Portland Community College | Portland, Oregon

Geology of the National Parks (G 147) is a one-term introductory course that covers basic concepts of geology while exploring formation and evolution of the national parks. This course can be used to partly fulfill graduation requirements for the Associate Degree, and has been approved for block transfer. The text and materials have been chosen by the faculty and the emphasis of the course will be the viewpoint of the author(s). This includes the geologic time scale and the evolution of the Earth.

Regarding the teaching of basic geologic principles (such as geologic time and the theory of evolution), the Portland Community College Geology Department stands by the following statements about what is science.
 

Science is a fundamentally non-dogmatic and self-correcting investigatory process. A scientific theory is neither a guess, dogma, nor myth. The theories developed through scientific investigation are not decided in advance, but can be and often are modified and revised through observation and experimentation.
Creation science, also known as scientific creationism, is not considered a legitimate science, but a form of religious advocacy. This position is established by legal precedence (Webster v. New Lenox School District #122, 917 F.2d 1004).
Geology instructors at Portland Community College will teach the generally accepted basic geologic principles (such as geologic time and the theory of evolution) not as absolute truth, but as the most widely accepted explanation for our observations of the world around us. Instructors will not teach that creation science is anything other than pseudoscience.
Because "creation science", "scientific creationism", and "intelligent design" are essentially religious doctrines that are at odds with open scientific inquiry, the Geology/General Sciences SAC at Portland Community College stands with such organizations such as the National Association of Geoscience Teachers, the American Geophysical Union, the Geological Society of America, and the American Geological Institute in excluding these doctrines from our science curriculum.
Students are expected to be able to read and comprehend college-level science texts and perform basic mathematical operations in order to successfully complete this course.

Students who successfully compete this course should be able to:

1) Use an understanding of the rock cycle, plate tectonics and surface processes to explain how the geologic features of the national parks formed.
2) Use an understanding of geologic dating methods and the interpretation of geologic deposits to explain how scientists reconstruct the geologic history of various national parks.
3) Access earth science information from a variety of sources, evaluate the quality of this information, and compare this information with current models of geologic process, identifying areas of congruence and discrepancy.
4) Make field and laboratory based observations and measurements of earth materials and landscapes and use scientific reasoning to interpret these observations and measurements.
5) Use scientifically valid modes of inquiry, individually and collaboratively, to critically evaluate the effects of tourism and resource extraction on national parks; evaluate the efficacy of possible ethically robust responses to these challenges, and appropriately communicate the results of this analysis to their peers.
6) Examine the role of national park geology to our evolving understanding of global change and sustainability while placing the creation and management of the national park system in its historical and cultural context.

Students who successfully complete this course should be able to:

1) Appreciate the history and geology of the national parks and their contribution to our evolving understanding of global change and sustainability while placing the development of the national park system in its historical and cultural context.
2) Become an Earth science literate citizen.
An Earth-science-literate citizen:
- understands the fundamental concepts of Earth’s many systems
- knows how to find and assess scientifically credible information about Earth
- communicates about Earth science in a meaningful way
- is able to make informed and responsible decisions regarding Earth and its resources
(Supporting concepts can be found at Earth Science Literacy Initiative).

The material in this course will be presented in a lecture/discussion format and laboratory exercises.  Other educationally sound methods may be employed such as guest lectures, field trips, research papers, and small group work.

At the beginning of the course, the instructor will detail the methods used to evaluate student progress and the criteria for assigning a course grade. The methods may include one or more of the following tools: examinations, quizzes, homework assignments, laboratory write-ups, research papers, small group problem solving of questions arising from application of course concepts and concerns to actual experience, oral presentations, or maintenance of a personal work journal.

1. Understand and use methods of scientific inquiry.
2. Examine plate tectonics as an overarching theory of geology, connecting the interior of the Earth to surface features.
3. Describe the major types of materials that make up the Earth's crust and explain how each material relates to the rock cycle.
4. Interpret the origins of geologic features in America's national parks in terms of the interplay between tectonic, volcanic, and erosional processes.
5. Relate the landscapes found in national parks to erosion and deposition by water, wind, ice and mass movements.
6. Examine the geologic impacts of past and future climate, sea level and groundwater changes on national parks.
7. Apply the principles used in radiometric and relative dating to the geologic history of the national parks.
8. Outline the major events that have shaped North America's geologic history and describe parklands where features related to these events could be observed;
9. Discuss the interaction of humanity with the national park system

Topics to be covered include:

Introduction to Course:
    Introduction to the National Park System
    Nature of scientific inquiry
    Minerals, rocks, and the rock cycle
    Concept of geologic time
Plate Tectonic Theory
    Connection to Interior - heat loss
    Divergent Boundary, continental rifting, and creation of passive margin
    Convergent Boundary, subduction zones, collisional mountain building, accreted terrains
    Transform Boundary
    Hot Spots, oceanic, continental
Building North America
Reworking by wind, water, ice - depth of coverage at instructor's discretion
    Weathering
    Mass wasting
    Karst   
    Slopes
    Rivers
    Glaciers
    Wind
    Coasts
 Interaction of parks with humanity
    Tourism - connection with individual students - toll of tourists on parks - finding balance
    Resource use - water depletion/contamination, mining, other resources