Authors :
Badrinarayanan T.S; S. Sundaramoorthy; Dr. N. Jawahar Raj
Volume/Issue :
Volume 7 - 2022, Issue 9 - September
Google Scholar :
https://bit.ly/3IIfn9N
Scribd :
https://bit.ly/3fyPksv
DOI :
https://doi.org/10.5281/zenodo.7129354
Abstract :
Water is one of the most basic components of
human existence and socio-economic development, but
its availability is usually taken for granted. Groundwater
is a key natural resource in many parts of the world.
Equally groundwater is important in specific climate and
hydrological contexts such as arid and semi-arid areas,
where it is commonly the only safe source of water.
Groundwater occurrence in crystalline rock terrains is
highly influenced by geological structures. These
geological structures, unless mapped with precision,
groundwater exploration may end up with low yielding
or dry boreholes. This study aims to evaluate geologic
and structural influences on groundwater. The present
research is important for understanding the factors
influencing the distribution, flow, and yield of
groundwater. The area of investigation confines to the
crystalline rock terrain of Gudimangalam block of
Udumalpet taluk in Tiruppur district, Tamilnadu, which
being a drought prone area. The total areal extent is
about 100sqkms and aquifer mapping project for both
irrigational and drinking water needs has been carried
out. Systematic geological, hydrogeological investigations
followed by surface geoelectric exploration by 1D VES
[vertical electrical sounding] were done to delineate the
fracture/ joints/lineaments of the subsurface. Totally 51
bore wells have been drilled. Iso apparent resistivity
maps and bore well yield contour maps / aquifer
potential mapshave been generated to study lineament
pattern of the area. The Iso apparent resistivity map,
electric log of a deep borewell and the aquifer yield
contour maps throw light on the tectonic history
revealing that this zone is tectonically disturbed with
faulting, shearing and shattering of the subsurface
lithology. The high potential aquifers confine to the
lineament-Poolavadi-V.Vallakondapuram lineament and
from these research it may be concluded that the
occurrence, distribution and movement of groundwater
are influenced and impacted by geological structures
which have a direct control. The study clearly shows that
there are three sets of lineament, the main being the one
with north east-south west trend.
Keywords :
Aquifer mapping; 1D VES; Iso apparent resistivity map; electrolog; lineament.
Water is one of the most basic components of
human existence and socio-economic development, but
its availability is usually taken for granted. Groundwater
is a key natural resource in many parts of the world.
Equally groundwater is important in specific climate and
hydrological contexts such as arid and semi-arid areas,
where it is commonly the only safe source of water.
Groundwater occurrence in crystalline rock terrains is
highly influenced by geological structures. These
geological structures, unless mapped with precision,
groundwater exploration may end up with low yielding
or dry boreholes. This study aims to evaluate geologic
and structural influences on groundwater. The present
research is important for understanding the factors
influencing the distribution, flow, and yield of
groundwater. The area of investigation confines to the
crystalline rock terrain of Gudimangalam block of
Udumalpet taluk in Tiruppur district, Tamilnadu, which
being a drought prone area. The total areal extent is
about 100sqkms and aquifer mapping project for both
irrigational and drinking water needs has been carried
out. Systematic geological, hydrogeological investigations
followed by surface geoelectric exploration by 1D VES
[vertical electrical sounding] were done to delineate the
fracture/ joints/lineaments of the subsurface. Totally 51
bore wells have been drilled. Iso apparent resistivity
maps and bore well yield contour maps / aquifer
potential mapshave been generated to study lineament
pattern of the area. The Iso apparent resistivity map,
electric log of a deep borewell and the aquifer yield
contour maps throw light on the tectonic history
revealing that this zone is tectonically disturbed with
faulting, shearing and shattering of the subsurface
lithology. The high potential aquifers confine to the
lineament-Poolavadi-V.Vallakondapuram lineament and
from these research it may be concluded that the
occurrence, distribution and movement of groundwater
are influenced and impacted by geological structures
which have a direct control. The study clearly shows that
there are three sets of lineament, the main being the one
with north east-south west trend.
Keywords :
Aquifer mapping; 1D VES; Iso apparent resistivity map; electrolog; lineament.
