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Hossain, D.
- Hydrogeological Investigations of the Eastern Part of Dhaka City Using Geophysical Well Logging
Abstract Views :161 |
PDF Views:2
Authors
D. Hossain
1,
R. K. Majumder
2
Affiliations
1 Department of Geological Sciences, Jahangirnagar University, Savar, Dhaka-1342, BD
2 Grant Geophysical Inc., Party No. 432, Chittagong, BD
1 Department of Geological Sciences, Jahangirnagar University, Savar, Dhaka-1342, BD
2 Grant Geophysical Inc., Party No. 432, Chittagong, BD
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 56, No 2 (2000), Pagination: 161-168Abstract
The available geophysical well logs from the eastern part of Dhaka City have been interpreted to ascertain aquifer properties and to infer groundwater quality. From the interpretation of geophysical logs and study of the borelogs, the subsurface materials of the area could be divided into three litho-units; the upper and lower clay units, and the middle sand unit, i.e., the aquifer. These units appear to be characterized by contrasting physical properties and in particular, the resistivity. The anisotropy in electrical resistivity of the layered formation has also been examined. While the clay units are practically isotropic, the sand unit seems to be anisotropic and that may be principally related to variation in lithology. The percentage volume of shale, porosity, specific yield, and specific retention of the aquifer have been evaluated. The water quality parameters reveal complete potability of the groundwater.Keywords
Hydrogeology, Groundwater, Geophysical Well Logs, Coefficient of Anisotropy, Aquifer Parameters, Dhaka City, Bangladesh.- On the Application of Common-Depth-Point Shooting in the Surma Basin, Bangladesh: A Case Study of the Rashidpur Structure
Abstract Views :196 |
PDF Views:2
Authors
Affiliations
1 Department of Geological Sciences, Jahangirnagar Univerhity, Savar, Dhaka, BD
1 Department of Geological Sciences, Jahangirnagar Univerhity, Savar, Dhaka, BD
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 55, No 2 (2000), Pagination: 149-156Abstract
An analysis of the available seismic data from the Rashidpur anticlinal structure in the Surma basin, Bangladesh, shows that there are only a few interfaces that may generate significant reflections (medium category reflectors) down to the depth of four km, while the rest correspond to the category of weak reflectors. The relative amplitudes of different types of multiple events reveal that only 1st order surface multiples and peg leg multiples may possess amplitudes that can be detected on a seismogram. It has been concluded that the application of common-depth-point (CDP) shooting in the Surma basin should be directed towards not only enhancing signal-to-noise ratio (SNR), but also obtaining precise seismic velocity information.Keywords
Solid Earth Geophysics, Reflection Seismology, Rashidpur Structure, Common-Depth-Point Shooting, Stacking Chart, Surma Basin, Bangladesh.- Hydrogeological Investigations of the Eastern Part of Dhaka City Using Geophysical well Logging
Abstract Views :190 |
PDF Views:129
Authors
Affiliations
1 Geohouse, Plot No.32/B, Road no.2, Adarsh Nagar, Nagole, Hyderabad - 500 068, IN
1 Geohouse, Plot No.32/B, Road no.2, Adarsh Nagar, Nagole, Hyderabad - 500 068, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 57, No 5 (2001), Pagination: 472-474Abstract
No Abstract.- Interpretation of Seismic Data of the Kailastila Structure in the Surma Basin, Bangladesh
Abstract Views :189 |
PDF Views:2
Authors
Affiliations
1 Department of Geological Sciences, Jahangirnagar University, Savar, Dhaka- 1342, BD
1 Department of Geological Sciences, Jahangirnagar University, Savar, Dhaka- 1342, BD