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.
Clastic Dikes: The Tops of Clastic Dikes
The tops of clastic dikes in the megaflood region appear five ways. 1.) Truncated at a bedding contact or an erosional surface 2.)...
Clastic Dikes: Sand Dikes Intruding Bedrock
Clastic Dikes in Basalt Bedrock Sheeted dikes with sandy fills intrude downward into Miocene Columbia River Basalt in the Walla Walla...
Clastic Dikes: Formed by Lateral Spreading?
Lateral spreads. A network of lateral spread fractures in pavement formed by an earthquake. Peru 1970. USGS photo. Lateral Spreading: A...
Clastic Dikes: Whence Upward Intrusion?
Upward tapering clastic dikes are very rare in the Touchet Beds and other Pleistocene-age deposits in the Channeled Scabland. Nearly all...
Clastic Dikes at Metalline Falls, WA
Olaf P. Jenkins took these photos in 1924 near Metalline 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...
Fracture Notes - In progress
What are cracks and fractures? How does hydraulic fracturing work? How does HF relate to sheeted clastic dikes? In this post, I reveal...
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...
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...
