Department
of Earth Science |
Northeastern
Illinois University
INTRODUCTION TO EARTH SCIENCE
ESCI 121
Section 05
Spring 2009
Department
of Earth Science |Northeastern
Illinois University
| Example 1 | Example 4 (scroll down to photos of the granite obelisk) | |
| Example 2 (Source: "Repair My Foundation") | Example 5 | |
| Example 3 (Note the green color on the statue. This is at Bohemian National Cemetery; NEIU is in the background!) | Example 6 | |
| Example 7 (Important: this area is in a warm desert--no freezing, little rain. Yet there is debate about what caused the weathering!) |
w
List the agents of erosion, and give examples of areas in the world that are
likely to experience erosion.
w
List 4-5 media in which sediment
may be transported.
w
List areas in the world that are likely to serve as environments of
deposition.
w
Using a sedimentary rock key, examine, describe, classify, and name the
sedimentary rocks in your rock kit. Please note: on whatever key you use, you
may ignore the following rocks: breccia, siltstone, and travertine. Also, some
keys use the word "mud"; if yours does, please substitute the word "clay".
Samples used in class are the following: #103, 104, 109, 113, 118, 128, 129,
135, 145, 151, 153, 158.
Igneous Rocks
w
Explain how igneous rocks form, and tell in what part
of the Earth they form.
w
Explain how we can classify igneous rocks on the basis of
crystal size/cooling rate, and list the three main categories within that
classification scheme.
w
Explain how we can classify igneous rocks on the basis of
mineralogic composition, and list the three main categories within that
classification scheme.
w
Using the terms mafic and felsic,
describe the composition of the oceanic crust, continental crust, oceanic
lithosphere, and continental lithosphere.
w
Examine hand samples of igneous rocks and tell whether they
are intrusive or extrusive.
w
Examine hand samples of igneous rocks and tell whether they
are mafic, intermediate, or felsic.
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Examine hand samples of igneous rocks and assess the rate at
which they cooled: slow, fast, or virtually instantly.
w
Describe the characteristics of granite and
basalt, and identify these rocks in hand sample.
