Figure 4. Alteration effects in diamond drillhole DRN-1, Tanah Laut
property, Kalimantan. This is the same section as in Figure 3. Untreated
whole-rock data an overlapping zone of Ba addition and increasing K2O/Na2O
due to formation of sericite or K-feldspar. While one of the gold-enriched
intervals (1.79 g/t over 2.0 m) occurs in the most altered part of the
section, a second one (3.21 g/t over 2.0 m) occurs in unaltered rock.
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