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  • November 2024

  • Wed 13

    Geology Alive: Understanding Geologic Hazards in the Columbia Gorge

    November 13, 2024 @ 6:00 pm - 8:30 pm PST
    Columbia Center For the Arts 215 Cascade Ave, Hood River, OR, United States

    The great scenic beauty of the Gorge owes much to the geological processes that have shaped it.  Earthquakes, volcanic eruptions, landslides and debris flows still occur in the area today, and they can pose hazards to Gorge residents and visitors.  What is the scope, severity, and likelihood of these hazards?  How do scientists use evidence from the geological and historical past to evaluate the hazards, and how do they use models to forecast future hazards and inform our efforts to prepare for them? Join Dr. Richard “Dick” Iverson, Scientist Emeritus at the U.S. Geological Survey’s Cascades Volcano Observatory, as he digs into the geological hazards of the Gorge—and explains why they don’t discourage him from living here! GET TICKETS HERE When: NOVEMBER 13th, 2024 | Doors 6pm, Show 7 pm Where: Columbia Center For the Arts, 215 Cascade Ave, Hood River, OR This event will be livestreamed on our Givebutter page: https://givebutter.com/geologyalive Doors open at 6 pm, show starts at 7 pm. * We encourage people to take their seats by 6:45. * Seats not filled by 6:45 will be made available to our waitlist. * Event tickets are non-refundable. Richard (Dick) Iverson spent 34 years as a research scientist at the U.S. Geological Survey’s Cascades Volcano Observatory in Vancouver, Wash., and he remains affiliated with the observatory as a scientist emeritus. His work there has focused mostly on the dynamics of landslides, debris flows, and volcanic eruptions, with particular emphasis on evaluating hazards downstream from Cascades volcanoes.  Iverson grew up in Iowa, received his Ph.D. from Stanford University, and moved from Vancouver to Hood River in 2018.  

  • January 2025

  • Mon 6

    Northern Ice

    January 6, 2025 @ 7:00 pm - 8:30 pm PST
    Bellevue College Building T Room 127 3000 Landerholm Cir SE, Bellevue, WA, United States

    (2 Dec 2024)   Grace Sherwood Winer is a geologist and explorer who has done extensive studies on the melting of glacial ice in the Arctic.  She will present present her work on the islands of Svalbard and Iceland at our meeting on 06Jan2025 at 7:00pm at Bellevue College, Building B, Room 104.  Note room change! This will be an In-person lecture and livecast via Zoom. Click on Zoom link:   https://us02web.Zoom.us/j/82985244730 Bellevue College, Bldg B, Rm 104

  • Thu 16

    Richard B. Waitt – The “Debacle Which Swept the Columbia Plateau” 100 years on

    January 16, 2025 @ 6:45 pm - 8:00 pm PST
    Tualatin Heritage Center 8700 SW Sweek Drive, Tualatin, OR, United States

    J Harlan Bretz "It was a debacle," wrote J Harlan Bretz in 1923, that carved Washington's Channeled Scabland. This prescient finale today brings to mind debacles geologic, personal and periodic. The cataclysm in Bretz's "Spokane flood" initiated a famous controversy. Published arguments against great Scabland flood erupted in the 1920's and raged on into the 1940's--critics by various more conventional schemes calling for less water over more time. As Bretz had almost no published support, it seemed to many his personal debacle. Yet re-reading the early reports, and recently the summary field notes, I sense that by the extraordinary field evidence he had documented throughout the region, Bretz knew all along that his 'catastrophysm' would prevail. After J.T. Pardee showed in 1942 that huge glacial Lake Missoula had discharged abruptly. Bretz and colleagues in 1956 show with the old evidence--and with stark new evidence in giant current dunes adorning many gravel bars--that water from glacial Lake Missoula had indeed carved the 'Channelled Scabland'. With detailed geomorphic field evidence they skewer Bretz's critics--this in turn becoming their personal debacle. waittThe story takes a more gradualistic turn with discovery that Lake Missoula drained periodically. In his final Scablands paper in 1969, Bretz, by geomorphic evidence counts seven floods at most. But hardly a decade later, new stratigraphic evidence was showing that Lake Missoula released scores of giant floods during the last glaciation alone. These outbursts were both periodic and gigantic by degrees, truly colossal and coming decades apart when the damming Purcell Trench lobe was thick, but as the ice gradually thinned diminishing to coming only a decade or a few years apart, and at the end one year apart. This 'jokulhlaups' idea erupted new controversy, this one also lasting more than two decades. If it has simmered down lately, this argument is also being settled by field evidence. If Missoula floods were numerous and periodic during last-glacial marine-Isotope stage 2 (25-15 thousand years ago), what happened during seemingly equally deep glaciations of AR-isotope stages such as 6 and 12 (140-440 thousand years ago)? So far we know of no supporting field evidence--only scattered field sites that suggest one gigantic flood far back, perhaps a million years ago. It will be for today's young scientists to decipher this and other remaining enigmas. Thursday, January 16, 2025, In Person 6:45PM PST Tualatin Heritage Center, 8700 SW Sweek Drive, Tualatin, OR 97062 ALSO Simultaneous Live ZOOM from THC if you cannot attend the in-person THC meeting yourself. Click here for Zoom meeting, Meeting ID: 869 4651 3479 Passcode: 322382.

