Mechanism of Fluoride and Nitrate Enrichment in Hard-Rock Aquifers in Gooty Mandal, South India

2017 ◽  
Vol 4 (3) ◽  
pp. 625-644 ◽  
Author(s):  
P. D. Sreedevi ◽  
Shakeel Ahmed ◽  
D. V. Reddy
Keyword(s):  
South India ◽  
Hard Rock ◽  
Hard Rock Aquifers

A study on the status of fluoride ion in groundwater of coastal hard rock aquifers of south India

2012 ◽  
Vol 6 (11) ◽  
pp. 4167-4177 ◽  
Author(s):  
C. Singaraja ◽  
S. Chidambaram ◽  
P. Anandhan ◽  
M. V. Prasanna ◽  
C. Thivya ◽  
...  
Keyword(s):  
South India ◽  
Hard Rock ◽  
Fluoride Ion ◽  
The Status ◽  
Hard Rock Aquifers

Geochemical evolution of groundwater in hard-rock aquifers of South India using statistical and modelling techniques

2020 ◽  
Vol 65 (6) ◽  
pp. 951-968 ◽  
Author(s):  
Annadasankar Roy ◽  
Tirumalesh Keesari ◽  
Hemant Mohokar ◽  
Diksha Pant ◽  
Uday Kumar Sinha ◽  
...  
Keyword(s):  
South India ◽  
Hard Rock ◽  
Geochemical Evolution ◽  
Hard Rock Aquifers ◽  
Modelling Techniques

Occurrence of high uranium and radon in hard rock aquifers of South India – Evaluating the temporal and spatial trends

2015 ◽  
Vol 1 (1-2) ◽  
pp. 68-77 ◽  
Author(s):  
C. Thivya ◽  
S. Chidambaram ◽  
R. Thilagavathi ◽  
Tirumalesh Keesari ◽  
M.S. Rao ◽  
...  
Keyword(s):  
South India ◽  
Hard Rock ◽  
Spatial Trends ◽  
Hard Rock Aquifers ◽  
Temporal And Spatial ◽  
Temporal And Spatial Trends

Identification of the geochemical processes in groundwater by factor analysis in hard rock aquifers of Madurai District, South India

2013 ◽  
Vol 7 (9) ◽  
pp. 3767-3777 ◽  
Author(s):  
C. Thivya ◽  
S. Chidambaram ◽  
R. Thilagavathi ◽  
M. V. Prasanna ◽  
C. Singaraja ◽  
...  
Keyword(s):  
Factor Analysis ◽  
South India ◽  
Hard Rock ◽  
Geochemical Processes ◽  
Hard Rock Aquifers

scholarly journals Estimation of recharge in mountain hard-rock aquifers based on discrete spring discharge monitoring during base-flow recession

2021 ◽  
Author(s):  
Stefano Segadelli ◽  
Maria Filippini ◽  
Anna Monti ◽  
Fulvio Celico ◽  
Alessandro Gargini
Keyword(s):  
Hard Rock ◽  
Monitoring Program ◽  
Base Flow ◽  
Low Flow ◽  
Reliable Estimate ◽  
Spring Discharge ◽  
Aquifer Recharge ◽  
Clear Cut ◽  
Groundwater Circulation ◽  
Hard Rock Aquifers

AbstractEstimation of aquifer recharge is key to effective groundwater management and protection. In mountain hard-rock aquifers, the average annual discharge of a spring generally reflects the vertical aquifer recharge over the spring catchment. However, the determination of average annual spring discharge requires expensive and challenging field monitoring. A power-law correlation was previously reported in the literature that would allow quantification of the average annual spring discharge starting from only a few discharge measurements in the low-flow season, in a dry summer climate. The correlation is based upon the Maillet model and was previously derived by a 10-year monitoring program of discharge from springs and streams in hard-rock aquifers composed of siliciclastic and calcareous turbidites that did not have well defined hydrogeologic boundaries. In this research, the same correlation was applied to two ophiolitic (peridotitic) hard-rock aquifers in the Northern Apennines (Northern Italy) with well-defined hydrogeologic boundaries and base-outflow springs. The correlation provided a reliable estimate of the average annual spring discharge thus confirming its effectiveness regardless of bedrock lithology. In the two aquifers studied, the measurable annual outputs (i.e. sum of average annual spring discharges) could be assumed equal to the annual inputs (i.e. vertical recharge) based on the clear-cut aquifer boundaries and a quick groundwater circulation inferable from spring water parameters. Thus, in such setting, the aforementioned correlation also provided an estimate of the annual aquifer recharge allowing the assessment of coefficients of infiltration (i.e. ratio between aquifer recharge and total precipitation) ranging between 10 and 20%.

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