Figure C-1. This map, taken from Braden (2011), shows the arctic ice road that extends north from Yellowknife.
Figure B-1. Cross section of the Slave craton, constructed from surface geology, geophysics, and samples (mantle rock and diamond) provided by kimberlite eruptions and mining operations. Much of the detailed structure and age information between 30 and 250 km depths is only possible because suites of diamonds have been analyzed. Simplified from Helmstaedt (2009).
Figure 30. The superior quality of Diavik’s production will ensure profitability through 2024. Photo courtesy of Rio Tinto Diamonds.
Figure 29. UV-Vis-NIR absorption spectra (offset for clarity) showed four features affecting the Diavik diamonds’ color: absorptions due to cape bands, vacancy clusters, the 550 nm broad band, and hydrogen-related defects.
Figure 28. DiamondView imaging showed mostly uniform blue fluorescence (A). Seven “hopper”-form diamonds showed predominantly green fluorescence (B), and a few crystals showed green luminescence from H3 optical defects in linear patterns (C). Both fibrous coatings and interiors of coated diamonds (where parts of the coating are missing) fluoresced blue (D). Images by Kyaw Soe Moe.