  • Wed 29

    New Interpretations of Old Strandlines

    January 29, 2025 @ 7:00 pm - 8:00 pm MST
    Montana Natural History Center 120 Hickory Street, Missoula, MT

    It’s that time of the year! Time to contemplate ice ages and glacial lakes. Time for the Glacial Lake Missoula Chapter of the Ice Age Floods Institute’s Cabin Fever Lecture!  Warm up your curiosity about those iconic strandlines we can see from town with a lecture from renowned geologist James W. Sears. New “LiDAR ” mapping techniques may imply that the famous Lake Missoula strandlines on Mount Sentinel and Mount Jumbo record only one draining of the ice-age lake. The draining coincided with massive erosion at the bottom of the lake, but passive lowering of lake level at the top, marked by short-term strandlines cut a few inches into thin colluvial soil on the mountainsides. About the Instructor: Dr. James W. Sears received his PhD from Queen’s University, Canada, in 1979, and has taught at the University of Montana since 1982. This is a live event that will not be recorded or streamed.

  • February 2025

  • Tue 11

    The Ancient Ice Age Floods in the Pacific Northwest

    February 11, 2025 @ 7:00 pm - 8:30 pm PST
    Wenatchee Valley Museum and Cultural Center 127 S. Mission, Wenatchee, WA, United States

    Dr. Scott burns will talk about ancient glacial flooding that preceded the most recent Glacial Lake Missoula Floods in the Pacific Northwest

  • Wed 12

    Google Earth & the Field Notes of Bretz & Pardee

    February 12, 2025 @ 6:00 pm - 7:00 pm PST
    North Spokane Library 44 E Hawthorne Rd, Spokane, WA

    Join Glenn Cruickshank as he shares a look at 16 years of J Harlen Bretz’s field notes about the historic ice age floods and 30 years of Joseph Pardee’s USGS field notes, now publicly available for the first time in 100 years and visible through Google Earth. This presentation will introduce you to a large and growing collection of historic notes by early ice age floods investigators, but if you can't make the presentation you can explore much of the material on Nick Zentner's CWU webpage. Presentation will be by Glenn Cruickshank, Vice President, Cheney-Spokane Chapter, IAFI, Liberty Lake Presented in partnership with Ice Age Floods Institute (IAFI) (Registration required on SCLD website. Registration opens at 6:00 PM Wednesday, January 15, 2025.)

  • Tue 18

    Oregon Gold – This valuable mineral is brought to you by Geology

    February 18, 2025 @ 6:45 pm - 7:30 pm PST
    Tualatin Heritage Center 8700 SW Sweek Drive, Tualatin, OR, United States

    Geologist and professor, Sheila Alfsen, will show how geologic processes that occurred in Oregon paved the way for the discovery and utilization of gold in our state. Sheila is an Adjunct Instructor of Geology at Portland State University, Chemeketa Community College, and Linn-Benton Community College. Tuesday, February 18, 2025, In Person 6:45PM PST at Tualatin Heritage Center, 8700 SW Sweek Drive, Tualatin, OR 97062 Simultaneous Live ZOOM from THC if you cannot attend the in-person THC meeting yourself. Click here for Zoom meeting, Meeting ID: 869 4651 3479 Passcode: 322382

  • Wed 26

    Take a Bee-Line to the Wild Side

    February 26, 2025 @ 5:30 pm - 6:30 pm PST
    White Salmon Valley Community Library 77 NE Wauna Ave, White Salmon, WA, United States

    Wild bees are a diverse group of bees that are important pollinators for many crops and plants. The U.S. has roughly 4,000 species of wild bees that pollinate thousands of plants, including many common foods like apples and almonds. Wild bees, along with many pollinators, are declining around the world due to land changes, human activities, pesticide use, and other threats. Despite growing concern about population declines, there are limited data about wild bees. You can help wild bees by providing nesting boxes, restoring pollinator-friendly habitats, and encouraging legislation that protects bees. In his “Take a Walk on the Wild Side” presentation, Steve Castagnoli will provide an introduction to the natural history of wild bees in the Pacific Northwest.  Steve Castagnoli is an apprentice level melittologist with the Oregon Bee Atlas. The Oregon Bee Atlas Master Melittologist Program trains and equips citizen scientists to: a) create and maintain a comprehensive and publicly accessible inventory of the state’s native bees and their plant-host preferences, b) to educate Oregonians on the state’s bee biodiversity and c) to conduct an on-going survey of native bee populations in order to assess their health. Specimen records are added annually to newly digitized historic records from the Oregon State Arthropod Collection to build the first comprehensive account of the native bee fauna of Oregon.  

