1. Format = ~27 Multiple Choice, ~14 True/False, ~9 Matching
Geology 100 Exam #1
Format = ~27 Multiple Choice, ~14 True/False, ~9 Matching
~20% from Discussion/~80% from Lecture
Coverage
First 4 weeks of Discussion (Topographic Maps I - Eye for Rocks)
Corresponds to Chapters 1, 2, 4, + 5 in Discussion Guide
Lectures # (Why Study Geology? - Hard Rock/Igneous + Metamorphic.)
Tuesday (Sept. 27) pm
Note lecture meets at 10am and Noon on Wed., 9/28
228 Natural History Building(Noon Lecture Section)
100 Material Science Engineering Building (10AM Lecture Section)
*** BRING STUDENT ID ***
Question/Answer Session = Mon. (Sept. 26) pm, 141 Loomis Lab
Previous Exam #1 on home page of GEOL 100 Illinois Compass Web site; no
answer key provided with old Exam, attend Question/Answer Session for answers.
Conflict Exam
Format = 15 Short Answer questions
Level of Difficulty = Similar to regularly scheduled Exam
Sign up before or after Lecture or by to Prof. Altaner
Wed. (9/28) pm, 260 NHB (GEOL 100 Discussion room)
Other times for Conflict Exam are available, if essential
See Frequently Asked Questions #23, 25, and 32 for advice from Prof.Altaner
on how to prepare for the exam

2. Identification of Rocks is by texture and composition
Rocks are aggregates of minerals
Identification of Rocks is by texture and composition
Texture is the size, shape and arrangement of grains
Composition is the minerals in the rock.

3. Grain Size Page 27
Fine
Medium
Coarse
Glassy

4. Arrangement - Cemented

5. Arrangement – Interlocking Page 28

6. Arrangement - Foliated
Arrangement - Frothy

7. 04_02.jpg Igneous Rocks Page 29– cooling of magma
or lava. Intrusive and Extrusive
Composition: silicic, mafic, intermediate

8. Sedimentary Rocks Chemical – precipitated from water – interlocking
Clastic – cemented fragments
Carbonates – cemented shell fragments
Chemical – precipitated from water –
interlocking
Composition (Minerals): calcite, dolomite, quartz,
halite

9. Regional Metamorphism - Foliation

10. 06_17.jpg
Marble
Limestone
Contact Metamorphism of Limestone