By B.B.S. Singhal †, R.P. Gupta
Hydrogeology is a topical and growing to be topic because the earth's water assets turn into scarcer and extra weak. greater than 1/2 the outside sector of continents is roofed with demanding rocks of low permiability.
This booklet offers comprehensively with the basic rules for figuring out the hydrogeological features of rocks, in addition to exploration recommendations and evaluate. It additionally offers extensive dialogue on structural mapping, distant sensing, geophysical exploration, GIS, groundwater stream modelling and contaminant shipping, box hydraulic trying out together with tracer checks, groundwater caliber, geothermal reservoirs, controlled aquifer recharge, and assets review and management.
Hydrogeological points of assorted lithology teams, together with crystalline rocks, volcanic rocks, carbonate rocks and clastic formations were handled individually, utilizing and discussing examples from around the globe. will probably be a useful textual content publication cum reference resource for postgraduate scholars, researchers, exploration scientists and engineers engaged within the box of groundwater improvement in fractured rocks.
Applied Hydrogeology of Fractured Rocks - moment variation is punctiliously revised and prolonged with a brand new bankruptcy, up-to-date sections, many new examples, and elevated and up to date references.
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Hydrogeology is a topical and growing to be topic because the earth's water assets turn into scarcer and extra weak. greater than half the outside region of continents is roofed with demanding rocks of low permiability. This e-book offers comprehensively with the basic rules for realizing the hydrogeological features of rocks, in addition to exploration suggestions and review.
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Extra resources for Applied Hydrogeology of Fractured Rocks
1 Landfarms Landform is an end product of natural weathering . It depends on three main factors: (a) present and past climatic conditions, (b) rock types and their structural features, and (c) the time span involved in weathering. Genetically, the landforms are divided into rwo groups: erosional landforms, and depositional landforms. Erosional landforms are typically associated with the resistant hard rock terrains. They comprise: (a) residual hills, (b) 38 inselbergs, (c) pediments, (d) buried pediments with weathered basements , and (e) valley fills.
For geothermal studies, geothermal resource maps are prepared showing temperature and pressure distribution of a hydrogeological unit wh ich are of practical importance for development of geothermal power. In earlier years, different workers and organizations used differing legends and colour codes to depict various groundwater features. This created difficulties in proper interpretation, comparison and compilation of data. , 1985). , 1985; Verma and Jolly, 1992; Struckmeier, 1993). One of the earliest attempts to prepare a hydrogeological map of India was made by Taylor (1959).
External drainage is where the surface drainage network is seen to be weil developed . Drainage channelways are characterized by the typical serpentine-sinuous shape and pattern. Their manifestation depends upon dimensions of the channel, scale of study and also on physical conditions of the channel, which may change from season to season, viz. due to flooding, drought, change in sediment load and vegetation cover. Drainage pattern is the spatial arrangement of streams and is, in general, very characteristic of rock structure and lithology.