MOLYBDENUM IN A BROWN COAL DEPOSIT OF UZBEKISTAN

Metallic sulfides containing molybdenum occur in a Triassic-Jurassic coal-volcanic complex in an Uzbek intermontane graben. The molybdenum was originally concentrated in the living coal plants and secondarily enriched by jordisite-ilsemannite mineralization from circulating ground waters. Economic development should include the possibilities of finding and using placer gold, alumina and refractory clays, coal, and molybdenum ore.--M. Russell.

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