IAPRS & SIS, Vol.34, Part 7, *Resource and Environmental Monitoring", Hyderabad, India, 2002
places clothed with tropical dry deciduous forest. The average
yield of groundwater in this area is very poor i.e.< 50 lpm.
4. SUMMARY AND CONCLUSION
The study has revealed that satellite remote sensing technique is
most beneficial advanced scientific tool for
hydrogeomorphological studies and delineation of groundwater
prospect zones through which challenging task of groundwater
resources can be explored properly. Remote sensing inputs
coupled with hydrological data are important components for
the evaluation of suitable sites for groundwater development in
the Purna River basin of Parbhani district. Geologically, the
area is occupied by Deccan Basalts of late Cretaceous to early
Eocene period. As the primary porosity is limited to gas
cavities (vesicles), the groundwater in the area is therefore
concentrated the zone of secondary porosity developed in the
rocks due to fractures, joints and amount of weathering.
Hydrogeomorphologically, the Purna River basin is divided
into areas occupied by younger alluvial plain, older alluvial
plain, valley fill, pediments, highly dissected plateau
moderately dissected plateau and denudational hills. By
studying the hydrogeomorphological conditions of the basin, it
is possible to decipher the groundwater potentiality. It is
moderate to good, in most part of the basin while the alluvial
plains, the fractured zones in the dissected plateaus and the
valley fills are very good potential zones. The weathered
pediments with fractures and denudational hills are having
moderate to poor groundwater potentiality.
Dug wells are recommended in the alluvial units, valley fill
deposits and weathered pediments. The highly dissected and
moderately dissected plateaus are suitable for bore wells. Most
of the dug wells in the pediments and in dissected plateau dry
up during pre monsoon period hence bore wells and dug-cum
bore wells are recommended for these areas.
ACKNOWLEDGEMENT
The author is grateful to Dr. R.D. Kaplay, School of Earth
Sciences, Swami Ramanand Teerth Marathwada University,
Nanded, Maharashtra, India for his keen interest and consistent
guidance during the present work.
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