Nước sinh hoạt cho vùng cao nguyên đá vôi, còn đòi hỏi các nguồn ( núi lửa) phải đủ lớn để lấp nhét đầy các khe nứt và hang hốc của đá vôi, đồng thời có nhiều nước ngầm. | 266 U gur Y aramanci Marian Hertrich immediate transition into a second undulating water bearing layer towards right side. Both structures have their lower boundary at a layer of very low water content at some 20 m. Below this zone a second aquifer appears at some 40-50 m depth. The lower boundary of the low water content zone shows a significant depression at around 20 m on the profile. The trisection of the section into a first aquifer confining bed and second aquifer can be roughly estimated from the 2D inversion using only the coincident soundings as shown in the second model in the left hand side of the figure. A resolution of a depth variation of layer boundaries or a discrimination of structures within the layers is however not given. The single 1D inversions and the pseudo2D plot Fig. bottom and above do also just roughly show the structure of a low water content layer between two aquifers but does not reflect the structure of this body as it is rendered by full 2D inversion of the complete dataset. Comparing the uppermost 30 m of the complete inversion result of the MRS survey including all available data to the inversion result of a resistivity section in Wenner configuration of 2 m basic electrode spacing allows a combined interpretation. The top layer showing water contents close to zero is represented by resistivities of some 4000 Qm from the left to P3 and less than 100 Qm from P3 to the right. This corresponds to a dry sand layer at the left changing to clay material of the outcropping till layer to the right. The first aquifer intersected at around P2 has water contents of about 35 in the left area and slightly less in the right part. However only the left part is represented by increased resistivities from the resistivity of the surrounding clayey material. From the vanishing difference in resistivities of the right part of the aquifer a significant clay content and a corresponding reduced hydraulic permeability can be assumed here. From the .
