

Sheeted Clastic Dikes in the Megaflood Region
The definitive article on clastic dikes in Eastern Washington. Origin, age, character, and distribution are discussed. Data driven research.

Paleoseismic Trenches in Eastern Washington
Locations of paleoseismic trenches and Quaternary faults in Eastern Washington. Trenches excavated across fault scarps, often visible in...


Correlating Measured Sections - White Bluffs, WA
I took a swing at correlating 26 of Kevin Lindsey's stratigraphic columns from White Bluffs (Lindsey, 1996, Appendix A). A couple day's...


Repeated Deformation - Lake Rufus Woods, WA
Shear stress at the base of the overriding flow is transmitted to the substrate. Soupy and clay-rich substrate material is partially...


Structureless Sandstone Beds - White Bluffs, WA
Structureless sand is fairly unusual in the geologic record. Sandy sediment deposited by flowing water always preserves bedforms....


Sanpoil-style Syn-sedimentary Deformation
Mud squirts. Mobilized lacustrine muds are dragged upward into an overriding sand bed deposited by a Missoula flood entering Glacial Lake...


Slide Planes, Mud Squirts & Diamicts in Upper Grand Coulee
Brian Atwater always makes you feel like a million bucks. He invited me to join a group of geologists meeting in the Upper Grand Coulee...


Calcrete Field Trip - Warden Canal
Directions - From Othello, drive north on Hwy 17 and turn R (east) on Hwy 170/Rd 8 SE at the '76 gas station toward Warden. Follow for...


Calcrete Field Trip - Coyan Rd
Directions - From the Cunningham Rd-Hwy 17 intersection at Othello, drive south 10.4 miles toward Scooteney Reservoir. Turn L (east) onto...


A Visit to Rich Chambers' Jocko Site - Western Montana
Last week I had the pleasure of a day in the field with Rich Chambers and Larry Smith. Rich did early work on Glacial Lake Missoula...