January Lecture: GSOC's Year in the Field
Jan
11
7:30 PM19:30

January Lecture: GSOC's Year in the Field

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

GSOC field trip leaders will present our "Year in Review" program with brief slideshow summaries of their trips.

  • Dave Olcott: Snake River Plain

  • Sheila Alfsen, Mt. St. Helens Helicopter Tour

  • Paul Edison-Lahm, Camp Hancock and John Day Basin President’s Trip; Downtown PDX Building Stone Tours; Eastbank Bike GeoTour; Johnson Creek Watershed Tour

View Event →
February Lecture: Next Generation Science Standards
Feb
8
7:30 PM19:30

February Lecture: Next Generation Science Standards

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

Dr. Michael Cummings, PSU Emeritus Professor of Geology, will discuss implementation of Next Generation Science Standards (NGSS) for students in Oregon. Supporting teachers as they made the shift from the old way of teaching science to the expectations of NGSS has been the focus of professional development since 2015. Dr. Cummings will describe three examples that illustrate working with teachers and districts to implement NGSS. These include: 1) Project based learning in the Mitchell School District, 2) Groundwater studies in Harney basin at Crane Union High School, and 3) Integration and implementation of NGSS in multi-grade classrooms.

Photo: Harney Rockers, Crane Union High School Physical Science Class.

View Event →
June Lecture: John Armentrout, the Marine Coaledo Formation:
Jun
14
7:30 PM19:30

June Lecture: John Armentrout, the Marine Coaledo Formation:

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

Progress report on an integrated study of an Eocene subtropical shelf-margin delta, Coos Bay, Oregon

The Middle to Late Eocene Coaledo Formation and underlying Beds of Sacchi Beach record a marine history of forearc sedimentation. The sediments aggrade from slope turbidites to shoreface deltaic sandstone encased in deep-water silty mudstone. This talk is a progress report on a multiyear, multidiscipline research program, testing the hypothesis that the Sacchi Beach-Coaledo succession represents a shelf-margin lowstand of sealevel deltaic system. A team of 12 geoscientists is collecting an interdisciplinary database for reassessing the depositional history of the rocks exposed along the Cape Arago, Shore Acres and Sunset Bay State Parks.

View Event →
Eastbank Bike GeoTour
Jun
29
10:00 AM10:00

Eastbank Bike GeoTour

  • 701 Southwest 6th Avenue Portland, OR, 97204 (map)
  • Google Calendar ICS

Ride with us along the Eastbank from the Portland's youngest rocks to its oldest. We will dine after at the Milwaukie Station Food Carts and Beer Garden. No geologic knowledge required.

This is a 3-hour moderately-paced bike ride (9 miles) with a return by MAX. (A shorter 5 mile route, with return by MAX, is also available.)  We will be starting from "Peace Sign Park" at NE Oregon and Interstate. Tickets go on sale March 10.

View Event →
Special Event: Yumei Wang "Disasters, Resilience and the Next Generation"
Nov
8
6:30 PM18:30

Special Event: Yumei Wang "Disasters, Resilience and the Next Generation"

  • Portland State University, Room TBA (map)
  • Google Calendar ICS

Yumei Wang, Le Val Lund Lecture, Followed by Panel Discussion

This event is being rescheduled.

Co-sponsored with Portland State University Dept. of Geology.

In her talk, Yumei Wang will present a challenge to develop new and transformative approaches for improving society’s resilience to future natural disasters.

The severity and consequences of disasters caused by natural hazards are greatly affected by the functionality of critical lifeline infrastructure after the events. The resilience of critical lifeline infrastructure – related to fuel, power, water, transportation, and communications – is essential for reducing the frequency and impact of future disasters.  Currently, various lifeline systems are designed and operated independently; yet many systems depend on each other to function. A single failure in one lifeline system can lead to multiple failures across multiple systems and escalate into a much larger and more complex disaster. To prevent severe critical infrastructure failures and minimize the detrimental societal effects of major and regional disasters such as a Cascadia earthquake and tsunami, as a society we need to develop new coordinated approaches to control the delivery of lifeline services.

