The rate of groundwater flow depends on properties of the rock and on the pressu
ID: 253327 • Letter: T
Question
The rate of groundwater flow depends on properties of the rock and on the pressure gradient that drives the flow EXPERIMENT 1 Analyze what happened when water was dropped on the rock specimens Fig. A1.1 1. In general, what effect do you think layers of fine-grained sedimentary rock like mudstone or shale are likely to have on the speed of groundwater movement or the volume of groundwater that can be stored? Why? 2. In general, what effect do you think layers of sandstone are likely to have on the speed of groundwater movement or the volume of groundwater that can be stored? Why?Explanation / Answer
1. Ground water is the after that is present beneath the alter table present in the intecised of the rocks or the void spaces. Water present in this zone is withdrawn for different uses. Though, the rate of flow of water depends on the different types of rocks or the different permeable materials present. It also depends on the pore spaces, connectivity as well as configuration of the strat present underground. The water infiltrates quickly if the soil is coarse grained. But in case of fine grained soil, the particles have lesser space in between the soil particles, which results in slower infiltration of water, thus reducing the speed of ground water movement. Though, fine particles drain slowly, these tend to hold the water in a much better manner as compared to soils having larger pore size. Hence, for a soil with fine granules, the water storage capacity will be more.
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