Business
Promising New Exploration Data
Promising New Exploration Data.
About this update from Karelian Diamond Resources Plc
[{"type":"text","content":"\n \nKarelian Diamond Resources plc\n\n(“Karelian Diamonds†or “the Companyâ€)\n\n14 November 2017\n\nPROMISING NEW EXPLORATION DATA\n\n\n\nElectron Microprobe Results Indicate Increasing Proximity to the Diamond Source\n\n\n\nResults Further Increase the Diamond Prospectivity\n\n\n\nThirty Positive Mantle-derived Garnet Minerals Recovered (4 “G10†and 26 “G9â€)\n\n\n\nKarelian Diamond Resources plc (“Karelian Diamondsâ€) (AIM: KDR), is pleased to announce positive Electron Microprobe results on the three samples showing high indicator mineral counts, as reported on 25th September 2017.\n\nThese results indicate not only that the likely diamond source is very close to the current exploration area, but also that the potential of the kimberlite source to host diamonds is higher than previously indicated.\n\nThe new results show a significant increase in counts of mantle-derived garnets: thirty grains in 135kg of samples versus twenty-six grains in the previous 990kg of samples taken in the diamond target area. Of the thirty new garnet grains eight are also in the larger size range (0.5 to 1.0mm) compared with only one of the twenty-six previous garnet grains; an increase in grain size is indicative of a shorter transport distance from source. Mantle-derived garnets tend to be formed at similar pressures and temperatures as diamonds. \n\nThe ratio of harzburgitic or \"G10\" garnet grains, known indicators of diamond prospectivity, versus lherzolitic \"G9\" grains has also increased two-fold, from 6.2% in previous sampling to over 13% (4 of 30 grains) in present sampling.\n\nThese new samples yield 53% of the total mantle derived garnets (G10’s + G9’s) from only 12% of the total material sampled to date in this area (135kg of a total of 1,125kg). The concentration of total garnet grains in the new samples has increased to 22.2 per 100kg from just 2.1 per 100kg previously, an order of magnitude increase which indicates increasing proximity to the kimberlite source.\n\nThese results are supported by observations of other indicator minerals. The kimberlitic chromite grain counts also increased from 2.3 per 100kg to 7.4 per 100kg, indicating increasing proximity to source and significantly the percentage of chromite grains lying within the diamond inclusion field, indicating their growth in association w...