Mineralogy of the Devonian basinal section at Marmot Cirque and MS data from Poachers Creek. Sections are directly correlative but exposed in two different thrust sheets along the SE margin of the Miette Platform.  Total % carbonate and detrital sediment determined with a carbonate bombe. TOC by LECO carbon analyzer. Note that the major MS excursions are directly related to decreased carbonate and increased detrital input.