Titlebook: Ores in Sediments; VIII. International G. C. Amstutz,A. J. Bernard Conference proceedings 1973 Springer-Verlag Berlin · Heidelberg 1973 De

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Diagenetic Ore-forming Processes at Kamoto, Katanga, Republic of the Congo,orebodies. The host rock is dolostone, chert and shale. There is no metamorphism. Mineralization was emplaced before major tectonic deformation..The two stratiform orebodies are separated by a barren interval. The lower one rests a few feet above an erosional surface which developed over consolidate

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Classification of Stratified Copper and Lead-Zinc Deposits and the Regularities of Their Distributihezkazgan, Udokan) and lacustrine-alluvial (Priuralye, the Colorado Plateau). Enclosed in grey carbonate formations, sedimentary lead-zinc deposits are confined to shallow-marine carbonate sediments (Mirgalimsay) and coastal-marine terrigenous — carbonate deposits (Sumsar, Uch-Kulach). The transgres

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Lithostratigraphic Controls of Some Ordovician Sphalerite,y the mineralization occurs where it does. The host rock, herein referred to as the Lower Limestone, was deposited in two cyclically alternating carbonate bank environments,which produced dolomitic-mottled biointrapelsparite interbedded with dolomite. Diagenesis in the Lower Limestone biointrapelspa

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,The Manganese Ore Deposit of Kisenge — Kamata (Western Katanga). Mineralogical and Sedimentologicalamorphism. The primary ore belongs to two types, a silicate type and a carbonate type. Both of them always contain graphitized carbon. The carbonate ore frequently contains stromatolitic structures..Ce dépôt d’âge Précambrien doit être considéré comme étant d’origine sédimentaire. Il a subi un métam

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Geologic Relations Among Uranium Deposits, South Texas, Coastal Plain Region, U.S.A., to Pliocene age. The uranium ore contains small amounts of molybdenum and selenium. Deposits range from small, irregular bodies of highly oxidized “yellow ores” near the outcrop to un- oxidized “black ores” at depths of from 60 feet (18. 3 meters) to at least several hundred feet. The oxidized ore

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