The American Society of Civil Engineers (ASCE) has honored Yumei Wang, P.E., with the 2018 Le Val Lund Award for Practicing Lifeline Risk Reduction for her outstanding contributions to the field of lifeline engineering and for promoting seismic lifeline resilience and fuel resilience in Oregon, including the development of a statewide resilience plan.” Read more: http://stage.news.asce.org/oregon-resilience-work-earns-wang-recognition/

View Event →

GSOC 10th Annual Holiday Potluck & Rock Donation
Dec
14
6:00 PM18:00

GSOC 10th Annual Holiday Potluck & Rock Donation

Our GSOC Annual Holiday Party is scheduled for FRIDAY, December 14, 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. Please RSVP.

Bring a Rock to Help Us Decorate the Audubon Geologic Fireplace at Marmot Cabin!

Portland Audubon has been working with GSOC and Poetry in Stone to design a rock veneer for the fireplace at their new Marmot Cabin environmental educational facility which will represent the geological story of Oregon and they are requesting donations of locally representative accent rocks. Do you have any nice rocks collected in Oregon or Washington that you’d like to donate? Bring them to the potluck and meet our friends from Audubon!

Schedule of activities

6:00 pm: Set-up for party
6:30 pm: Dinner buffet
7:15 pm: Welcome presentation. Nominations for GSOC Board members for the 2019-2020 year will be open.
7:30 pm: Dessert and musical program. A slide show of the field trips will be displayed during the meal and afterwards.
8:30 pm: Clean-up

View Event →
November Lecture: Extinctions (Dr. Bill Orr)
Nov
9
7:30 PM19:30

November Lecture: Extinctions (Dr. Bill Orr)

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

Oregon’s premier paleontology, Dr. Bill Orr will speak on the topic of "Extinctions." Although we perceive them as catastrophes, mass extinctions are one of the most powerful tools geologists employ as time markers. The presentation will address the major phanerozoic extinctions was well as their probable causes. Included will be a summary of the ever changing cause and effect of the Cretaceous/Tertiary event.

View Event →
October Lecture: The Other Flood — Ice-age Bonneville Flood on the Snake River (Jim O'Connor, USGS)
Oct
12
7:30 PM19:30

October Lecture: The Other Flood — Ice-age Bonneville Flood on the Snake River (Jim O'Connor, USGS)

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

The Bonneville Flood was one of the largest floods on Earth. The cataclysmic flood-from the rapid 115 meter drop of Lake Bonneville from the Bonneville level to the Provo level-was nearly 200 meters deep in places and flowed at a maximum rate of about 1 million cubic meters per second — about 100 times greater than any historical Snake River flood. Jim O’Connor has worked at the U.S. Geological Survey since 1991, intent on improving understanding of the processes and events that shape the remarkable and diverse landscapes of the Pacific Northwest.

View Event →
September Lecture: Earthquake Early Warning Systems (Bill Burgel)
Sep
21
7:30 PM19:30

September Lecture: Earthquake Early Warning Systems (Bill Burgel)

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

Bill Burgel will speak on the topic of Earthquake Early Warning Systems. His presentation will focus on efforts to provide extremely quick and accurate information of a seismic event especially Magnitude 5.0 and higher to businesses and communities so that they can react to minimize the extent of earthquake damage and/or loss of life. Bill spent 48 years in Railroad Industry after receiving his MS in Structural Geology from Idaho State University and his BS in Engineering from the University of Michigan, with a minor in Geologic Oceanography.

View Event →
Mt. St. Helens Helicopter Tour
Aug
18
12:00 PM12:00

Mt. St. Helens Helicopter Tour

Once again this year, Sheila Alfsen will host a tour by helicopter of Mt. St. Helens and the surrounding devastation area on Aug. 18, 2018. The price includes a presentation in the gift shop theater of the 1980 eruption and its aftermath, and a 40 minute flight over the devastated area and close up to the crater where you can see the effects on the landscape. Additionally Nathan Reynolds, Ethno-ecologist and Habitat Program Manager for the Cowlitz Indian Tribe, will be giving a presentation about the federal designation of Lawetlat’la/Mt. St. Helens as a Traditional Cultural Property of the Cowlitz Tribe and Yakima Nation. This event is sold out.

