Solute chemistry and groundwater arsenic enrichment in southern part of Brahmaputra River Basin, India, adjacent to Indo-Burmese ranges
© 2016 Taylor & Francis Group, London. The present study examines the groundwater chemistry, hydrogeochemical evolution and Arsenic (As) enrichment in shallow aquifers in the southern Brahmaputra river basin situated close to Naga-thrust belt. The major-ion composition dominated by a Na?Ca?HCO...
| Main Authors: | , , , , |
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| Format: | Conference Paper |
| Published: |
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/66819 |
| _version_ | 1848761401232850944 |
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| author | Verma, S. Mukherjee, Abhijit Mahanta, C. Choudhury, R. Bhattacharya, P. |
| author_facet | Verma, S. Mukherjee, Abhijit Mahanta, C. Choudhury, R. Bhattacharya, P. |
| author_sort | Verma, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2016 Taylor & Francis Group, London. The present study examines the groundwater chemistry, hydrogeochemical evolution and Arsenic (As) enrichment in shallow aquifers in the southern Brahmaputra river basin situated close to Naga-thrust belt. The major-ion composition dominated by a Na?Ca?HCO3 and Ca?Na?HCO3 hydro-chemical facies. Groundwater composition influenced by silicates weathering in S-region of Brahmaputra basin aquifers. The aquifers of S-region are severely contaminated with As (max 0.45 mg/L), nearly 92% collected groundwater sample are enriched with As. As show poor and negative correlation with various redox—sensitive solutes. It suggests that not a single process is controlling factor, although multiple biogeochemical mechanisms might influence As liberation and fate in groundwater of S-region. The geologic explanation for high arsenic in the southern region of Brahmaputra basin (upper Assam) is probably the crustal recycling of arsenic as an incompatible element during tectonic activity. |
| first_indexed | 2025-11-14T10:31:05Z |
| format | Conference Paper |
| id | curtin-20.500.11937-66819 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:31:05Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-668192018-05-18T07:56:16Z Solute chemistry and groundwater arsenic enrichment in southern part of Brahmaputra River Basin, India, adjacent to Indo-Burmese ranges Verma, S. Mukherjee, Abhijit Mahanta, C. Choudhury, R. Bhattacharya, P. © 2016 Taylor & Francis Group, London. The present study examines the groundwater chemistry, hydrogeochemical evolution and Arsenic (As) enrichment in shallow aquifers in the southern Brahmaputra river basin situated close to Naga-thrust belt. The major-ion composition dominated by a Na?Ca?HCO3 and Ca?Na?HCO3 hydro-chemical facies. Groundwater composition influenced by silicates weathering in S-region of Brahmaputra basin aquifers. The aquifers of S-region are severely contaminated with As (max 0.45 mg/L), nearly 92% collected groundwater sample are enriched with As. As show poor and negative correlation with various redox—sensitive solutes. It suggests that not a single process is controlling factor, although multiple biogeochemical mechanisms might influence As liberation and fate in groundwater of S-region. The geologic explanation for high arsenic in the southern region of Brahmaputra basin (upper Assam) is probably the crustal recycling of arsenic as an incompatible element during tectonic activity. 2016 Conference Paper http://hdl.handle.net/20.500.11937/66819 restricted |
| spellingShingle | Verma, S. Mukherjee, Abhijit Mahanta, C. Choudhury, R. Bhattacharya, P. Solute chemistry and groundwater arsenic enrichment in southern part of Brahmaputra River Basin, India, adjacent to Indo-Burmese ranges |
| title | Solute chemistry and groundwater arsenic enrichment in southern part of Brahmaputra River Basin, India, adjacent to Indo-Burmese ranges |
| title_full | Solute chemistry and groundwater arsenic enrichment in southern part of Brahmaputra River Basin, India, adjacent to Indo-Burmese ranges |
| title_fullStr | Solute chemistry and groundwater arsenic enrichment in southern part of Brahmaputra River Basin, India, adjacent to Indo-Burmese ranges |
| title_full_unstemmed | Solute chemistry and groundwater arsenic enrichment in southern part of Brahmaputra River Basin, India, adjacent to Indo-Burmese ranges |
| title_short | Solute chemistry and groundwater arsenic enrichment in southern part of Brahmaputra River Basin, India, adjacent to Indo-Burmese ranges |
| title_sort | solute chemistry and groundwater arsenic enrichment in southern part of brahmaputra river basin, india, adjacent to indo-burmese ranges |
| url | http://hdl.handle.net/20.500.11937/66819 |