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 #1 - 9 (Why Study Geology? - Hard Rock/Igneous + Metamorphic.)Tuesday (Sept. 27) 7 - 8 pm

Note lecture meets at 10am and Noon on Wed., 9/28228 Natural History Building(Noon Lecture Section)

100 Material Science Engineering Building (10AM Lecture Section)*** BRING STUDENT ID ***

Question/Answer Session = Mon. (Sept. 26) 5 - 6 pm, 141 Loomis LabPrevious 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 e-mail to Prof. Altaner Wed. (9/28) 5 - 6 pm, 260 NHB (GEOL 100 Discussion room)

Other times for Conflict Exam are available, if essentialSee Frequently Asked Questions #23, 25, and 32 for advice from Prof.Altaner

on how to prepare for the exam

Rocks

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.

Grain Size Page 27

• Fine

• Medium

• Coarse

• Glassy

Arrangement - Cemented

Arrangement – Interlocking Page 28

Arrangement - Foliated

Arrangement - Frothy

04_02.jpg

Igneous Rocks Page 29– cooling of magma or lava. Intrusive and ExtrusiveComposition: silicic, mafic, intermediate

Sedimentary Rocks

Clastic – cemented fragmentsCarbonates – cemented shell fragments

Chemical – precipitated from water – interlockingComposition (Minerals): calcite, dolomite, quartz, halite

Regional Metamorphism - Foliation

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Contact Metamorphism of Limestone

Limestone

Marble