Remote
sensing technique is being increasingly used in groundwater exploration because
of their utility in identifying and outlining various ground features, which
serve as indicators for groundwater exploration. Hence in this context, for
targeting groundwater potential, the hydrogeomorphological conditions and
structural features of West Suvarnamuki River Basin has been studied using IRS
data. The study basin is a tributary of River Vedavati, with an areal extent of
1831 sq.kms. The quantitative geomorphic studies indicate that the basin is a
good catchment based on drainage density and also lithology and structures
control the slope. The structural
features viz., lineaments, reveal that
groundwater prospects are better along and at the intersection of lineaments and
also in valley fills. The lineament density of the basin is 0.17 km/km2,
which is considered as a good index of groundwater accumulation. Aquifer
characters indicate that “Transmissibility” and “Storage Coefficient”
values are high in central region in the study basin, which coincides with the
valley fills, in zones of lineaments concentration and also the converging
flowlines. Hence, these interpretation along with hydrogeomorphic
interpretations point out that groundwater potential zone in the study basin is
confined to South Western and North Eastern parts of the basin, which is further
substantiated by the specific capacity values of the wells in these regions.
Address:
Department of Geology,
Bangalore University, Bangalore
Phone: 3214001 Ex.313
E-mail: sureshseebaiya@yahool.com
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