
Hydraulic Fracture Efficiency
Synthetic hydraulic fractures in Jell-O using a straw and colored syrup (left) and a natural one in the Touchet Beds (right). Well...

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...