Abstract:
Turkana South Sub-County falls in the arid and semi-arid lands of Kenya,
which are characterized temperatures of 20˚C to 41˚C with an average of
30.5˚C and precipitation in the range of 52 mm to 480 mm per year. The area
has limited availability of water resources. The area has a land surface of
18,000 km
2
and lies between Longitudes 35˚10'00" and 36˚45'00" East and
between Latitudes 1˚0'00" and 3˚0'00" North. The study area faces immense
difficulties in trying to meet its water requirements for her rapidly increasing
populace, livestock needs and other developmental programmes. Surface water
in
the
area
is
becoming
unobtainable,
thus
the
choice
of
groundwater
exploitation.
Indeed
with
the
snowballing
demand
necessitated
by
energy,
agri-
cultural and livestock production needs in this area, there is an appeal into
investigation for groundwater in this greatly remote and extensive area. Thus,
the success in the exploration, development and management of groundwater
in such a large area calls for such methods that can easily be used to zero
down to exploitable targets. Given the expansiveness of the study area, remote
sensing (RS) has been used to map lineaments which in turn have been used
to deduce faulting affecting the geology of the area. The mapping by RS
helped in identifying weathered zones, the fracture systems and fault zones
sign of deeper weathered zones which are interpreted to be potential areas
since mainly water is stored within fractures and the weathered zones in subterranean
and
in
hard
rocks.
In
the
field
topographic
expressions
of
faults
and
fractures
which
include;
joints,
fractures,
scarps,
river
channels
and
slope
