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X-WR-CALDESC:Events for Ice Age Floods Institute
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DTSTART;TZID=America/Los_Angeles:20251101T100000
DTEND;TZID=America/Los_Angeles:20251101T170000
DTSTAMP:20260425T040039
CREATED:20250616T201630Z
LAST-MODIFIED:20251025T175430Z
UID:40318-1761991200-1762016400@iafi.org
SUMMARY:Field Trip East of Coulee City\, WA - Updated
DESCRIPTION:Karl Lillquist will lead “East of Coulee City” field trip on the day after Halloween. \nWe will meet at the Coulee City Campground at 10am.  Stops will include: 1) Coulee monocline; 2) Hartline Basin expansion bar; 3) top of Hartline Hill; 4) mid-slope Hartline Hill; and 5) Hartline Basin scablands. \nQuick description:  Topics will center around Ice Age flooding associated with Glacial Lake Missoula in the area east of Coulee City.  Trip will begin on the peninsula on the north end of Coulee City Community Park.    \nDetailed schedule and the topics to be covered: \n\n 10:00  Stop 1—Coulee City Community Park—Topics: Bedrock & structural geology; weather & climate; General patterns of Glacial Lake Missoula floods and the Okanogan Lobe of the Cordilleran Icesheet; Banks Lake.   \n10:45  Depart\n11:00  Stop 2—Coulee Monocline —Topics:  Monoclines & homoclines; Age of Coulee Monocline and its relationship to Ice Age floods & Hartline Basin; Historical orchards\, highways & railroads.\n11:45  Depart\n12:00  Stop 3—Hartline Basin Expansion Bar—Topics: Bretz in the Hartline Basin; Expansion bars; Soils atop expansion bar.\n12:45  Depart\n1:00     Stop 4—Top of “Hartline Hill”—Topics: Maximum flood limit; Loess-based soil characteristics\, origins & age; Water erosion & loess;\n1:45     Depart\n2:00     Stop 5—Mid-slope on “Hartline Hill”—Topics: Unnamed canyon & fan; Possible floodwaters over “Hartline Hill”.\n2:45     Depart\n3:00     Stop 6—Hartline Basin Scablands—Topics: Scablands & Bretz;  Floods\, erosion & scablands; Giant pendant bars;  Other possible floodwater sources in Hartline Basin\n4:00     Depart for home\n\nLogistics: \n\nThis trip is free and open to the public.  There is no need to register.\nAfter Stop 1\, we will drive on a mix of paved and good quality gravel roads.  Passenger cars should be fine on these roads.\nI encourage you to consider carpooling.  This will reduce the time it takes to get us all together at each stop plus will reduce our carbon footprint.   \nWe will take short walks at Stops 2\, 3 and 6.  By short\, I mean 0.25 mi or less at each stop.  There will be a bit of somewhat steep\, uneven terrain at each of the stops.  We will also need to cross a barbed wire fence at Stops 2 and 6.\nNo restroom or picnic facilities are available along our field trip route after Stop 1.  Therefore\, you will need to use the great outdoors if you need to go.  Plan on eating lunch/snacks on the road or at the stops.  There will not be a formal lunch stop.\nDogs and kids are fine to bring as long as they are well-behaved.\nDress for the weather.  November weather here can be sunny and mild to rainy\, windy & chilly.  Our first two stops will be especially exposed to a possible north wind. \nA field guide is posted on my CWU website at https://www.cwu.edu/academics/geography/_documents/karl-lillquist.php.  Scroll down the page to “Field Guides”.  You will find it under “East of Coulee City”.  Feel free to download and bring it on the field trip in digital format or print it out.\nThe Ellensburg Chapter of the Ice Age Floods Institute will also provide ~40 hard copies of the field guide for the trip.  There is no cost for the field guides.  However\, if you are not a member of the Ellensburg Chapter\, please consider making a donation to the chapter to help cover the costs of the field guides (each cost ~$15/each). \n\nField Trip Liability Form\nPlease print and fill out the attached field trip liability release form\, and give it to one of the Ellensburg Chapter IAFI officers at the field trip.  We will also have hardcopies of the liability release form if you need them.  Thank you! \nQuestions?\nEmail me at lillquis@cwu.edu or leave a phone message at 509 963-1184.  Emails are best as I only check that phone a couple of times each week.  A heads up: I may be away from phone  & email between 29 October to 1 November.    \nI hope to see you Saturday 1 November!\nKarl L.[integrate_google_drive id=”5″]
URL:https://iafi.org/event/field-trip-east-of-coulee-city-wa/
LOCATION:WA
CATEGORIES:Ellensburg,Field Trip
ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Logo-Ellensburg-HighRes-x200.jpg
ORGANIZER;CN="Karl Lillquist":MAILTO:outreach@geology.cwu.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251104T183000
DTEND;TZID=America/Los_Angeles:20251104T200000
