Objectives 1
Department of Earth Science |Northeastern Illinois University

PRINCIPLES OF HYDROGEOLOGY
ESCI 337
Spring, 2009

Daily Objectives #12 (February 24, 2009)                                        Dr. Sanders

By the end of today's class, you should be able to do the following:

Hydraulic Properties of Rocks and Sediment


v  Review: Define the terms aquifer and aquitard.

v  List rocks and sediments that commonly are used as aquifers, and those that commonly form aquitards.

v  Describe the effect of fracturing on the hydraulic conductivity of a rock or sediment.

v  Explain what is meant by hydrostratigraphy, and tell how it differs from lithostratigraphy.

What makes water flow?

w Draw a water table map for an area of low relief with a stream running (west to east) through the center.

w Draw a water table map for an area of low relief with an oval-shaped lake in the center.

w Using your water table contour map from the end of Chapter 3 (which we worked on last time), draw flow lines to indicate the direction of ground water flow throughout the area.

w
State the rules of contours with regard to their touching, crossing, or ending; explain how to choose and use appropriate contour intervals; and tell how to determine where to stop drawing contours near the edges of a map.

w
List the three kinds of lines that one draws when creating a flow net, and explain the purpose/meaning of each kind of line.

w For each kind of line in a flow net, tell how it relates to the other kinds of lines (e.g. perpendicular, parallel, oblique).

Department of Earth Science | Northeastern Illinois University

Copyright 2009 Laura L. Sanders.  Last updated February 26, 2009.