CSIR (Council of Scientific & Industrial Research) Earth Sciences Applied Geology-Hydrogeology Study Material (Page 3 of 19)
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Movement of Subsurface Water, Zone of Aeration (Vadose Water) , Zone of Saturation (Phreatic Water)
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Movement of Subsurface Water
- Subsurface water means the flow of water beneath the Earth՚s surface.
- Principal sources of natural recharge includes precipitation, Stream-flow, lakes and reservoirs, artificial recharge from excess irrigation, seepage from canals & sea water.
- Water within the ground moves downward through …
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Hydrogeology and Engineering Geology, Porosity, Porosity and Sorting
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Hydrogeology and Engineering Geology
- It is a measure of the voids/interstices in a rock.
- It is expressed in percentage.
- It is the ratio of volume of interstices to the total volume of the soil/rock.
- The formula for calculating porosity is
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