Об этом курсе: Earthquakes, volcanoes, mountain building, ice ages, landslides, floods, life evolution, plate motions—all of these phenomena have interacted over the vast expanses of deep time to sculpt the dynamic planet that we live on today. Planet Earth presents an overview of several aspects of our home, from a geological perspective. We begin with earthquakes—what they are, what causes them, what effects they have, and what we can do about them. We will emphasize that plate tectonics—the grand unifying theory of geology—explains how the map of our planet's surface has changed radically over geologic time, and why present-day geologic activity—including a variety of devastating natural disasters such as earthquakes—occur where they do. We consider volcanoes, types of eruptions, and typical rocks found there. Finally, we will delve into the processes that produce the energy and mineral resources that modern society depends on, to help understand the context of the environment and sustainability challenges that we will face in the future.
Автор: Иллинойсский университет в Урбане-Шампейне
Преподаватели: Dr. Stephen Marshak, Professor and Director of the School of Earth, Society, and Environment
Department of Geology
Преподаватели: Dr. Eileen Herrstrom, Lecturer
Geology
| Уровень | Beginner |
| Выполнение | 5 weeks of study, 6-8 hours/week |
| Язык | English |
| Как пройти курс | Чтобы пройти курс, выполните все оцениваемые задания. |
| Оценки пользователей |
Программа курса
НЕДЕЛЯ 1
Orientation
You will become familiar with the course, your classmates, and our learning environment. The orientation will also help you obtain the technical skills required for the course.
8 материалов для самостоятельного изучения
- Leyendo: Welcome to Planet Earth...and You!
- Leyendo: Syllabus
- Leyendo: Google Earth Instructions
- Leyendo: Updating Your Profile
- Leyendo: Social Media
- Leyendo: About the Discussion Forums
- Leyendo: How Graded Discussions Work
- Leyendo: Discussion Rubric
Оцениваемый: Orientation Quiz
Week 1: Earthquakes!
In the lectures for this week, we will consider what an earthquake is, how it occurs, how we can record and measure its size, and what we can do to mitigate damage. Our first weekly assignment consists of reporting your own experience with earthquakes (if any). The Week 1 Lab gives you a chance to work with seismograms, locate an earthquake epicenter, and determine magnitude. Finally, the Week 1 Discussion addresses the balance between risks from quakes and costs of preventive measures.
18 видео, 1 материал для самостоятельного изучения
- Leyendo: Week 1 Overview
- Видео: 1.A.1 Introduction to Earthquakes
- Видео: 1.A.2 Generation of Earthquake Vibrations
- Видео: 1.A.3 Introduction to Faults
- Видео: 1.A.4 Types of Faults
- Видео: 1.A.5 Earthquake Waves
- Видео: 1.B.1 The Intensity and Magnitude of Earthquakes
- Видео: 1.B.2 Seismometers
- Видео: 1.B.3 Interpreting Seismograms and Earthquake Magnitude
- Видео: 1.B.4 Comparing Earthquakes
- Видео: 1.C.1 Damage Due to Ground Shaking
- Видео: 1.C.2 Other Consequences of Earthquakes
- Видео: 1.C.3 Tsunamis
- Видео: 1.D.1 The First Step in Predicting Earthquakes: Recognizing Where They Occur
- Видео: 1.D.2 Earthquake Recurrence Interval
- Видео: 1.D.3 Interpreting The Recurrence Interval
- Видео: 1.D.4 Efforts to Prevent Earthquake Devastation
- Видео: 1.D.5 Mitigating Earthquake Damage
- Видео: Week 1 Lab: Triangulation Lab
- Cuadro de aviso de la discusión: Week 1 Discussion
Оцениваемый: Week 1 Quiz
Оцениваемый: Week 1 Assignment
Оцениваемый: Week 1 Lab
НЕДЕЛЯ 2
Week 2: Plate Tectonics
In the early twentieth century, publication of the hypothesis on continental drift caused an uproar that soon died down. Data collected in mid-century led geologists to reconsider the idea that continents could move. During the 1960s and 1970s, old ideas were reworked into what is now called the theory of plate tectonics. As we will see, this robust theory encompasses many geological phenomena that appear to be unrelated at first glance: earthquakes and volcanoes, but also ice ages, fossils, and mountains. Today, plate tectonics provides an overarching framework for interpreting the Earth. We study its details in Week 2, but we will return to this theory again and again throughout the rest of this course.
