G 452/552 Geology of the Oregon Country
Summer Term 2012
Broken Links? complaints?
email jjackson@pdx.edu
Revised 15 August 2012
Some videos of erupting volcanoes
(Send recommendations of better videos to add to the list)
July 24: Cascade Volcanoes Part One
July 25: Cascade Volcanoes Part Two
July 26: Some comments on plate tectonics
NB: the last two slides show web addresses for animations constructed by Professor Tanya Atwater. These addresses have been replaced by a link with many other animations:
http://emvc.geol.ucsb.edu/1_DownloadPage/Download_Page.html
An interesting supplement to these animations is found further down the page under the note regarding Prof. Nadine McQuarrie's work.
July 31 Eastern Oregon Volcanism
August 1 Earthquakes and the Cascadia Margin Part One
Three websites for real time earthquake monitoring:
IRIS: Incorporated Research Institutions for Seismolgy
Southern California Earthquakes
Pacific Northwest Seismic Network
August 2 Earthquakes and the Cascadia Margin Part Two
Two videos to watch if you are interested in Portland or the Pacific Northwest's earthquake hazard:
Sesimological Society of America 2010 Annual Meeting Town Hall - Portland OR
(The talk by Jed Samson covers commercial buildings and a few bridges)
AGU Fall Meeting Frontiers in Geophysics: Hiroo Kanamori
Tohoku to Tsunami: Personal Account from Science to Experience
August 8 Glaciation and Paleoclimates
One of my favorite animations is by Nadine McQuarrrie, who held a post-doc with Brian Wernicke. One result of their collaboration is this 34 million history of the western US. Have a look at it, and consider the implications for the Basin and Range in Oregon. It also has implications for the young domes and active faults that we see in the Pacific Northwest.
http://geosphere.geoscienceworld.org/cgi/content/full/1/3/147/DC1
August 15 Terranes: Siletzia and the Klamaths
August 16 Terranes: the Blue Mountains
Some Useful Websites, in no particular order:
Earthquakes in the Pacific Northwest: The Pacific Northwest Seismic Network
Plate Tectonic Animations
Several researchers have placed animations of their work on line. Below are a few:
Tanya Atwater worked out the relationship of sea floor spreading anaomolies on the Pacific Ocean floor with the history of the San Andreas fault and western North America. Her animations are hosted at UC Santa Barbara:
Educational Multimedia Education Center
Chris Scotese has been a leader in computer animations of plate movements on the globe. His website is
The University of Texas Institute for Geophysics has animations compiled by Larry Lawver and colleagues:
One of my favorite animations is by Nadine McQuarrrie, who held a post-doc with Brian Wernicke. One result of their collaboration is this 34 million history of the western US
http://geosphere.geoscienceworld.org/cgi/content/full/1/3/147/DC1
Hydrology: how does one analize stream flow? Here is a good start:
Oregon State Turtorial on Streamflow Analysis
A set of fine photographs illustrating geology in the field by Marli Miller of U of Oregon:
http://www.marlimillerphoto.com/
A source of field trip guides to localities throughout Oregon is provided by the Oregon Department of Geology and Minerals Industries (DOGAMI):
http://www.oregongeology.com/sub/pub&data/GeoTripGuides.htm
A good introduction to paleomagnetism and its diverse applications can be found at Lisa Tauxe's site:
http://magician.ucsd.edu/Essentials/
Introduction to General Geology from the University of Houston
http://www.uh.edu/~jbutler/physical/onlinefall2001.html
An introduction to the Geologic Time Scale from UC Berkeley
http://www.ucmp.berkeley.edu/exhibits/geologictime.php
Gillian Fouger and Don Anderson developed a website devoted to the mantle plume hypothesis. It contains many links to current and classic plate tectonics papers:
Ron Blakey's paleogeographic maps of the southwest US, North America, and more
(scroll down the page to find separate mapping themes
Interpreting geomorphology from satelite and astronaut images (this site can be slow)
http://disc.sci.gsfc.nasa.gov/hydrology/geomorphology
Some of these guide books are fully available on this site, some are not.
Field guides from the Geological Society of America.