31. MORGAN-R. HOWRISH
Information acquired: 2025
MORGAN-R. HOWRISH is an academic who published a paper in 2022 entitled Origin of Green Shales in the Devonian Swan Hills Formation, Alberta, Canada. MORGAN-R. HOWRISH published this work as part of a team: Howrish, Morgan R.. Here is a description of this work: Throughout its growth history, the Devonian Swan Hills Reef Complex at Swan Hills has been subjected to variably long episodes of subaerial exposure, storm events, strong wind, oceanic currents, base level fluctuations and/or a long post-depositional burial history. For nearly sixty years, several generations of carbonate specialists have invoked one or more of these mechanisms to explain the presence of fine-grained green shale sediment observed sporadically throughout the carbonate-dominated reef complex. Through core examination, petrography and geochemical analysis, this study proposes a new model which reinterprets green shale from the above processes to a coproduct of dolomitizing and potentially non-dolomitizing fluids. The terrigenous clays are suggested to be sourced from underlying clastic formations, in particular, the Watt Mountain Formation, and advected upwa.