View Event →
2018 Annual Potluck at Rice Northwest Rock and Mineral Museum
Aug
12
12:00 PM12:00

2018 Annual Potluck at Rice Northwest Rock and Mineral Museum

  • Rice Northwest Rock and Mineral Museum (map)
  • Google Calendar ICS

Join us at the Rice Northwest Museum of Rocks and Minerals for our annual potluck picnic, Sunday, August 12 at noon. Your $10 will go both to your day's museum admission and to your annual membership to the Rice Museum as a GSOC member. This year will be a great time to take advantage of this offer and treat yourself to a tour of this highly esteemed Pacific Northwest treasure.

Our speaker this year is Dr. Nick Famoso, John Day Fossil Beds National Monument Chief of Paleontology & Museum Curator, who will discuss the world-class John Day Fossil Beds. Nick's work has focused on the recovery of mammalian eco-systems after volcanic eruptions such as Mt. St. Helens and the Picture Gorge ignimbrite.

Picnic is potluck style, so board members will bring a main protein-based dish and general members may bring any type of side dish, dessert, or beverage (no alcohol). The Rice Museum is at 26385 NW Groveland Drive, Hillsboro, OR. Hope to see you there!

RSVP for the Potluck

View Event →
Lava Butte and Lava Lands Visitor Center (COGS Field Trip)
Jul
14
8:45 AM08:45

Lava Butte and Lava Lands Visitor Center (COGS Field Trip)

Our sister organization Central Oregon GeoScience Society (COGS) is inviting GSOC members as their guests on their field trip to "Lave Butte and Lava Lands Visitor Center." Lava Butte is a 7,000 year old cinder cone located on the flanks of Newberry Volcano. This field trip will be led by Daniele McKay and will focus on the volcanology and hazards of cinder cone eruptions. This trip is for COGS and GSOC members only.

View Event →
July Lecture: A Tail Between Two Cities: the Yellowstone Plume (Head and Tail) Between John Day and Burns, Oregon
Jul
13
7:30 PM19:30

July Lecture: A Tail Between Two Cities: the Yellowstone Plume (Head and Tail) Between John Day and Burns, Oregon

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

Emily Cahoon's talk will focus on volcanic deposits around the John Day Valley and further south to Burns, Oregon. This includes the Clarno Formation, John Day Formation, and lots of mid-Miocene lavas and tuffs. Also, there are unstudied Oligocene to mid-Miocene basaltic lavas and dikes exposed south and east of known PGB localities. These help to reevaluate Picture Gorge Basalt (PGB) distribution and to better understand evolution, mantle components, and possible petrogenetic connections among PGB, Steens Basalt, and the Strawberry Volcanics. Broadly, we will explore the proposed connections between the John Day Formation, the Columbia River Basalts, and the Yellowstone plume.

View Event →
Eastbank Bike GeoTour
Jun
23
10:00 AM10:00

Eastbank Bike GeoTour

  • 701 Southwest 6th Avenue Portland, OR, 97204 (map)
  • Google Calendar ICS

With cooler weather forecast for Saturday, ride with us along the Eastbank from the Portland's youngest rocks to its oldest. We will dine after at the Milwaukie Station Food Carts and Beer Garden. No geologic knowledge required.

This is a 3-hour moderately-paced bike ride (9 miles) with a return by MAX. (A shorter 5 mile route, with return by MAX, is also available.)  We will be starting from "Peace Sign Park" at NE Oregon and Interstate.

View Event →
June Lecture: A New Look at “Old” Tuffs at Newberry Volcano (Dr. Jeffrey Templeton)
Jun
15
7:30 PM19:30

June Lecture: A New Look at “Old” Tuffs at Newberry Volcano (Dr. Jeffrey Templeton)

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

Evaluating the Influence of Cascadia Subduction and the High Lava Plains on Magmatism at a Geologic Crossroads in Central Oregon. Our speaker Dr. Jeffrey Templeton is a Professor of Geology at Western Oregon University, where his research interests include igneous petrology, volcanology, and undergraduate geoscience education.

