Sill Injectites w/ Shattered Fills at 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...
Scabland Evolution: Building on Perron & Venditti (2016)
In their 2016 Nature News & Views article titled "Megafloods downsized", Perron and Venditti remind us that the sizes of individual...
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...
Predicting liquefaction extent in the Yakima Fold Belt
Geologists have long debated how large of an earthquake Yakima Fold Belt faults can produce. Some claim these shallow (<10km), intraplate...
Incremental Growth of Composite Clastic Dikes
Incremental growth of a sheeted clastic dike occurs over time, megaflood by megaflood. The figure above shows the growth of a composite...
Truncations Control Clastic Dike Geometry
Truncations control dike width and apparent taper direction. What appears to be an upward-tapering, upward-injected clastic dike sourced...
Clastic Dikes Form Polygonal Networks
Networks of Pleistocene clastic dikes are sometimes visible on bladed slopes or surfaces that have had all vegetation removed. Aerial...
Evidence for Long Periods Between Fillings in Sheeted Clastic Dikes
Crosscutting relationships establish the order of events in a sheeted clastic dike exposed near TriCities, WA. 1.) Injection of yellow...
