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4 events found.

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  • May 2025

  • Fri 2

    2025 IAFI Membership Meeting – Gorge-ous Gathering May2-3-4

    May 2, 2025 - May 4, 2025
    Columbia Gorge Discovery Center 5000 Discovery Dr., The Dalles, OR, United States

     Celebrating Ice Age Floods Institute's 30th Anniversary The annual IAFI Membership Meeting is coming to the Columbia Gorge this May 2-3, 2025, and all our members and their guests are cordially invited to come experience some of the best and most interesting features the Gorge has to offer. There’ll be opportunities to explore storied Gorge wildflowers and native plants, geology and winery field trips, whitewater rafting, a membership meeting/dinner and a presentation by the ever-entertaining Nick Zenter. Friday, May 2nd, will be action packed with activities during the day. Choose between a guided Spring Wildflower Walk, a Journey Through Terroir field trip, an Unveiling the Gorge field trip (repeated on Sunday, May 4). There are also opportunities available every day for full-day or half-day adventure whitewater raft trips on the Klickitat or White Salmon Rivers with Wet Planet Rafting, a local world-class rafting company. Friday evening will feature our members meeting and dinner, followed by an entertaining and informative presentation by the inimitable Nick Zenter exploring and geolocating J Harlan Bretz’s field notes.  Jim O'Connor Richard Waitt Saturday, May 3rd, will feature the main Ice Age Floods Gorge Geology Field Trip – Explore evidence of the Ice Age Floods in the Columbia Gorge led by USGS expert geologists Jim O’Connor and Richard Waitt. This  field trip will examine the geology of the Columbia River Gorge with emphasis on the effects of the Ice Age Missoula floods, examining key sites and discussing the latest research. Learn more about the Missoula Floods, explore dramatic flood landforms, and enjoy beautiful vistas, lunch at the Deschutes River Park (order a box lunch or bring your own), and a no-host afternoon recap at Maryhill Winery. Check-in begins each day at 8:00 AM at the Columbia Gorge Discovery Center Find more detailed information here There is also plenty to see and do in the Gorge to keep you fascinated and engaged if you can stay another day. Visit iconic Multnomah Falls (I-84 access only) and spectacular Vista House at Crown Point overlook. Visit Timberline Lodge, a stunning 1930’s CCC project, on the snowy upper flanks of Mt. Hood. Travel the Hood River Fruit Loop or ride the Mt Hood Railroad Hike one (or more) of the innumerable and spectacular Gorge hiking trails Take Windsurfing and Kiteboarding lessons or just watch the action Enjoy fine dining, artisan wineries, breweries, museums and shops throughout the Gorge. There’s so much more to see and do that we can’t even begin to list it all.

  • Mon 5

    Canceled 1.5 Million Years of Climate Data from the Antarctic Drilling Project

    May 5, 2025 @ 7:00 pm - 8:30 pm PDT

    (05Dec2024) The Mid-Pleistocene Transition (MPT), where the Pleistocene glacial cycles changed from 41 to ∼100 kyr periodicity, is one of the most intriguing unsolved issues in the field of paleoclimatology. Jerry McManus is an AGU Fellow who is Chair of Columbia University's Environmental School. He spent time in Antarctica as part in a European-led consortium project to drill down an existing drill hole to punch back another half-million years of climate data from ice in the Antarctic Ice Sheet. The goal of the project was to get a continuous ice record reaching back past the Mid Pleistocene Transition (MPT) to get a better perspective on the short cycle into the long cycle transition. At our May meeting, Jerry will present an early glimpse on what the team discovered.  The May 05 meeting will be held in Bellevue College, Room B104.  The program begins at 7:00 PM.

  • November 2025

  • Mon 17

    Puget Lobe Lecture: Jeff Tepper on the Initiation of the Cascade Arc

    November 17, 2025 @ 7:00 pm - 8:30 pm PST
    Bellevue College Building T Room 117 3000 Landerholm Cir SE, Bellevue, WA, United States

                    Dr. Jeff Tepper The Cascade volcanic chain, the world’s youngest continental arc, was “born” shortly after accretion of the  Siletzia oceanic terrane ~50 My ago.   That collision, which led to formation of the Olympics, terminated the  earlier subduction system and caused a portion of the subducting Farallon slab to break off.  When Cascade  magmatism began less than 5 My later, there was a new trench located outboard of Siletzia.  In this talk I will  present a new model, based on petrology, geochronology, plate motion reconstructions, and mantle tomography,  that explains how subduction was initiated so quickly and in a setting where the slab was young and hot and in  theory too buoyant to subduct.   

  • January 2026

  • Mon 5

    Puget Lobe Lecture: The Bonneville flood- the other flood!

    January 5 @ 7:00 pm - 8:30 pm PST
    Bellevue College Building T Room 117 3000 Landerholm Cir SE, Bellevue, WA, United States

    The Bonneville Flood was one of the largest floods on Earth. First discovered by G.K. Gilbert in the 1870s during his inspection of the outlet at Red Rock Pass, Idaho, it was rediscovered in the 1950s by Harold Malde and coworkers, leading to mapping and assessment of spectacular flood features along Marsh Creek, Portneuf River, and Snake River for over 1100 kilometers between the outlet and Lewiston, Idaho. The cataclysmic flood - from the rapid 115-meter drop of pluvial 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. Along its route the Bonneville Flood carved canyons and cataract complexes and built massive boulder bars. These flood features have been a rich source for understanding megaflood processes. Yet it still offers much more with new and developing techniques for hydrodynamic modeling and landscape analysis.

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