Abstract
Spatial and structural patterns associated with scheelite mineralization in a major gold deposit in Uzbekistan are investigated. Examination of the morphology of tungsten-bearing zones, their internal structure, and relation with gold orebodies reveals that the overwhelming majority of tungsten-bearing zones in the Muruntau gold ore deposit are stratified, with gold orebodies usually lying separate from tungsten-bearing orebodies. The two occasionally merge near thick cross-cutting quartz veins. Topomineralogic mapping, sampling of mineral bodies, and laboratory research (e.g., thermo- barogeochemistry) provided the rationale for a three-stage model of mineral genesis. The three generations of scheelite that can be distinguished at Muruntau are: scheelite-1, formed as a result of pyroxene- amphibole metasomatism of biotite-quartz schist; scheelite-2, which exhibits close spatial and temporal association with gold; and scheelite-3, which is post-ore and formed in the course of redeposition of earlier schee...
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