Clastic Dikes: Dispelling a Periglacial Origin
What Does Periglacial Mean? "Periglacial" is a term that packs a punch. Like "tundra" or "permafrost", it stands in for a full suite of...
Clastic Dikes at Metaline Falls, WA
Olaf P. Jenkins took these photos in 1924 near Metaline Falls, WA. They show Pleistocene-age clastic dikes intruding rippled...
Dry Hollow Site Geology near Clyde, WA
Outcrop sketch: For large outcrops, I will take a panoramic photo, draw a quick map, and make a sketch in my field book. If I have the...
Sanpoil-style Syn-sedimentary Deformation
Undeformed flood package. A single, meter-thick Missoula flood bed formed by when a rush of water, released out of western Montana,...
Calcrete Field Trip 2021 - 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 2021 - Liesle Rd
Park vehicles carefully along the roadside or in nearby WDFW lots. Touchet Beds unconformably overlie a calcrete at Liesle Road. At least...
Sill Injectites w/ Shattered Fills - Indian Creek, WA
At Indian Creek, WA I discovered 3 breccia-filled sills injected into varved Glacial Lake Columbia sediments, each extending for more...
Dike-Sill-Dike Geometry in a Fluid-Driven, Sediment-filled Fracture
Coarse Grained Layers Behave as Efficient Pathways - Coarse grained layers appear to behave as efficient pathways during propagation of...
Paper Locations
Nearly 100 articles published over the past century mention clastic dikes in the megaflood region. Most did not focus on the dikes, but...
Two Generations of Clastic Dikes in Touchet Valley, WA
An excellent outcrop located along Touchet River Road North, some 13 miles north of Touchet, WA exposes two sets of clastic dikes. The...