View Event →
May Lecture: Oregon's Slow Rotation Is Responsible for Earthquakes in NW Urban Corridor (Ray Wells, USGS)
May
11
7:30 PM19:30

May Lecture: Oregon's Slow Rotation Is Responsible for Earthquakes in NW Urban Corridor (Ray Wells, USGS)

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

Paleomagnetists — scientists who track the motions of continents from ancient magnetic field directions frozen into rocks — have long known that Oregon has been slowly rotating clockwise over geologic time. Today, GPS documents that the entire Pacific Northwest is rotating clockwise at a little less than 1 degree per million years, causing the Coast Range to move northward and push against slow-moving Canada. The northward push is responsible for crustal earthquakes on shallow faults in the Northwest urban corridor. Dr. Ray Wells has been a research geologist with the USGS for 40 years, where he used field geology, paleomagnetism, and GPS to understand the tectonic evolution and seismic hazards of active continental margins.

View Event →
April Lecture: Large, Abundant Landslides in the Western Columbia Gorge (and Some Still Active)
Apr
13
7:30 PM19:30

April Lecture: Large, Abundant Landslides in the Western Columbia Gorge (and Some Still Active)

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

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.

View Event →
83nd Annual Banquet: Ellen Morris Bishop to Speak
Mar
11
1:00 PM13:00

83nd Annual Banquet: Ellen Morris Bishop to Speak

Sorry registration is now closed. The Geological Society of the Oregon Country invites you to its 83rd Annual Banquet. Speaker Ellen Morris Bishop will present “Mountains out of Molehills: A Brief History of The Wallowas.” The banquet will be held March 11, 2018, at Ernesto’s Italian Restaurant. Doors to the banquet room open at 1:00 p.m. Buffet Luncheon at 1:30 p.m. Program will begin at 2:45 p.m.

View Event →
February Lecture: An Amateur's Guide to the Geology of Johnson Creek and Eastside Portland
Feb
9
7:30 PM19:30

February Lecture: An Amateur's Guide to the Geology of Johnson Creek and Eastside Portland

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

The Johnson Creek Watershed contains volcanoes, Missoula flood deposits, and the oldest rocks in the East Portland Metro. Though this dramatic geologic history is usually obscured by vegetation and development, the creek cuts a slice down through the geologic layer cake to reveal the rock formations underlying Gresham, Southeast Portland, and Milwaukie. Paul Edison-Lahm will lead this virtual tour of the Watershed and give tips for exploring Portland's Eastside.

View Event →
January Lecture: GSOC's Year in the Field
Jan
12
7:30 PM19:30

January Lecture: GSOC's Year in the Field

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

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

  • Larry Purchase: “GSOC Rock Quarry and Gravel Pit Field Trip,” June 11-12

  • Sheila Alfsen, “Mt. St. Helens Helicopter Tour,” September 9

  • Paul Edison-Lahm, "Downtown PDX Building Stone Tours," June 24, Oct 7

View Event →
GSOC 9th Annual Holiday Party and Potluck
Dec
16
6:00 PM18:00

GSOC 9th Annual Holiday Party and Potluck

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. 
 

View Event →
Friday Night Lecture — Leslie Moclock, "Oregon’s Gems: The Geologic Stories Behind Beautiful Stones"
Nov
10
7:30 PM19:30

Friday Night Lecture — Leslie Moclock, "Oregon’s Gems: The Geologic Stories Behind Beautiful Stones"

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

Oregon’s volcanic history has given us more than mountains. Come learn how sunstones and opals feature in our state’s geologic past. Leslie Moclock has been the curator at the Rice Northwest Museum of Rocks and Minerals since 2014. She holds a MS in Geology from University of California-Davis and a BA from Amherst College.
(Geode photo by Jeff Scovil, courtesy Rice Northwest Museum of Rocks and Minerals.)

