Uranium Deposits of the World: USA, and Latin America by Franz J. Dahlkamp

By Franz J. Dahlkamp

Uranium Deposits of the realm gathers and offers an enormous choice of facts at the place, caliber and accessibility of uranium assets in approximately each sector of the globe. Incorporating the most recent findings, together with a lot newly on hand fabric, this is often the main finished reference paintings but produced at the subject. The assurance is going additional, providing professional overviews and fine-grained research of the commercial viability of ore deposits. This exhaustive, updated reference is designed for sensible use, and organized by means of 4 geographic areas: Asia; united states and Latin the US; Europe; and Australia-Oceania and Africa. every one area and nation is brought with an analytical evaluate, by way of a close geologically- and economically-relevant synopsis of its person areas and ore fields. the knowledge comprises place and value of uranium districts and deposits; important gains of the districts; and features of chosen deposits. Abundantly illustrated with maps and precious charts, the descriptions of districts and deposits contain sections on geology, alteration, mineralogy, form and dimensions, ore controls or popularity standards, and metallogenic features. A typological class of deposits offers an outline of imperative standards of deposit forms and similar nomenclature.

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Early roll-type mineralization associated with peneconcordant ore horizons is similar in character to the Wyoming rolls except that oxidized sandstone on the convex, updip side has been re-reduced. Breccia pipe mineralization is characterized by •• Pipes down-dropped in sandstones adjacent to fractures •• Restriction to Morrison sandstones •• Matrix- and structure-hosted mineralization •• High ore grades but small resources. Redistributed post-fault ore as typically found in stack deposits (> Fig.

The facies pattern indicates the development of an alkaline–saline lake in a closed basin during Brushy Basin Formation time. (After Turner-Peterson and Fishman 1986 based on Turner-Peterson 1985; AAPG 1985, reprinted by permission of the AAPG whose permission is required for further use) Principal Host Rock Alteration Alteration phenomena include reduction, oxidation, montmorillonitization, kaolinitization, chloritization, sulfidization, Na metasomatism, and destruction of detrital feldspar, magnetite, and ilmenite.

After Adams and Saucier 1981 based on Squires 1970, Kendall 1971) remobilization. The reprecipitation of uranium usually occurred within 300 m or less, and probably not farther away than about 1,000 m from its origin Holen (1982) attributes roll-type ore to primary miner­ alization, probably for its supposed pre-Dakota formation and its close association with humate. Adams and Saucier (1981), like other investigators, include roll-deposits in the redistributed category. They argue that both mineralogy and chemistry are the same as stack ore.

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