TOWARDS A COMPREHENSIVE GLOBAL MID-PROTEROZOIC CHEMOSTRATIGRAPHIC FRAMEWORK: CONTRIBUTIONS FROM NORTHERN BRITISH COLUMBIA
With that goal in mind, we have sampled and explored the Mid-Proterozoic lower Muskwa assemblage. Located in Northeast British Columbia, the basin is composed of over 6 km of generally unmetamorphosed, mixed carbonates and siliciclastics. The Lower Muskwa assemblage is thought to possibly be an equivalent to either the Purcell/Belt Supergroup or the Wernecke Supergroup. However its tectonic context is unknown and its age is poorly constrained to between 0.8 to 1.8 Ga. Our carbon isotope data find a limited range of -1‰ and +1‰, typical of Mid-Proterozoic carbonates. We also present a preliminary Sr chemostratigraphic framework, in addition to trace element and Rare Earth Element data.