Earth’s Origin, and an Introduction to Topographic Maps
In the first module of the course, we will briefly introduce you to the field of geology (Chapter 1). It will also give you a sense of the diversity of topics we will be discussing in detail during the semester. Then, we will move on to the origin of Earth and the Solar System (Chapter 22). This information is important for understanding the key processes and forces at work on both our planet and throughout the universe.
In addition to learning about the formation of our planet, you will also be introduced to topographic maps and their use in visualizing Earth’s surface. A topographic map is an extremely useful type of map that adds a third dimension (vertical) to an otherwise two- dimensional map defined by the north, south, east, and west compass directions. This third dimension on a topographic map is represented by contour lines, which are imaginary lines drawn on a map that represent an elevation above sea level. A map with such elevation lines will provide the map reader with detailed information regarding the shape of the Earth’s surface.
Knowledge of how to interpret a topographic map will allow a person to locate and identify features on the Earth’s surface such as hills, valleys, depressions, steep cliffs and gentle slopes. In addition, the map reader will be able to identify areas that may be prone to geologic hazards such as landslides and flooding. Any person interested in purchasing property, landscaping, planning a hike or camping trip, or who needs to survey an area for construction of a road, dam, or building will want to first consult a topographic map.
Select images throughout this course to see them larger.
At the completion of this module you will be able to:
- Explain what the field of geology is, why it is important, and the type of work geologists do.
- Describe what happened during the Big Bang, when it happened, and the evidence for it.
- Explain how clouds of gas and dust can form stars, planets, and solar systems.
- Describe the early stages of Earth’s formation, how the moon formed, and the age of each.
See the Schedule of Work for dates of availability and due dates.
Be sure to read through the directions for all of this module’s activities before getting started so that you can plan your time accordingly. You are expected to work on this course throughout the week.
- Chapter 1 (Introduction to Geology)
- Chapter 22 (The Origin of the Earth and the Solar System)
30 points, class participation
For this week’s discussion topic, “Introductions” you should earn at least 30 points toward your required 150 points of class participation.
Pay close attention to the Course Schedule for when each of your posts are due. Some are due earlier than others. Failure to post on time will result in lost points.
Module 1 Assignment: Topographic Maps
After you complete the reading, you can start working on Module 1 Assignment – Topographic Maps.
Module 1 Quiz
Module 1 Quiz has 10 multiple-choice questions and is based on the content of the Module 1 readings and Assignment 1.
The quiz is worth a total of 10 points (1 points per question). You will have only 10 minutes to complete the quiz, and you may take this quiz only once. Note: that is not enough time to look up the answers!
Make sure that you fully understand all of the concepts presented and study for this quiz as though it were going to be proctored in a classroom, or you will likely find yourself running out of time.
Keep track of the time, and be sure to look over your full quiz results after you have submitted it for a grade.
Your Questions and Concerns…
Please contact me if you have any questions or concerns.
General course questions: If your question is of a general nature such that other students would benefit from the answer, then go to the discussions area and post it as a question thread in the “General course questions” discussion area.
Personal questions: If your question is personal, (e.g. regarding my comments to you specifically), then send me an email from within this course.
- Module 1: Earth's Origin, and an Introduction to Topographic Maps. Authored by: Anne Huth. Provided by: Pima Community College. Located at: http://cc.pima.edu/~lumen/glg101/module%20parts%20-%20LUMEN/Module1/L_Mod1.html. License: CC BY: Attribution
- Figure 1: European Southern Observatory. Authored by: S. Brunier. Located at: https://www.eso.org/public/images/lv_Brunier_hb-1/. License: CC BY: Attribution
- Figure 2: European Southern Observatory. Authored by: Y. Beletsky. Located at: https://www.eso.org/public/images/potw1439a/. License: CC BY: Attribution
- Figure 3: European Southern Observatory /INAF-VST/OmegaCAM. Located at: https://www.eso.org/public/usa/images/eso1119a/?lang. License: CC BY: Attribution
- Physical Geology, Adapted by Anne Huth, Pima Community College. Authored by: Steven Earle. Located at: https://opentextbc.ca/geology/. License: CC BY: Attribution
- Laboratory Manual, Adapted by Anne Huth, Pima Community College. Authored by: Bradley Deline, Randa Harris, and Karen Defend. Located at: https://open.umn.edu/opentextbooks/BookDetail.aspx?bookId=506. License: CC BY: Attribution
- Figure 4: USGS US Topo 7.5-minute map for Jaynes, AZ 2011. Located at: https://catalog.data.gov/saml2_unauthorized. License: Public Domain: No Known Copyright
- Figure 5: Grand Canyon, AZ, via Topoview. Provided by: USGS. Located at: https://ngmdb.usgs.gov/topoview/viewer/#4/40.00/-100.00. License: Public Domain: No Known Copyright