  • March 2025

  • Tue 4

    Terroir and the floods

    March 4, 2025 @ 7:00 pm - 8:30 pm PST

    (12Dec24) Scott Burns is back in March to talk about the impact the Ice Age Floods had on vinticulture in the Pacific Northwset.  Join us as Scott explains how the Floods influenced the regional properties of Northwest soils and ultimately made the Pacific Northwest one of the prime wine producing regions in the United States. The "virtual wine tasting" will happen at our chapter meeting 04Mar2025 at 7:00pm at Bellevue College, Building B ,ROOM 104.  This lecture will be in-person and livecast on Zoom. Click on Zoom link:   https://us02web.Zoom.us/j/82985244730 Bellevue College, Bldg B Rm 104

  • Fri 21

    Othello Sandhill Crane Festival

    March 21, 2025 - March 23, 2025
    Othello, WA WA, United States

    The 27th annual Othello Sandhill Crane Festival - March 21, 22, and 23! Founded in 1998, the Othello Sandhill Crane Festival highlights the spring return of Sandhill Cranes to the greater Othello area and the Columbia National Wildlife Refuge. Not only are there bird lectures and tours on all three days, but the Festival always incorporates many geology talks; and field trips into Flood Country. Please see the events brochure here: https://www.othellosandhillcranefestival.org/_files/ugd/00304c_e3ceea5f94c44279af5e6e7a1cd036d7.pdf?index=true General admission is $10 and covers lectures and activities at the School and Church. All other tours and activities priced as noted in the schedule along with general admission. Friday Night Featured Lecture - Bruce Bjornstad – The Grand Coulee Nowhere is the evidence for Ice Age Megafloods so dramatic and awe-inspiring than Grand Coulee. The evolution of Grand Coulee will be presented via a unique bird’s eye view of this unique 50-mile-long canyon. Evidence for dozens of megafloods through Grand Coulee, as recently as 15,000 years ago, will be examined. This Lecture is free to attend in the Red Room at 7 PM. Saturday, March 22 there will be several talks on geology at the Crane Festival.. Ice Age Floodscapes. Bruce Bjornstad tells of an appreciation of the huge scale of Ice Age Megafloods and the features they left behind are often hidden and lost at close range. An aerial perspective of dozens of different unique flood features will be presented to bring the immense power and magnitude of the Ice Age Floods into focus Coulees, Canyons, and Valleys, Oh My! Lloyd Stoess will present a somewhat tongue-in-cheek look at how scientists can’t always agree on the definition of landforms, like coulees. Coulees interlace the landscape of the channeled scablands of eastern Washington which were carved by the Ice Age Floods, but what really defines them and how do they differ from canyons and valleys? Coyote Canyon: A Mammoth Burial in Ice Age Floods Sediments. Gary Kleinknecht will introduce the audience to Columbian Mammoths, North America’s elephant. He will present evidence for the assertion that this specimen is buried in slack water deposits left by a series of huge floods which created temporary Lake Lewis in the southern Columbia Basin. The discovery of mammoth bones, the on-going excavation of the site, and the paleoenvironmental study at Coyote Canyon will also be discussed. Sunday, March 23, Geology Field Trips Mega Floods Through Wild Drumheller Channels Hike, 9:00 AM to 3:00 PM. $60.00. This moderately difficult 3-4-mile hike, led by geologist Bruce Bjornstad, will directly explore the flood channels (including the former path of the Columbia River), potholes, erratic, and streamlined basalt islands rimmed with towering 50’ basalt columns. One hundred years ago, J Harlen Bretz recognized this area as one of the most spectacular examples of Ice Age Flood erosion in the Channeled Scabland. Note that there will be no restrooms available on this hike. Bagged lunches are available for order on the registration form. This tour is six hours in length, so bring food, drink, and sturdy walking shoes. SONY DSC The Great Escape of Quincy Basin, 8:00 AM to 4:00 PM. $60.00. Join Lloyd Stoess and Ken Lacy on a tour to showcase some of the most impressive floodscape that they have ever shown. It will focus on the impact of flood waters escaping the Quincy Basin. Imagine 150 feet of water dropping 800 feet in less than 3 miles, we will see this at the Potholes Coulee. We will also visit places with particularly dramatic views in the Drumheller Channels, Frenchman Coulee, West Bar, and the Ephrata Fan. There will be no hikes but open-toed shoes will not be appropriate. There will be bathroom breaks along the way. This tour is about 8 hours from start to fin

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