Sub-surface investigations on deep saline groundwater of Charnockite rock formation, Kalpakkam, India

被引：21
作者：
Gurumoorthy, C [1 ]
Sasidhar, P
Arumugham, V
Mathur, RK
机构：
[1] Atom Energy Regulatory Board, Safety Res Inst, Kalpakkam, Tamil Nadu, India
[2] Bhabha Atom Res Ctr, Nucl Recycle Grp, Repository Project Sect, Bombay 400085, Maharashtra, India
来源：
ENVIRONMENTAL MONITORING AND ASSESSMENT | 2004年 / 91卷 / 1-3期
关键词：
coastal aquifer; deep boreholes; geohydrological characteristics; salinity variation;
D O I：
10.1023/B:EMAS.0000009237.06427.2b
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Investigations on geohydrological aspects of coastal aquifer are important in order to understand the mechanism of ground water salinisation. The present study describes the salinity variations of ground water in deep boreholes drilled in Charnockite rock formation of Kalpakkam, on the eastern coast of India. Water samples collected up to 600m depth were analyzed for salinity variation. It is noticed that in one of the boreholes, (borehole K1), the salinity level is found to be 74 parts per thousand (ppt) at 400 m depth. Influence of surface saline water bodies viz., sea (26-28.5 ppt), backwaters (27-30 pt) and Buckingham canal (27-32 ppt) as the possible sources of recharge of fresh waters through joint and fracture system of the rock are discussed in this paper. Studies would assist in understanding the geohydrological characteristics of deep geological formation.
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页码：211 / 222
页数：12
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