A Review of Clastic Dikes Literature Relevant to Eastern Washington 1827-2020
My review and commentary on several dozen articles that mention clastic dikes in Eastern Washington and adjacent areas in Oregon and...
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...
