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By DAVID R. LENTZ KATHLEEN G. THORNE KRISTY-LEE BEAL

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Extra resources for Proceedings of the 24th international applied geochemistry symposium, vol 1

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6. 3D visualization of a UVW spheriogram in relation to a control drill hole data set. Red and blue intersections indicate the presence and absence of felsic volcanic rocks, respectively (data from Xstrata Copper). Fig. 4. Lower part of the Horne deposit depicting relationships between synvolcanic mafic dykes (green), late syenite dykes (yellow) and high grade Cu mineralization (red bodies). Structural contours are 200 feet. (Figs. 6). Although these techniques have traditionally been used mostly by ore reserve engineers, the mineral exploration community can now take advantage of these powerful geospatial tools in the 3D GIS environment.

Springer, New York. T. , 1999. The giant Kidd Creek volcanogenic massive sulfide deposit, western Abitibi Subprovince, Canada: preface and introduction. D. T. (eds) The Giant Kidd Creek Volcanogenic Massive Sulfide Deposit, Western Abitibi Subprovince, Canada. Economic Geology Monograph 10. Economic Geology Publishing Company, Littleton, CO, 1-30. L. , 2006. Do Archean chemical sediments record ancient seawater rare earth element patterns? Geochimica et Cosmochmica Acta, 70, 871-890. V. , 2007.

00). 42) is also relatively high, the extraction efficiency is probably affected by fluoride, which is a weak base, Fig. 2. Logarithmic scatterplot of MHP versus TP at the MHP threshold for Pb, analogous to Figure 1. In the following graphs, the two best extractions for Zn and Pb are presented in traverses across the Northeast Zone at Gay’s River. In these graphs, the dashed line represents the threshold that produces the lowest (most accurate) MHP for each element and digestion. 25 th Proceedings of the 24 IAGS, Fredericton, 2009 These changes have significant effects on the solubility of metals in the KF solution.

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