A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Adyalkar, P. G.
- Karstic Limestones in Parts of Raipur District, Madhya Pradesh and their Groundwater Possibilities
Authors
1 Geological Survey of India, Nagpur, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 13, No 4 (1972), Pagination: 382-387Abstract
The southernmost parts of the Raipur district, covering about 5,600 sq km of area between the north latitudes 20°30' and 21°30' and the east longitudes 81°30' and 82°15' and forming part of the extensive saucer-shaped Raipur basin of the Chhattisgarh region of Madhya Pradesh, has been studied by systematic geohydrological work.
The limestones of the area have high secondary permeability and are observed to be rich in groundwater potential. The large vertical thickness and considerable lateral extension of carbonate rock aquifers indicate scope for development of groundwater.
- Hydrogeology of the Jabalpur Sandstone of Jabalpur District, Madhya Pradesh
Authors
1 Geological Survey of India, Nagpur, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 16, No 1 (1975), Pagination: 86-89Abstract
No Abstract.- On the Occurrence of Phosphatic Limestone in Chattisgarh Basin of Eastern Madhya Pradesh
Authors
1 Central Groundwater Board, Nagpur, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 16, No 4 (1975), Pagination: 494-495Abstract
No Abstract.- Dolomitisation in the Northern Part of the Chhattisgarh Basin, Bilaspur District, Madhya Pradesh
Authors
1 Central Groundwater Board, Nagpur, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 19, No 2 (1978), Pagination: 69-73Abstract
Dolomite, occurring in the shale-limestone sequence of the Raipur Stage of the Precambrian sedimentaries of the Raipur Series in the northern part of the Chhattisgarh basin, was formed by dolomitisation of the calcium carbonate sediments in two phases. The dolomitised sediments were deposited in a linear, shallow, near-shore, uneven basin, which was divided into (i) closed or partly connected, shallow, sub-basin and (ii) isolated, comparatively deeper and 'starved' sub-basin. Higher values of pH, PCO2, Mg/Ca ratio and CO3 ion concentration prevailing in the closed, shallow sub-basin gave rise to an early replacement forming extensive dolomite bodies. The second phase, responsible for veins and smaller irregular dolomite bodies was effected by the Mg-ions released during the recrystallisation of calcite and labile material of the limestones and their subsequent diffusion by the squeezed out connate waters.
Solution features developed during dolomitisation and subsequently by surface and groundwaters have induced secondary porosity in the dolomite. These are therefore significant for groundwater exploration in the area.
- Hydrodynamic Method of Assessing Groundwater Recharge by Precipitation in Deccan Trap Terrain-A Case Study
Authors
1 Central Groundwater Board, Nagpur, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 20, No 3 (1979), Pagination: 134-137Abstract
Amongst the number of methods available for calculating groundwater recharge, the, hydrodynamic method is reliable as it takes into consideration the changes in water level, which is a true picture of groundwater regime of the area.Groundwater recharge is first calculated by multiplying the specific yield obtained by pump test with the actual rise of water level in the well for a given period. From this daily recharge is calculated, which is expressed as a percentage of rainfall.