Understanding recharge processes and solute sources of groundwater in karst settings of the Lesser Himalaya, India

Lesser Himalaya host a suite of extensive karstic rocks, which serve as productive aquifers meeting the water demand of millions of people in the region. This study uses major ions, stable water isotopes, and discharge data to understand the recharge processes and solute acquisition mechanisms for s...

Full description

Saved in:
Bibliographic Details
Published in:Arabian journal of geosciences 2023-03, Vol.16 (3), Article 186
Main Authors: Shah, Rouf A., Rai, Santosh K., Yadav, Jairam S.
Format: Article
Language:English
Subjects:
Aquifers
Calcite
Carbonates
Dolomite
Dolostone
Earth and Environmental Science
Earth science
Earth Sciences
Groundwater
Hydrology
Isotopes
Karst
Lithology
Meteoric water
Original Paper
Partial pressure
Preferential flow
Rain
Rain water
Rainfall
Recharge
Recharging
Sedimentary facies
Solutes
Spring (season)
Springs (elastic)
Sulfides
Sulphates
Sulphide minerals
Sulphides
Water demand
Water discharge
Water springs
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Lesser Himalaya host a suite of extensive karstic rocks, which serve as productive aquifers meeting the water demand of millions of people in the region. This study uses major ions, stable water isotopes, and discharge data to understand the recharge processes and solute acquisition mechanisms for some karst springs from the Lesser Himalayan sequence in the Doon Valley. The results indicate that karst springs are perennial and attain fluctuating discharge having preferential flow through a highly permeable medium. These springs are moderate-to-highly mineralized, with relatively higher partial pressure pCO 2 , and have the potential to scale. The calcite/dolomite oversaturation and Ca-Mg-HCO 3 facies reveal a preferential flow through carbonates; however, occurrences of Mg-HCO 3 -SO 4 facies result from sulphate/sulphide minerals dissolving in host lithology. These springs have varying isotopic characteristics with lower d -excess (
ISSN:1866-7511
1866-7538
DOI:10.1007/s12517-023-11274-8