m): filled soil. At this horizon local zones of high humidity are registered;


Surface soil sagging zone;

Surface ground waters vertical movement zone
(the suffusion shakehole, karst);

The horizon of homogeneous monolith dolomite;


The horizon of fractured dolomite or destroyed down to chippings, debris, or rock-flour;


High humidity soil zone

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