17 видео, 1 материал для самостоятельного изучения
- Leyendo: Week 2 Overview
- Видео: 2.A.1 Ideas before Plate Tectonics
- Видео: 2.A.2 Alfred Wegener & Continental Drift
- Видео: 2.A.3 Evidence for Continental Drift
- Видео: 2.A.4 New Discoveries Leading to Plate Tectonics: Seafloor Bathymetry
- Видео: 2.A.5 New Discoveries Leading to Plate Tectonics: Apparent Polar-Wander Paths
- Видео: 2.A.6 New Discoveries Leading to Plate Tectonics: Evidence for Seafloor Spreading
- Видео: 2.B.1 Discovering Plate Tectonics
- Видео: 2.B.2 Earth's Internal Layers and the Concept of a Plate
- Видео: 2.B.3 Three Types of Plate Boundaries: Divergent Plate Boundary
- Видео: 2.B.4 Three Types of Plate Boundaries: Convergent Plate Boundary
- Видео: 2.B.5 Three Types of Plate Boundaries: Transform Plate Boundary
- Видео: 2.B.6 Continental Rifts and Continental Collisions
- Видео: 2.B.7 Intraplate Earthquakes
- Видео: 2.B.8 The Velocity of Plate Motion
- Видео: 2.B.9 Plate Driving Mechanisms
- Видео: Week 2 Lab: Plate Tectonics! Lab Part 1
- Видео: Week 2 Lab: Plate Tectonics! Lab Part 2
- Cuadro de aviso de la discusión: Week 2 Discussion
Оцениваемый: Week 2 Quiz
Оцениваемый: Week 2 Assignment
Оцениваемый: Week 2 Lab
Оцениваемый: Weeks 1-2 Discussion Samples
НЕДЕЛЯ 3
Week 3: Volcanoes!
This week, you will learn how and where rocks can melt, and what happens when molten material of various compositions bursts out of the ground. The lecture videos also cover different types of eruptions, as well as the rocks and mountains produced by them. In the lab, you will study details about the 1980 eruption of Mount St. Helens and the eruption of Mount Vesuvius in the year 79. The discussion forum gives you the opportunity to weigh risks to people living on or near volcanoes and what can be done to minimize damage and loss of life. The weekly assignment provides a place for you to share your own experiences with volcanoes or eruptions or, if you have never been near a volcano, your thoughts about such events.
23 видео, 1 материал для самостоятельного изучения
- Leyendo: Week 3 Overview
- Видео: 3.A.1 Introducing Volcanoes and the Concept of Molten Rock
- Видео: 3.A.2 Where Does Molten Rock Come From?
- Видео: 3.A.3 How Does Rock Melt?
- Видео: 3.A.4 Forming Molten Rock; a Magma Composition
- Видео: 3.A.5 Volcanoes Associated with Subduction
- Видео: 3.A.6 Melting at Rifts and Mid-Ocean Ridges
- Видео: 3.A.7 Melting at Hot Spots
- Видео: 3.B.1 Introduction to Igneous Rocks
- Видео: 3.B.2 What Are Igneous Rocks Composed Of?
- Видео: 3.B.3 When Molten Rock Solidifies
- Видео: 3.C.1 Types of Volcanic Eruptions
- Видео: 3.C.2 Magma and Lava with Gas
- Видео: 3.C.3 Eruption Materials
- Видео: 3.C.4 Pyroclastic Debris
- Видео: 3.C.5 Three Different Volcano Shapes
- Видео: 3.C.6 Eruption Styles and Case Studies
- Видео: 3.C.7 Case Studies of Volcanic Explosions: Pompeii, Present-Day Italy
- Видео: 3.C.8 Super Volcanoes in the Geologic Record
- Видео: 3.D.1 Volcanic Hazards, Part 1
- Видео: 3.D.2 Volcanic Hazards, Part 2
- Видео: 3.E.1 Predicting Volcanic Eruptions
- Видео: 3.E.2 Dealing with Volcanic Hazards
- Видео: Week 3 Lab: Volcanoes! Lab Introduction
- Cuadro de aviso de la discusión: Week 3 Discussion
Оцениваемый: Week 3 Quiz
Оцениваемый: Week 3 Assignment
Оцениваемый: Week 3 Lab
НЕДЕЛЯ 4
Week 4: Rocks and Mineral Resources
As part of the Week 4 Assignment, you will take a close look at your daily surroundings to identify Earth resources. The video lectures for the week examine various aspects of finding, extracting, and using resources such as metals and stones. For the lab, you will utilize Google Earth to examine several mining sites around the world. In the discussion, you will weigh the pros and cons of mining operations, as many communities have had to do already. This week also includes peer grading discussions, as explained on the How Graded Discussions Work page. Finally, we provide an optional assignment for those who would like to identify some common minerals.
