Review of till geochemistry and indicator mineral methods for mineral exploration in glaciated terrain

Appendix 6-Figure 1. Flowchart showing the sequence of steps for sample processing, archiving, and geochemical analysis of the till matrix that is used at the Geological Survey of Canada. Appendix 6-Figure 2. a) Flowchart showing the main stages of till sample processing to recover the heavy and mid-density mineral fractions and to count indicator minerals that is used by the Geological Survey of Canada. b) photograph of a till sample being passed over a shaking table in the first stage of processing, with light minerals (grey) coming off the table at the bottom of the photo and heavy minerals (dark red and black) coming off the table on the left side. Photograph courtesy of Overburden Drilling Management Limited. Appendix 6-Figure 3. Sample processing flowchart showing the main stages of the processing of a till sample to recover the heavy and mid-density mineral fractions used by the Geological Survey of Finland. Modified from Lehtonen et al. (2015).