INTRO TO EARTH SCIENCE
COURSE DESCRIPTION
ASSIGNMENTS
WIKI
INSTRUCTOR CONTACT
INFO
COURSE REQUIREMENTS
|
INTRODUCTION TO EARTH SCIENCE
ESCI 121
Fall 2010
Section 06
|
DAILY OBJECTIVES |
By the end of today's class, you should be able
to do the following:
IGNEOUS ROCKS
w
Describe how igneous rocks may be sub-classified
on the basis of their crystal size and on the
basis of their mineral composition.
w
List the characteristics of rocks that help
identify them as being igneous.
w
Explain the meaning of the following terms:
granite, basalt, plutonic, volcanic,
intrusive, extrusive, mafic, intermediate,
felsic. (For extra fun, add these
terms to the list: aphanitic, phaneritic).
w
Explain what the crystal size of a rock reveals
about
its cooling history.
w
Tell what major
group of minerals composes most igneous rocks,
and list specific minerals found in felsic,
intermediate, and mafic rocks.
w
Tell which types of
igneous rocks compose the bulk of continental
and oceanic lithospheric plates.
w
Using hand samples of igneous rocks, demonstrate
that you can use crystal size (texture) and
mineralogic composition to
arrive at a rock
name. In class, we practiced with samples
102, 117, 124, 136, 137, 138, 139, 142, 143,
149, 152, and 157. |
|
CAREERS IN EARTH SCIENCE
AVERAGE SALARY
FOR GEOSCIENTISTS: $79,160
|
