Department
of Earth Science |
Northeastern
Illinois University
INTRODUCTION TO EARTH SCIENCE
ESCI 121
Section 06
Fall 2008
Department
of Earth Science |Northeastern
Illinois University
Daily
Objectives #6 (September 11, 2008)
By the end of today's class, you should be able to do the following:
w
Describe how igneous,
sedimentary, and metamorphic rocks form.
w
For igneous rocks, explain the
difference between volcanic (extrusive) and plutonic
(intrusive) rocks.
w
For igneous rocks, explain the
difference between mafic and felsic rocks.
w
For sedimentary rocks, explain the
difference between chemical and clastic rocks, and
tell how biochemical rocks fit into the picture.
w
For metamorphic rocks, explain the
difference between foliated and non-foliated rocks.
w
Explain the difference between minerals and
rocks.
w
Explain how to use one of the
mineral identification keys that are available online or distributed in
the class. Tell what the important diagnostic properties of
minerals are that one must investigate to use the key.
MINERAL KEYS FOUND BY CLASS MEMBERS:
http://www.minsocam.org/MSA/K12/properties/minid/mineralid.html
http://www.minsocam.org/msa/collectors_corner/id/mineral_id_keyi1.htm
http://www.minsocam.org/MSA/collectors_corner/id/mineral_id_keyq1.htm
http://facweb.bhc.edu/academics/science/harwoodr/Geol101/Labs/Minerals/
http://www.minsocam.org/msa/collectors_corner/id/mineral_id_keyq1.htm
w
Demonstrate that you can use the key to
fully describe and identify a mineral specimen.