In the usual geophysical works we need to confirm the validity and accuracy of the
information on the presence of geological information and wells(bore holes).In this research
note the principle is different above,where geological information failed,despite of their
number and high cost,which have drilled 20 wells,but failed to identify th engineering
reality.And while the exact geophysical technique executed (the electrical resistivity method)
in determining the structural situation and the depth of the water.The reason for this unusual
case,because of presence of a large thickness of sediments(recent sediments),which is multiinterbedded
sediments of silt,sand,and gravel,and lack of (marked beds) in the drilled depth of
the well(20m) to correlate between them to get the precise structural and geological
situation.so in this cases, comp-ilation of many investigation methods ,engineering ,drilled
borehole,hdr-Ologyand geophysics carried out in Kubasia area to study site area properties.
Drilling of 24 boreholes gave misleading geological solution on the Problem because no
geological correlation can be done which causesfrom High varieties of rock type(no marked
bed) only recent sediments,so in this situation geophysical method be the more suitable in
solving problem |