Book Description
The investigation summarized in this report was designed as a case study regarding the frequency & chemistry of kimberlite indicator minerals in Pleistocene glacial sediments from a kimberlite field and a vertical profile of data that could be compared to surface till data. The study site was located near Smeaton in central Saskatchewan underlain by Lower Cretaceous sedimentary rocks interbedded with extrusive kimberlitic debris. Cores were obtained from the upper part of the Cretaceous sequence and from the overlying Quaternary sequence, and laboratory studies were carried out on the core lithology, matrix carbonate content, mineralogy, and geochemistry. Results are presented regarding sediment unit descriptions, bulk mineralogy of sediment-derived concentrates, kimberlite indicator minerals, visible gold, geochemistry, and borehole logging. The provenance of the sedimentary sequences is discussed along with the implications for diamond exploration.