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Historical Geology – Introduction . GLY-1102 Introduction to Historical Geology. Dr. Hageman. Historical Geology – Introduction . GLY-1102 Introduction to Historical Geology. Dr. Hageman Hay - gah - man. Historical Geology – Introduction . Historical Geology.

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course goals8

Historical Geology – Introduction

Course Goals

• Fulfills Core NATURAL SCIENCE

• Develop critical thinking.

• Life long awareness.

many new terms10

Historical Geology – Introduction

Many new terms.

• Keep it simple.

• Ask me!

• Do not accept undefined jargon.

facts vs concepts14

Historical Geology – Introduction

facts vs. concepts

• Information

• Principles

• Synthesis

facts vs concepts15

Historical Geology – Introduction

facts vs. concepts

• Information

• Principles

• Synthesis

• Application

hard sciences e g chemistry and physics

Historical Geology – Introduction

"Hard Sciences”e.g. Chemistry and Physics

Deductive reasoning:

Predicts results from known causes

historical geology interpretive science

Historical Geology – Introduction

Historical GeologyInterpretive Science

Inductive reasoning:

Interpretation of ancient causes

from observable historical results

historical geology interpretive science19

Historical Geology – Introduction

Historical GeologyInterpretive Science

• No equation for mountains.

• No formula for extinction of dinosaurs.

• Historical Geology is like CSI.

historical geology interpretive science20

Historical Geology – Introduction

Historical GeologyInterpretive Science

Based on:

•observations (clues) and

• your knowledge of physical geology

and biological concepts

historical geology interpretive science21

Historical Geology – Introduction

Historical GeologyInterpretive Science

• you reconstruct a sequence of events

that occurred over geologic time;

• then develop an explanation of events

that account for object you are studying.

historical geology interpretive science22

Historical Geology – Introduction

Historical GeologyInterpretive Science

note: inductive reasoning does not

absolve us from quantification

fields of geology

Historical Geology – Introduction

Fields of Geology

Petrology: study of the formation of rocks.

Sedimentary, Igneous, & Metamorphic.

Sedimentology: environments, depositional process & rocks.

Stratigraphy: relationships of strata in time and space.

Structural Geology: how rocks are deformed during stress.

Mountain building and Plate Tectonics.

Paleontology: study of ancient life.

fields of geology24

Historical Geology – Introduction

Fields of Geology

Geochemistry & Geophysics: application of

chemistry and physics to the study of the earth.

Field Geology: application of all to the interpretation

of rocks "in the wild".

slide25

Historical Geology – Introduction

Appalachian students at Hutton’s Unconformity, Siccar Point, Scotland

slide27

Metaphor

4.6 billion years

= 1 calendar year

origin of the Earth = Jan 1

today = Midnight Dec 31

slide39

Before Midnight

1 min. 9 sec. Dawn of Civilization 10,000yr

3.4 sec. Columbus ~500yr

14/100 sec. ASU Student ~20 yr

slide40

How to calculate your own

Geologic Time Scale Metaphor

1. Choose your metaphor:

Football Field = 100 yards

Age of Earth = 4,600,000,000 yrs

slide41

How to calculate your own

Geologic Time Scale Metaphor

2. Calculate Years per Metaphor Unit:

100 yards ÷ 4,600,000,000 yrs

= 2.2 x 10-8 yards/year

= 0.000000022 yards/year

slide42

How to calculate your own

Geologic Time Scale Metaphor

3. Pick your key events and dates:

• First Dinosaur = 215,000,000 yrs

• Dinosaur Extinction = 65,000,000 yrs

slide43

How to calculate your own

Geologic Time Scale Metaphor

4. Multiply by your unit conversion:

• First Dinosaur = 215,000,000 * 0.000000022 yards/year

= 4.7 yard line

• Dinosaur Extinction = 65,000,000 * 0.000000022 yards/year

= 1.4 yard line

origin of the Earth is 98.6 yards away

business

Historical Geology – Introduction

Business

CourseWebPage

http://www.acs.appstate.edu/%7Ehagemansj/GLY1102.html

Your grade in GLY-1102 is based on your performance in:

Lecture 75%

Two lecture exams (20% ea.)

One cumulative final exam (30%)

Participation 5% (~10 open-note quizzes at end of lecture, random)

Lab 25%

business45

Historical Geology – Introduction

Business

Grades on a 90-80-70-60 scale.

Only curved if there is systematic error on my part.

Attendance is required.

business46

Historical Geology – Introduction

Business

Everyone should know the following.

Ability to recognize and classify common minerals.

(rxs & min. sets in library)

Ability to recognize common igneous, sedimentary &

metamorphic rocks.

Geographic positions of states within the United States.

General familiarity with world geography including

continents and oceans.

business47

Historical Geology – Introduction

Business

•All Lab Sections will meet this week.

• You MUST bring the lab exercise book to lab.

• 11-O-X Field trip April 12-13th

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