Geomorphology Brown Bag - Winter 2015
Tuesday 12 - 1 pm in Wilkinson 203
Willamette Valley Geomorphology

Explore the tectonics/structure, the river, the sediments, the soils, the vegetation, the people.

email Sarah to sign up to present

visit http://lists.oregonstate.edu/mailman/listinfo/geomorph to get on our weekly reminder list

Date Presenter Topic
Jan 6 2015


Resources on the Willamette Valley: Willamette Valley Atlas; Willamette Basin Explorer; Orr & Orr Chapter on the Willamette Valley

Jan 13 2015

Eric Kirby

Yeats paper on the Willamette valley.  It’s a long, data-rich paper, so focus on the introduction, the structure, and the discussion regarding the age and mechanism of valley subsidence. You can skim the descriptions of the different geologic units and leave those details for Jim in week 5.

Jan 20 2015

Lalo Guerrero

Bretz, J. Harlen 1969. The Lake Missoula Floods and the Channeled Scabland. The Journal of Geology, 77(5) 505-543. Additional reading: Bretz, J.Harlen 1923. The Channeled Scablands of the Columbia Plateau. The Journal of Geology, 31(8) 617-649.

1969_Bretz.pdf, 1923_Bretz.pdf
Jan 27 2015

Loren Davis

Geoarchaeology of the Willamette Valley ; Chapter 5 "The Willamette Valley" from Oregon Archaeology, pg 284-327 and Prehistory of the Lower Columbia and Willamette Valley, by Richard M. Pettigrew pg 518 - 529.

geoarcheaology.pdf, prehistory.pdf
Feb 3 2015

Jim O'Connor, USGS

Gravel Transport and the Willamette River: O'Connor et al, 2014. Geologic and physiographic controls on bed-material yield, transport, and channel morphology for alluvial and bedrock rivers, western Oregon. GSA Bulletin 126:377-397.

O'Connor_et al_GSAB_ Alluvial-and-Bedrock-Rivers.pdf
Feb 10 2015

Eric Kirby

Returning to the question of why the Valley is, well, a valley: Fuller, Willett & Brandon, 2006. Formation of forearc basins and their influence on subduction zone earthquakes, Geology 34:65-68.

Feb 17 2015

John Trimble

McNeil et al., 2000. Tectonics of the Neogene Cascadia forearc basin, GSA Bulletin 112:1209-1224.

Feb 24 2015

Na Hyung Choi

Evarts et al., 2009. The Portland Basin: A (big) river runs through it. GSA Today 19(9):4-10 doi: 10.1130/GSATG58A.1

Mar 3 2015

Mike Olsen, Civil & Construction Engineering

Three fancy algorithms for landslide detection using various forms of lidar data (with a side explanation of USGS 3D elevation plan)


Conner, J., & Olsen, M.J., (2014). “Automated quantification of distributed landslide movement using circular tree trunks extracted from terrestrial laser scan data,” Computers and Geosciences, 67, 31-39.

Leshchinsky, B., Olsen, M.J., & Tanyu, B. (2015).  “Contour Connection Method for Automated Identification and Classification of Landslide Deposits,” Computers and Geosciences, 74, 27-38. 

Sugarbaker, L.J., Constance, E.W., Heidemann, H.K., Jason, A.L., Lukas, Vicki, Saghy, D.L., and Stoker, J.M., 2014, The 3D Elevation Program initiative—A call for action: U.S. Geological Survey Circular 1399, 35 p., http://dx.doi.org/10.3133/cir1399.

TRB Mobile LIDAR Guidelines.  http://learnmobilelidar.com/

Mar 10 2015

Ashley Streig

Wells, RE, Weaver, CS & Blakely, RJ. 1998. Fore-arc migration in Cascadia and its neotectonic significance. Geology 26(8) 759-762.

Wells, RE & Simpson, RW. 2001. Northward migration of the Cascadia forearc in the northwestern US and implicaitons for subduction deformation. Earth Plantes Space 53:275-283.

Wells_etal_1998_Geology_ForeArcMigration.pdf, Wells_Simpson_2001_EPS_Cascadia-forearc.pdf