Determination of groundwater quality and quantity in
crystalline basement terrains is a complex
problem. More than half of the surface area of the
continents is covered with hard rocks. In hard rock
areas, groundwater is found in cracks and fractures of
the local rocks. Hardrocks can typically acquire
water tolerable to good quality. It is a hard task to
identify suitable aquifers in a crystalline landscape.
In Tindivanam Taluk, Tamil Nadu, groundwater is the
major source of water for the local inhabitants.
The Taluk consists of the crystalline basement and the
groundwater development through dug and
bore wells. This study focuses on the combination of
remote sensing and GIS to produce
comprehensive groundwater quality zones for the study
area. The water quality attribute, such as
TDS, TH, CR, and Cl, was constructed as point
attributes (location wells) for contour construction.
The attributes selected for drinking (TDS), for
domestic (TH), for industrial (CR) and for agricultural /
drinking (CL) purposes. TDS and TH integration was accomplished
command union I and combined
CR and Cl to generate union II maps. The union III was
created by the integration of union I and union
II, which is the final output map of the overlay
analysis. From the final integrated map, it is inferred
that freshwater zone exists in the north and south
parts, tolerable quality water covers in major parts
and the low-quality water zone exists in limited areal
extent in the study area.
Author(s) Details
Dr. A. Karthikeyan
Department of Geology, Thiru
A.G. Govt. Arts & Science College, Tindivanam-604001, India.
Dr. G. R. Senthilkumar
Department of Earth Sciences, Annamalai
University, Annamalai Nagar-608002, India.
View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/247
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