View Event →
Friday Night Lecture — Jason McClaughry: New Findings in the Middle Columbia Basin
Oct
13
7:30 PM19:30

Friday Night Lecture — Jason McClaughry: New Findings in the Middle Columbia Basin

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

The Middle Columbia Basin of north-central Oregon lies across the axis of the High Cascades volcanic arc, stretching from Cascade Locks east to Biggs and southward from the Columbia River to Tygh Valley. Ongoing Geologic mapping in the basin by the Oregon Department of Geology and Mineral Industries is providing new insight into the middle Miocene to present volcanic and structural development of the region. Jason McClaughry, DOGAMI Eastern Oregon Regional Geologist, will summarize local Columbia River Basalt Group stratigraphy, discuss new geochemical data and geochronologic constraints on late Miocene to Pleistocene Early to Late High Cascades Volcanic Rocks, and characterize the major structural trends in the region. 

View Event →
Downtown PDX Geology North Tour
Oct
7
1:00 PM13:00

Downtown PDX Geology North Tour

  • Pioneer Square (across from Pioneer Courthouse) (map)
  • Google Calendar ICS

We can't get enough of exploring Downtown Portland Building Stone! If you missed our Spring tour or just want to see more interesting buildings, join us for this two-hour walking tour of more of downtown Portland's geological mysteries and oddities. This tour is open to public. We will be meeting at Pioneer Courthouse Square, across from the 6th Avenue Pioneer Courthouse entrance. 

View Event →
Johnson Creek Watershed Geology Science Pub
Sep
21
5:30 PM17:30

Johnson Creek Watershed Geology Science Pub

The Johnson Creek Watershed contains volcanoes, Missoula flood deposits, and the oldest rocks in the Portland Metro. Though this dramatic geologic history is usually obscured by vegetation and development, the creek cuts a slice down through the geologic layer cake to reveal the rock formations underlying Gresham, Southeast Portland, and Milwaukie. Grab a pint at the Eagle Eye Tavern and find out more at this science talk, by the GSOC's own Paul Edison-Lahm. This is a Johnson Creek Watershed Council event. Register here. 

View Event →
Mt. St. Helens Helicopter Tour
Sep
9
10:00 AM10:00

Mt. St. Helens Helicopter Tour

The Geological Society of the Oregon Country will host a one-day helicopter field trip of Mt. St. Helens. The helicopter tour is approximately 40 minutes of spectacular scenery as you fly over both the devastated area from the 1980 eruption and the crater itself. An educational presentation by Sheila Alfsen will precede your tour so that you can recognize and interpret the landscape in light of the greatest volcanic event in recorded U.S. history.

This trip limited to GSOC members and their guests only. Become a member today! 

View Event →
Friday Night Lecture: Teaching and Doing Geology in Southern Oregon
Sep
8
7:30 PM19:30

Friday Night Lecture: Teaching and Doing Geology in Southern Oregon

  • Cramer Hall, Portland State University (map)
  • Google Calendar ICS

Frank Hladky, Oregon Registered Geologist and Geology Instructor will discuss Getting the Science Right: Teaching and Doing Geology in Southern Oregon. Teaching geology to youth requires clarifying the philosophy of rational thought. Geology, like other sciences, relies on evidence to substantiate interpretations. Utilizing vignettes from geological field studies in southern Oregon, Mr. Hladky shows how multiple lines of evidence leads to an understanding of the natural world with greater clarity.

View Event →
GSOC President’s Field Trip: Eclipse! (and More)
Aug
18
to Aug 21

GSOC President’s Field Trip: Eclipse! (and More)

Registration now open. Limited to GSOC members and their guests only. This field trip, organized by GSOC President Rik Smoody, will focus on the geology of the Cascades and will climax in the total eclipse of the sun on the morning of August 21. It will be held at a private property in Mill City, Oregon, and will be limited to 48 GSOC members and their guests and 12 vehicles. Cost $80 per person. 

View Event →
Annual Picnic
Jul
16
12:00 PM12:00

Annual Picnic

This year’s GSOC picnic will be held at the farm belonging to GSOC Past President Janet Rasmussen and her husband Doug Rasmussen. It is open to GSOC members only. It will be held at 5401 NE Riverside Drive, McMinnville, Oregon. If you are coming, bring $5 a head to offset production costs, your favorite picnic chair, your favorite beverage and a side dish or dessert. Janet will be providing hamburgers and veg hamburgers, buns and condiments. Games will include croquet and billiards.

Become a GSOC member today!

View Event →