Significance of pCO2 values in determining carbonate chemistry in groundwater of Pondicherry region, India

The partial pressure of Carbon-Di-oxide plays a significant role in the water chemistry. It reflects thegeochemical process and relates to the saturation index (SI) of the Carbonate minerals. A total number of 98 samples were collected from layered sequential aquifers like Alluvium, Upper Cuddalore...

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Main Authors: Chidambaram, S., Prasanna, Mohan Viswanathan, Karmegam, U., Sinagaraja, C., Pethaperumal, S., Manivannan, R., Anandhan, P., Tirumalesh, K.
Format: Journal Article
Published: Frontiers of Earth Science, China 2011
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/49712
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author Chidambaram, S.
Prasanna, Mohan Viswanathan
Karmegam, U.
Sinagaraja, C.
Pethaperumal, S.
Manivannan, R.
Anandhan, P.
Tirumalesh, K.
author_facet Chidambaram, S.
Prasanna, Mohan Viswanathan
Karmegam, U.
Sinagaraja, C.
Pethaperumal, S.
Manivannan, R.
Anandhan, P.
Tirumalesh, K.
author_sort Chidambaram, S.
building Curtin Institutional Repository
collection Online Access
description The partial pressure of Carbon-Di-oxide plays a significant role in the water chemistry. It reflects thegeochemical process and relates to the saturation index (SI) of the Carbonate minerals. A total number of 98 samples were collected from layered sequential aquifers like Alluvium, Upper Cuddalore sandstone, Lower Cuddalore Sandstone and Cretaceous formations, during Pre-Monsoonand Post-Monsoon seasons. Chemical parameters of groundwater such as pH, EC, TDS, Na+, K+, Ca2+, Mg2+, Cl–, HCO–3 , SO2–4 , PO3–4 and H4SiO4 were determined. The study shows that an increase in the log pCO2 values during water-rock interaction which influences the processof mineral dissolution. Saturation index of the carbonate minerals like Calcite, Aragonite, Dolomite and Magnesite were derived and compared with the log pCO2 values. In both the seasons the decreasing log pCO2 increases the saturation index of most of the carbonate minerals studied. The saturation index of almost all carbonate minerals during both the seasons showed negative correlationirrespective of the formation. Log pCO2 also develops a negative correlation with pH in groundwater of the study area.
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publisher Frontiers of Earth Science, China
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spelling curtin-20.500.11937-497122017-09-19T08:09:51Z Significance of pCO2 values in determining carbonate chemistry in groundwater of Pondicherry region, India Chidambaram, S. Prasanna, Mohan Viswanathan Karmegam, U. Sinagaraja, C. Pethaperumal, S. Manivannan, R. Anandhan, P. Tirumalesh, K. saturation index(SI) geochemical modeling log pCO2 coastal aquifers hydrogeochemistry The partial pressure of Carbon-Di-oxide plays a significant role in the water chemistry. It reflects thegeochemical process and relates to the saturation index (SI) of the Carbonate minerals. A total number of 98 samples were collected from layered sequential aquifers like Alluvium, Upper Cuddalore sandstone, Lower Cuddalore Sandstone and Cretaceous formations, during Pre-Monsoonand Post-Monsoon seasons. Chemical parameters of groundwater such as pH, EC, TDS, Na+, K+, Ca2+, Mg2+, Cl–, HCO–3 , SO2–4 , PO3–4 and H4SiO4 were determined. The study shows that an increase in the log pCO2 values during water-rock interaction which influences the processof mineral dissolution. Saturation index of the carbonate minerals like Calcite, Aragonite, Dolomite and Magnesite were derived and compared with the log pCO2 values. In both the seasons the decreasing log pCO2 increases the saturation index of most of the carbonate minerals studied. The saturation index of almost all carbonate minerals during both the seasons showed negative correlationirrespective of the formation. Log pCO2 also develops a negative correlation with pH in groundwater of the study area. 2011 Journal Article http://hdl.handle.net/20.500.11937/49712 10.1007/s11707-011-0170-5 Frontiers of Earth Science, China restricted
spellingShingle saturation index(SI)
geochemical modeling
log pCO2
coastal aquifers
hydrogeochemistry
Chidambaram, S.
Prasanna, Mohan Viswanathan
Karmegam, U.
Sinagaraja, C.
Pethaperumal, S.
Manivannan, R.
Anandhan, P.
Tirumalesh, K.
Significance of pCO2 values in determining carbonate chemistry in groundwater of Pondicherry region, India
title Significance of pCO2 values in determining carbonate chemistry in groundwater of Pondicherry region, India
title_full Significance of pCO2 values in determining carbonate chemistry in groundwater of Pondicherry region, India
title_fullStr Significance of pCO2 values in determining carbonate chemistry in groundwater of Pondicherry region, India
title_full_unstemmed Significance of pCO2 values in determining carbonate chemistry in groundwater of Pondicherry region, India
title_short Significance of pCO2 values in determining carbonate chemistry in groundwater of Pondicherry region, India
title_sort significance of pco2 values in determining carbonate chemistry in groundwater of pondicherry region, india
topic saturation index(SI)
geochemical modeling
log pCO2
coastal aquifers
hydrogeochemistry
url http://hdl.handle.net/20.500.11937/49712