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Showing 81-100 of 129 results
  1. Geochemistry and geotectonic setting of Late Proterozoic Katangan basic rocks from Kibambale in central Shaba (Zaire)

    The Late Proterozoic Katangan basic rocks (dolerites and basalts) outcrop** at Kibambale in central Shaba (Zaire) are classified as...

    A. B. Kampunzu, M. Kanika, ... K. Tshimanga in Geologische Rundschau
    Article 01 December 1993
  2. Dewatering concepts at Zambian Copperbelt Mines

    During the financial year 1992/93, Zambian Consolidated Copper Mines Ltd (ZCCM) Ltd pumped a total of 263 million tonnes of water from its various...

    Article 01 September 1992
  3. Organic Matter and its Significance for the Genesis of the Copper-Bearing Shales (Kupferschiefer) from the Fore-Sudetic Monocline (Poland)

    Geochemical data for the organic matter (OM) in the Fore-Sudetic copper-bearing shales have been collected and evaluated. They were also compared...
    Z. Sawlowicz in Bitumens in Ore Deposits
    Chapter 1993
  4. Konkola Deep Mining Project: Concept and planning

    It is the hope of the authors that this paper would at least partially fulfil its purpose of making the reader aware of the conceptual planning...

    Benedict C Chileshe, Rajan V Kulkarni in Mine Water and the Environment
    Article 01 September 1992
  5. On the Association of Ore Deposits with Stromatolites

    Several stratiform ore deposits show the following characteristics: (1) close association with stromatolites; (2) occurrence along the borders of a...
    M. Brongersma-Sanders in Early Organic Evolution
    Chapter 1992
  6. Hydrothermal Mineral Deposits of Continental Rift Environments

    In Chapter 6 (Sect. 6.2.2) we introduced the subject of continental rifts and aulacogens, and their related mineral deposits. In this chapter, we...
    Franco Pirajno in Hydrothermal Mineral Deposits
    Chapter 1992
  7. Lead isotopic signatures at the Klein Aub Mine, Namibia — Implications for mineralisation models

    Pb and U isotopic data have been obtained for stratabound, sediment-hosted Cu-mineralisation and igneous, volcanic and sedimentary rocks from other...

    F. Walraven, G. Borg in Mineralium Deposita
    Article 01 March 1992
  8. Geological Processes and Hydrothermal Mineralisation in Plate Tectonic Settings — Mineral Exploration

    The Earth’s outer layers, namely, the lithosphere and the asthenosphere have an important role in the mechanisms of plate tectonics. The outermost...
    Franco Pirajno in Hydrothermal Mineral Deposits
    Chapter 1992
  9. Geotectonic and Metallogenic Analysis of Orogenic Belts

    In this chapter we discuss the geotectonic and metallogenic analysis of the Late Proterozoic Pan-African orogenic belts of Africa, and the...
    Franco Pirajno in Hydrothermal Mineral Deposits
    Chapter 1992
  10. Hydrothermal Systems

    In this chapter the types of hydrothermal activities and systems responsible for the genesis of a wide range of mineral deposits are described....
    Franco Pirajno in Hydrothermal Mineral Deposits
    Chapter 1992
  11. Crustal Evolution, Global Tectonics and Mineral Deposits

    The theory of sea-floor spreading and the “new” global tectonics, including the more recent ideas on accretionary tectonics, has permitted a much...
    Franco Pirajno in Hydrothermal Mineral Deposits
    Chapter 1992
  12. Mineral Deposits and Metallogeny: Indicators of Earth’s Evolution

    Major types of mineral deposits exhibit distinct changes in composition and geological setting from Archean to Recent time. These changes include...
    R. W. Hutchinson in Early Organic Evolution
    Chapter 1992
  13. The origin and economic potential of sandstone-hosted disseminated Pb-Zn mineralization in pyritic shale horizons of the Mid-Proterozoic Newland Formation, Montana, USA

    Pyritic shale horizons of the Newland Formation (Belt Series, Mid-Proterozoic) show striking similarities to Proterozoic pyritic shales elsewhere...

    J. Schieber in Mineralium Deposita
    Article 01 October 1991
  14. Book reviews

    D. D. Klemm in Mineralium Deposita
    Article 01 July 1991
  15. The metallogenic relationship between Birimian and Tarkwaian gold deposits in Ghana

    The traditional concept of the Early Proterozoic gold deposits in Ghana — i.e. gold-bearing shear zones overlain by Tarkwaian paleoplacers containing...

    J. P. Milési, P. Ledru, ... Ch. Vinchon in Mineralium Deposita
    Article 01 July 1991
  16. “Background” δ34S values of Kupferschiefer sulphides in Poland: pyrite-marcasite nodules

    Regional “background” δ 34 S values of pyrite-(marcasite) nodules throughout the Zechstein basin in Poland have been measured to help estimate the...

    E. C. Jowett, T. Roth, ... S. Oszczepalski in Mineralium Deposita
    Article 01 April 1991
  17. The Idaho cobalt belt, northwestern United States — A metamorphosed Proterozoic exhalative ore district

    In the Idaho cobalt belt, originally exhalative, stratiform mineralization within the Proterozoic Yellow-jacket Formation has become increasingly...

    J. L. Nold in Mineralium Deposita
    Article 01 July 1990
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