Department
of Earth Science |
Northeastern
Illinois University
INTRODUCTION
TO EARTH SCIENCE
ESCI 121
Section 05
Fall 2008
Dr. Sanders
Daily
Objectives #4 (September 4, 2008)
A few geologic maps:
Illinois
bedrock map
Illinois
Quaternary map
Missouri
By the end of today's class, you should be able to do the following:
w
Review the
descriptions and density
measurements you made for the four rocks near the end of last week's class. Tell
what patterns, if any, you see. In what ways are the rocks similar to each
other? In what ways are they different? Note: we
don't yet know what these rock types are, but the differences you observed here
will become important soon--so hang on to this information!
Putting it all together:
Earth's Internal Structure and Geotectonics.
w
Draw a diagram illustrating the
internal structure of the earth. Label and describe the major layers based
on density and state (e.g. liquid vs. solid).
Label and describe the major layers based on deformation characteristics.
w
Explain how the characteristics listed
above affect the behavior of lithospheric plates, particularly at plate
boundaries (edges).
w
Define the terms lithosphere and
asthenosphere.
w
List the characteristics of the rocks
that are the predominant components of the continents vs. the ocean floor.
w
List the three major types of plate
boundaries. For convergent boundaries, list the three possible
combinations of converging plates.
w
Describe the geologic features that
would be found at each of the plate boundaries listed above, and explain how
each feature develops.
w
Tell what is expected of you in the
homework assignments, "The Key to Minerals" and "The Key to Rocks".
© 2008 Laura L. Sanders. Last updated September 3, 2008.