Question 4 In an aquifer there are three horizontal layers: A, B and C on top of each other: A: the saturated horizontal hydraulic conductivity of layer A is 20 m/d, the thickness of layer A is 20 m B: the saturated horizontal hydraulic conductivity of layer B is 40 m/d, the thickness) of layer 8 is 30 m C: the saturated horizontal hydraulic conductivity of layer C is 50 m/d, the thickness of the layer C is 10 m The hydraulic gradient in the aquifer for flow parallel to layering is 0.001. Compute: a) The flow rate (Q) per unit width (i.e. width = 1 m) through each of the three layers. b) the average horizontal hydraulic conductivity of the aquifer. c) the aquifer has a constant porosity of 0.3 everywhere. In which layer is the average linear groundwater velocity of water greatest? How long does it take for a water molecule (on average) to ravel a distance of 1000 meters in this layer?

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
icon
Related questions
Question
Question 4
In an aquifer there are three horizontal layers: A, B and C on top of each other:
A: the saturated horizontal hydraulic conductivity of layer A is 20 m/d, the thickness of layer A is 20 m
B: the saturated horizontal hydraulic conductivity of layer B is 40 m/d, the thickness) of layer B is 30 m
C: the saturated horizontal hydraulic conductivity of layer C is 50 m/d, the thickness of the layer C is 10 m
The hydraulic gradient in the aquifer for flow parallel to layering is 0.001.
Compute:
a) The flow rate (Q) per unit width (i.e. width = 1 m) through each of the three layers.
b) the average horizontal hydraulic conductivity of the aquifer.
c) the aquifer has a constant porosity of 0.3 everywhere. In which layer is the average linear
groundwater velocity of water greatest? How long does it take for a water molecule (on average) to
travel a distance of 1000 meters in this layer?
Transcribed Image Text:Question 4 In an aquifer there are three horizontal layers: A, B and C on top of each other: A: the saturated horizontal hydraulic conductivity of layer A is 20 m/d, the thickness of layer A is 20 m B: the saturated horizontal hydraulic conductivity of layer B is 40 m/d, the thickness) of layer B is 30 m C: the saturated horizontal hydraulic conductivity of layer C is 50 m/d, the thickness of the layer C is 10 m The hydraulic gradient in the aquifer for flow parallel to layering is 0.001. Compute: a) The flow rate (Q) per unit width (i.e. width = 1 m) through each of the three layers. b) the average horizontal hydraulic conductivity of the aquifer. c) the aquifer has a constant porosity of 0.3 everywhere. In which layer is the average linear groundwater velocity of water greatest? How long does it take for a water molecule (on average) to travel a distance of 1000 meters in this layer?
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Applications and Investigations in Earth Science …
Applications and Investigations in Earth Science …
Earth Science
ISBN:
9780134746241
Author:
Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:
PEARSON
Exercises for Weather & Climate (9th Edition)
Exercises for Weather & Climate (9th Edition)
Earth Science
ISBN:
9780134041360
Author:
Greg Carbone
Publisher:
PEARSON
Environmental Science
Environmental Science
Earth Science
ISBN:
9781260153125
Author:
William P Cunningham Prof., Mary Ann Cunningham Professor
Publisher:
McGraw-Hill Education
Earth Science (15th Edition)
Earth Science (15th Edition)
Earth Science
ISBN:
9780134543536
Author:
Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:
PEARSON
Environmental Science (MindTap Course List)
Environmental Science (MindTap Course List)
Earth Science
ISBN:
9781337569613
Author:
G. Tyler Miller, Scott Spoolman
Publisher:
Cengage Learning
Physical Geology
Physical Geology
Earth Science
ISBN:
9781259916823
Author:
Plummer, Charles C., CARLSON, Diane H., Hammersley, Lisa
Publisher:
Mcgraw-hill Education,