A well from which groundwater flows freely without

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An Introduction to Physical Science
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Chapter 23 / Exercise 6
An Introduction to Physical Science
Shipman/Wilson
Expert Verified
14.A well from which groundwater flows freely without being pumped is called a(n)
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An Introduction to Physical Science
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Chapter 23 / Exercise 6
An Introduction to Physical Science
Shipman/Wilson
Expert Verified
15. (a)___Geysers_____________________ are intermittent hot springs or fountains inwhich columns of water are ejected with great force. When water in such featurescontains dissolved silica, then deposits of (b)___geyserite or siliceous sinter_____________________ form around them. When such features containdissolved calcium carbonate, then (d)_____calcareous tufa or travertine___________________or (e)________________________ is deposited.
16. Groundwater dissolution of limestone may produce spectacular cavities in the bedrockcalled __caverns or caves______________________.17. Dripstone features are collectively called (a)___speleothems_____________________. Theicicle-like dripstone formations are called (b)___stalactites_____________________. Dripstone
18. Landscapes that have been shaped chiefly by the dissolving power of groundwater aresaid to exhibit ___karst topography_____________________.19. Depressions caused by solution of bedrock and collapse of caverns arecalled (a)__sinkholes or sinks______________________ or (b)________________________.Applying What You Have Learned1. What is Darcy's law?
flow will increase as the slope of the water table increases._____________________________________________________________________________________________________________________________________________________________________________________________________________2. Explain in quantitative terms how the hydraulic gradient is obtained.____It is obtained by dividing the vertical difference between the recharge and dischargepoints (head) by the length of the flow between those points.______________________________________________________________________________________________________________________________________________________________________________________________________________3. What is a cone of depression?______It is a conical depression in the water table caused by drawdown around a well.____________________________________________________________________________________________________________________________________________________________________________________________________________24. On the cutaway sides of the illustration below, areas shaded dark represent the zone ofaeration, and areas that are lightly shaded represent the zone of saturation. All rocktypes are aquifers except for the labeled aquitard. On the blanks provided, fill in thename of the labeled features.a. water tableb. perched water table.5. On the blank provided beside each cross section below, describe what type of stream is
represented. Arrows indicate direction of groundwater flow.a. influent stream (gaining)b. effluent stream (losing).3

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