Effects of geological structures on groundwater flow and quality in hardrock regions of northern Tirunelveli district, southern India
Geological and structural influences on groundwater flow and quality were evaluated in the present study in the hardrock regions of Tirunelveli District, southern India. Groundwater is a major source of freshwater in this region to cater to the requirements of domestic and agricultural activity, as...
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| Veröffentlicht in: | Journal of Earth System Science 2015-03, Vol.124 (2), p.405-418 |
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| creator | Senthilkumar, M Arumugam, R Gnanasundar, D C Thambi, D S Kumar, E Sampath |
| description | Geological and structural influences on groundwater flow and quality were evaluated in the present study in the hardrock regions of Tirunelveli District, southern India. Groundwater is a major source of freshwater in this region to cater to the requirements of domestic and agricultural activity, as there are no surface water resources. Geologically, the area is characterized by charnockites and garnetiferous biotite gneiss. Groundwater in this region is found to occur in the weathered portion under unconfined condition and in fractured/fissured portions under unconfined to semi-confined condition. Existence of deep-seated fractures are minimal. Lineaments/dykes play a major role in the occurrence and movement of groundwater in the region. Lineaments/dykes of the study area can be broadly divided into two types: north–south and west–east oriented structures. Analysis and field observations revealed that the north–south dykes act as a barrier of groundwater while the west–east oriented structures behave as a carrier of groundwater. Both quality and quantity of groundwater is different on the upstream and downstream sides of the dyke. Hence, it is conclusive that the west–east oriented dykes in this region are highly potential and act as a conduit for groundwater movement from recharge areas to the discharge area. |
| doi_str_mv | 10.1007/s12040-015-0538-0 |
| format | Article |
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Groundwater is a major source of freshwater in this region to cater to the requirements of domestic and agricultural activity, as there are no surface water resources. Geologically, the area is characterized by charnockites and garnetiferous biotite gneiss. Groundwater in this region is found to occur in the weathered portion under unconfined condition and in fractured/fissured portions under unconfined to semi-confined condition. Existence of deep-seated fractures are minimal. Lineaments/dykes play a major role in the occurrence and movement of groundwater in the region. Lineaments/dykes of the study area can be broadly divided into two types: north–south and west–east oriented structures. Analysis and field observations revealed that the north–south dykes act as a barrier of groundwater while the west–east oriented structures behave as a carrier of groundwater. Both quality and quantity of groundwater is different on the upstream and downstream sides of the dyke. Hence, it is conclusive that the west–east oriented dykes in this region are highly potential and act as a conduit for groundwater movement from recharge areas to the discharge area.</description><identifier>ISSN: 0253-4126</identifier><identifier>EISSN: 0973-774X</identifier><identifier>DOI: 10.1007/s12040-015-0538-0</identifier><language>eng</language><publisher>India: Springer India</publisher><subject>Biotite ; Earth and Environmental Science ; Earth Sciences ; Fractures ; Freshwater ; Geological structures ; Geology ; Gneiss ; Groundwater ; Groundwater barriers ; Groundwater flow ; Groundwater quality ; Groundwater recharge ; Inland water environment ; Recharge areas ; Space Exploration and Astronautics ; Space Sciences (including Extraterrestrial Physics ; Surface water ; Surface water resources ; Water quality ; Water resources</subject><ispartof>Journal of Earth System Science, 2015-03, Vol.124 (2), p.405-418</ispartof><rights>Indian Academy of Sciences 2015</rights><rights>Indian Academy of Sciences 2015.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a415t-1312d8c593431af5738ebcdcf67c0962b60c2fc37414c713c52fccb2f1aa7f693</citedby><cites>FETCH-LOGICAL-a415t-1312d8c593431af5738ebcdcf67c0962b60c2fc37414c713c52fccb2f1aa7f693</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12040-015-0538-0$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12040-015-0538-0$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>315,781,785,27926,27927,41490,42559,51321</link.rule.ids></links><search><creatorcontrib>Senthilkumar, M</creatorcontrib><creatorcontrib>Arumugam, R</creatorcontrib><creatorcontrib>Gnanasundar, D</creatorcontrib><creatorcontrib>C Thambi, D S</creatorcontrib><creatorcontrib>Kumar, E Sampath</creatorcontrib><title>Effects of geological structures on groundwater flow and quality in hardrock regions of northern Tirunelveli district, southern India</title><title>Journal of Earth System Science</title><addtitle>J Earth Syst Sci</addtitle><description>Geological and structural influences on groundwater flow and quality were evaluated in the present study in the hardrock regions of Tirunelveli District, southern India. Groundwater is a major source of freshwater in this region to cater to the requirements of domestic and agricultural activity, as there are no surface water resources. Geologically, the area is characterized by charnockites and garnetiferous biotite gneiss. Groundwater in this region is found to occur in the weathered portion under unconfined condition and in fractured/fissured portions under unconfined to semi-confined condition. Existence of deep-seated fractures are minimal. Lineaments/dykes play a major role in the occurrence and movement of groundwater in the region. Lineaments/dykes of the study area can be broadly divided into two types: north–south and west–east oriented structures. Analysis and field observations revealed that the north–south dykes act as a barrier of groundwater while the west–east oriented structures behave as a carrier of groundwater. Both quality and quantity of groundwater is different on the upstream and downstream sides of the dyke. 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Groundwater is a major source of freshwater in this region to cater to the requirements of domestic and agricultural activity, as there are no surface water resources. Geologically, the area is characterized by charnockites and garnetiferous biotite gneiss. Groundwater in this region is found to occur in the weathered portion under unconfined condition and in fractured/fissured portions under unconfined to semi-confined condition. Existence of deep-seated fractures are minimal. Lineaments/dykes play a major role in the occurrence and movement of groundwater in the region. Lineaments/dykes of the study area can be broadly divided into two types: north–south and west–east oriented structures. Analysis and field observations revealed that the north–south dykes act as a barrier of groundwater while the west–east oriented structures behave as a carrier of groundwater. Both quality and quantity of groundwater is different on the upstream and downstream sides of the dyke. 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| source | Indian Academy of Sciences; SpringerNature Journals; EZB Electronic Journals Library |
| subjects | Biotite Earth and Environmental Science Earth Sciences Fractures Freshwater Geological structures Geology Gneiss Groundwater Groundwater barriers Groundwater flow Groundwater quality Groundwater recharge Inland water environment Recharge areas Space Exploration and Astronautics Space Sciences (including Extraterrestrial Physics Surface water Surface water resources Water quality Water resources |
| title | Effects of geological structures on groundwater flow and quality in hardrock regions of northern Tirunelveli district, southern India |
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