Calcrete Field Trip - Hendricks Road at Eagle Lakes, WA (Revised Nov 2022)
Revised interpretation - I am revising my interpretation of the brown, cemented sediments at Hendricks Road. These same beds rest atop Elephant Mountain basalt at Saddle Mountains making them part of the Ringold Fm. They are overlain by a >20m-thick section of the Ringold sediments there. The beds are also preserved in pockets of the flood-scoured scabland at White Trail (Quincy Basin). At all three locations, the alluvial beds were deposited in low order stream valleys estab
Near and Far Field Hydrofracture in the Formation of Sheeted Clastic Dikes
Near field (blue) and far field (red) hydrofracture curves shown. During the hydrofracture period, fluid pressure drops as fractures propagate (crack volumes increase as they propagate). At the near field scale, pressure rises and falls with each new crack and fill. The far field curve represents mean fluid pressure during the same time, the curve shows a gentle decline towards O3, when fractures can no longer open. Near field and far field are concepts that I use to describe
