GSOC Annual Holiday Party is scheduled for SATURDAY, December 16, at 614 NE 114th Ave., Portland. GSOC Board Members will provide main dishes with protein of various sorts. Other members please bring vegetable, side dishes or desserts for 6 to share, plus beverage of their choice. Music program to be announced.
There will be no December Friday night meeting due to the Holiday Party.
GSOC field trip leaders will present our "Year in Review" program with brief slide show summaries of their trips.
Rik Smoody: “The Eclipse! And More…,” August 18-21
Paul Edison-Lahm: “Johnson Creek Watershed Geology Science Pub” September 21, 2017
Larry Purchase: “GSOC Rock Quarry and Gravel Pit Field Trip,” June 11-12
Sheila Alfsen, “Mt. St. Helens Helicopter Tour,” September 9
Recent lidar mapping of large landslides in the western Columbia Gorge in Skamania County, WA, shows that there are many more landslides than previously thought. The mapping area contains at least 215 discrete landslides of various ages — ranging from more than 15,000 years old to currently active. Tom Pierson is a senior research scientist at the USGS Cascades Volcano Observatory in Vancouver, Washington, where his investigations focus mainly on volcano hazards involving lahars (mudflows), floods, and landslides—processes occurring both during and following volcanic eruptions.
This car caravan/carpool field trip will focus on the diverse geology of Idaho’s Snake River Plain and the granitic core and the exterior ‘skin’ of the Albion Mountains/Middle Mountain region. The trip will be based in Boise for three nights (June 2, 3, 7) and Twin Falls for three nights (June 4, 5, 6). Participants will rendezvous in Boise the morning of June 3 after traveling from Portland the previous day. Some light walking/hiking will be on the agenda (maximum 1.6 miles one way) and moderate elevation gain (approx. 200 ft.). Most travel will be on paved roads but also there is about 46 miles of good quality gravel, four miles of graded dirt track, and two miles of a dirt track with a few patches of ruts and rocks, which is negotiable by normal clearance vehicles.
Dedicated to Pacific Northwest Geology since 1935
The Geological Society of the Oregon Country (GSOC) is a non-profit organization based in Portland, Oregon. The society is dedicated to the study of geology in the Pacific northwest and is open to persons with all levels of education and professional backgrounds.