GSC fieldwork in the New Liskeard area in 2001 consisted of excavating trenches into two kimberlites on the Seed property and several trenches down-ice. The Seed kimberlite is overlain by 5.5 m of brown and grey till and the subcropping surface is striated, indicating ice flow was towards the south (175°). A previously undiscovered kimberlite, the Triple B kimberlite, approximately 500 m east of the Seed kimberlite, was excavated for the first time. This kimberlite is overlain by 2 m of till. Kimberlite and till down-ice were sampled to determine the mineralogical and geochemical signature of the kimberlite and to document glacial dispersal patterns. Kimberlite boulders from local ('down-ice') gravel pits were also collected to determine if the Seed or Triple B kimberlites are the source of the boulders in these eskers. Samples of drill core from two kimberlites (95-1 and 95-2) discovered by Sudbury Contact Mines Ltd. were collected for detailed mineralogical studies.
2005-11-07 |