DTSTAMP:20260425T040039
CREATED:20251030T064752Z
LAST-MODIFIED:20251030T064752Z
UID:40940-1762281000-1762286400@iafi.org
SUMMARY:EVOLUTION OF THE COLUMBIA RIVER SYSTEM
DESCRIPTION:We have always assumed that the Columbia River and its tributaries have been the same for many millions of years. The Earth is constantly fooling us like that.  In reality most river systems are dynamic\, and the Columbia River is no exception. We will explore how it has changed over the past 16 million years.  We’ll see how in earlier times locations such as like Yakima\, Prosser and Benton City would have been on the Columbia River\, while the Tri-Cities would have been left high and dry. \nThe Columbia River system is one of the great river systems of North America\, draining much of the Pacific Northwest\, as well as parts of the western United States and British Columbia. The river system has had a long and complex history\, slowly evolving over the past 17MY The Columbia River and its tributaries have been shaped by flood basalt volcanism\, Cascade volcanism\, regional tectonism\, and finally outburst floods from Glacial Lake Missoula. The most complex part of river development has been in the northern part\, the Columbia Basin\, where the Columbia River and its tributaries were controlled by a subsiding Columbia Basin with subtle anticlinal ridges and synclinal valleys superimposed on a flood basalt landscape. After negotiating this landscape\, the course to the Pacific Ocean led through the Cascade Range via the Columbia Trans-Arc Lowland\, an ancient crustal weakness zone that separates Washington and Oregon. The peak of flood basalt volcanism obliterated the river paths\, but as flood basalt volcanism waned\, the rivers were able to establish courses within the growing fold belt. As the folds grew larger\, the major pathways of the rivers moved toward the center of the Columbia Basin where subsidence was greatest. The finishing touches to the river system\, however\, were added during the Pleistocene by the Missoula floods\, which caused local repositioning of river channels.
URL:https://iafi.org/event/evolution-of-the-columbia-river-system/
LOCATION:The Reach Museum\, 1943 Columbia Park Trl \, WA\, Richland\, WA\, 99352\, United States
CATEGORIES:Lake Lewis,Meeting,Presentation
ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Stephen-Reidel.jpg
ORGANIZER;CN="Lake Lewis Chapter":MAILTO:lakelewis@iafi.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251115T093000
DTEND;TZID=America/Los_Angeles:20251115T150000
DTSTAMP:20260425T040039
CREATED:20251025T173423Z
LAST-MODIFIED:20251025T173537Z
UID:40787-1763199000-1763218800@iafi.org
SUMMARY:Barker Canyon Giant Cave Arch Rockshelter Field Trip - Sat. Nov. 15th
DESCRIPTION:Join Outing Coordinators Mark Amara\, Geologist and Gene Wing of the Lower Grand Coulee Chapter on Saturday November 15th for a 3-mile hike to visit the Barker Canyon Giant Cave Arch Rock Shelter Ice Age Floods Feature in the Upper Grand Coulee\n \n\n\nDate: Saturday November 15th\, 2025\nStart time: 9:30 am\nMeeting Place: We will meet at the Dry Falls Visitors Center parking lot at 35661 Hwy 17 North\, Coulee City\, 99115 and plan to leave at 9:30 AM sharp and drive to Barker Canyon \n\nDRIVING DIRECTIONS:       \n\n\n\nPlease see the attached map or coordinates of the Rock Shelter are: 119.193029 degrees Latitude – 47.89900 degrees Longitude \n\n\nFees: A Discover Pass is required\nWhat to bring: Lunch\, drinks\, snacks\, appropriate clothing and footwear\, camera\, etc.\n\n[integrate_google_drive id=”2″]
URL:https://iafi.org/event/barker-canyon-giant-cave-arch-rockshelter-field-trip-sat-nov-15th/
LOCATION:Dry Falls Visitor Center\, 35661 HWY 17 North\, Coulee City\, WA\, United States
CATEGORIES:Field Trip,Grand Coulee
ATTACH;FMTTYPE=image/png:https://iafi.org/wp-content/uploads/Barker-Canyon-Giant-Cave-Arch-Rockshelter.png
ORGANIZER;CN="Lower Grand Coulee Chapter":MAILTO:grandcoulee@iafi.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251117T190000
DTEND;TZID=America/Los_Angeles:20251117T203000
DTSTAMP:20260425T040039
CREATED:20251027T023810Z
LAST-MODIFIED:20251027T154548Z
UID:40899-1763406000-1763411400@iafi.org
SUMMARY:Puget Lobe Lecture: Jeff Tepper on the Initiation of the Cascade Arc
DESCRIPTION:  \n  \n            Dr. Jeff Tepper\nThe 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.  \n 
URL:https://iafi.org/event/puget-lobe-lecture-jeff-tepper-on-the-initiation-of-the-cascade-arc/
LOCATION:Bellevue College Building T Room 117\, 3000 Landerholm Cir SE\, Bellevue\, WA\, 98007\, United States
CATEGORIES:Lecture,Meeting,Puget Lobe
ORGANIZER;CN="Puget Lobe Chapter":MAILTO:pugetlobe@iafi.org
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