19 видео, 1 материал для самостоятельного изучения
- Leyendo: Week 4 Overview
- Видео: 4.A.1 Basic Classes of Earth Materials
- Видео: 4.A.2 Origin of Earth Materials
- Видео: 4.A.3 Defining Minerals
- Видео: 4.A.4 Clues for Identifying Minerals
- Видео: 4.B.1 Introducing Classes of Rocks
- Видео: 4.B.2 The Nature of Igneous Rocks
- Видео: 4.B.3 Different Types of Sedimentary Rocks
- Видео: 4.B.4 Formation of Clastic Sedimentary Rocks
- Видео: 4.B.5 Primary Sedimentary Structures and Sedimentary Basins
- Видео: 4.B.6 Carbonate Sedimentary Rocks
- Видео: 4.C.1 How Rocks Can Change
- Видео: 4.C.2 Metamorphic Rocks Part 1
- Видео: 4.C.3 Metamorphic Rocks Part 2
- Видео: 4.C.4 The Rock Cycle
- Видео: 4.D.1 The Practical Uses of Rocks
- Видео: 4.D.2 The Nature of Metal Ore Deposits
- Видео: 4.D.3 Global Steel Usage
- Видео: 4.E.1 Non-Metallic Minerals – Concrete and Crushed Rock
- Видео: 4.E.2 Other Non-Metallic Resources – Brick, Gypsum, Dimension Stone
- Cuadro de aviso de la discusión: Week 4 Discussion
Оцениваемый: Week 4 Quiz
Оцениваемый: Week 4 Assignment
Оцениваемый: Week 4 Lab
Оцениваемый: Weeks 3-4 Discussion Samples
НЕДЕЛЯ 5
Week 5: Energy Resources
The video lectures for this week cover various aspects of energy usage by modern civilization, especially our utilization of fossil fuels. The Week 5 Lab sends you on a Google Earth tour of energy-producing sites around the world, places where both conventional and alternative forms of energy are being generated. The Week 5 Assignment gives you a chance to survey your own personal use of energy – where does it come from and how much do you use – and then to share the information with others in the class. During the Week 5 Discussion, you will consider the implications of how society uses the energy of fossil fuels and the implications for the local environment and global climate.
18 видео, 1 материал для самостоятельного изучения
- Leyendo: Week 5 Overview
- Видео: 5.A.1. Energy Resources from the Earth
- Видео: 5.A.2. Human Use of Energy Over Time
- Видео: 5.B.1. Sources of Energy: Coal Part 1
- Видео: 5.B.2. Sources of Energy: Coal Part 2
- Видео: 5.B.3. Sources of Energy: Coal Part 3
- Видео: 5.B.4. Problems Associated with Coal Mining
- Видео: 5.B.5. Problems Associated with Coal Use
- Видео: 5.C.1. Formation of Hydrocarbons: Oil and Gas
- Видео: 5.C.2. Conventional vs. Non-Conventional Hydrocarbons: Conventional Reserves
- Видео: 5.C.3. Exploring and Drilling for Oil
- Видео: 5.C.4. Transporting and Refining Oil
- Видео: 5.C.5. Where Does Oil Occur, and Why?
- Видео: 5.D.1. Non-Conventional Hydrocarbons: Tar Sands and Oil Shale
- Видео: 5.D.2. Natural Gas
- Видео: 5.D.3. Obtaining Shale Gas: Hydrofracturing
- Видео: 5.D.4. Challenges Associated with Obtaining Shale Gas
- Видео: 5.E.1. Some Hazards of Oil Production
- Видео: 5.E.2. Alternative Energy Resources
- Cuadro de aviso de la discusión: Week 5 Discussion
Оцениваемый: Week 5 Quiz
Оцениваемый: Week 5 Assignment
Оцениваемый: Week 5 Lab
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Авторы
Иллинойсский университет в Урбане-Шампейне
The University of Illinois at Urbana-Champaign is a world leader in research, teaching and public engagement, distinguished by the breadth of its programs, broad academic excellence, and internationally renowned faculty and alumni. Illinois serves the world by creating knowledge, preparing students for lives of impact, and finding solutions to critical societal needs.
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Рейтинги и отзывы
Nice entry to geology.
Th course is really great and rich and what I rally liked is the practical work on google earth.
This is the second time that I took this course. It was more in depth in topics than the original course, and I enjoyed it. Good presentation. Thank you.
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KS
Excellent course! Very informative without being tedious. Clear and concise delivery and illustrations. Would recommend!