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...
How I Take Field Notes on Clastic Dikes
"You can tell the cut of a Geologist's jib by the state of his field book." Above is a page from one of my field books showing what data...
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...
Fracture Fillings at Weaver Pit, Walla Walla Valley, WA
College students with access to quality information on the geology exposed near their schools will cause Geology professors to raise...
Curious Clastic Dikes of the Columbia Basin (Reprint)
Reprint of this article: Cooley, S.W., 2015, The curious clastic dikes of the Columbia Basin (p. 91-92), in Carson, R.J., Many Waters:...
Investigating Effort
Their study consists of 83 locations in the Pasco Basin. In 1999, a group of senior geoscientists at the Hanford Nuclear Site, lead by...
Flood Count Controls Clastic Dike Width in Columbia Basin, WA-OR-ID
Pleistocene age clastic dikes in the Columbia Basin, WA grew incrementally by repeated injection of sediment into cracks. Injected...
Clastic Dikes: The Shape of Filled Fractures
There are 4 basic shapes taken by sediment-filled fractures. I classify them as "A", "AV", "V", and "X". Shape is dependent on the depth...
