Geo-Platinum 87

1. Front Matter

   Pages i-xvi

   PDF

2. Invited Papers

   1. Exploration for Platinum: a Contemporary Viewpoint

      • C. J. Morrissey

      Pages 1-12

   2. The Platinum Market: Recent History and Future Developments

      • C. R. N. Clark

      Pages 13-20

3. Analytical Techniques

   1. Evaluation of the Nickel Sulphide Bead Method of Fire-assay for the Platinum-Group Elements using Neutron Activation Analysis

      • S. J. Parry, I. W. Sinclair, M. Asif

      Pages 21-27

   2. Preconcentration of Precious Metals by Tellurium Sulphide Fire-assay Followed by Instrumental Neutron Activation Analysis

      • I. Shazali, L. Van’t Dack, R. Gijbels

      Pages 29-42

   3. The Potential of Fire-assay and ICP-MS for the Determination of Platinum-Group Elements in Geological Materials

      • Alan R. Date, Alan E. Davis, Yuk Ying Cheung

      Pages 43-44

   4. ICP-AES Determination of Precious Metals in Difficult Materials

      • Paul Whitehead

      Pages 45-45

   5. New Detection Techniques for Locating Precious Metal Minerals by Beta Autoradiography: Preliminary Results for Rhodium and Silver Grains

      • Philip J. Potts

      Pages 47-56

4. Theoretical and Experimental Studies

   1. Solubility and Transport of Platinum-Group Elements in Hydrothermal Solutions: Thermodynamic and Physical Chemical Constraints

      • Bruce W. Mountain, Scott A. Wood

      Pages 57-82

   2. New Mechanisms for the Mobilization of the Platinum-Group Elements in the Supergene Zone

      • Ian R. Plimer, Peter A. Williams

      Pages 83-92

   3. Spinel Non-stoichiometry as the Explanation for Ni-, Cu- and PGE-enriched Sulphides in Chromitites

      • A. J. Naldrett, J. Lehmann

      Pages 93-109

   4. The Potential for Hydrothermal Platinum Deposits

      • John W. Lydon

      Pages 111-112

5. Europe and North Africa

   1. The Use of Mantle Normalization and Metal Ratios in Discriminating between the Effects of Partial Melting, Crystal Fractionation and Sulphide Segregation on Platinum-Group Elements, Gold, Nickel and Copper: Examples from Norway

      • Sarah-Jane Barnes, R. Boyd, A. Korneliussen, L-P. Nilsson, M. Often, R. B. Pedersen et al.

      Pages 113-143

   2. Noble Metal Geochemistry of some Ni-Cu Deposits in the Sveconorwegian and Caledonian Orogens in Norway

      • R. Boyd, S.-J. Barnes, A. Grønlie

      Pages 145-158

   3. The Significance of Cumulus Chlorapatite and High-temperature Dashkesanite to the Genesis of PGE Mineralization in the Koitelainen and Keivitsa-Satovaara Complexes, Northern Finland

      • Tapani Mutanen, Ragnar Törnroos, Bo Johanson

      Pages 159-160

   4. The Shetland Ophiolite: Evidence for a Supra-subduction Zone Origin and Implications for Platinum-Group Element Mineralization

      • H. M. Prichard, R. A. Lord

      Pages 161-161

   5. Nickel-Copper and Precious Metal Mineralisation in the Caledonian Mafic and Ultramafic Intrusions of North-East Scotland

      • T. A. Fletcher

      Pages 163-164

   6. Platinum-Group Element Analyses of Serpentinites in the Eastern Central Alps, from Davos (Switzerland) to the Valmalenco (Italy)

      • Dorothee J. M. Burkhard, Norman J. Page, G. Christian Amstutz

      Pages 165-177

   7. Further Data on Platinum—Palladium Minerals from the Ivrea-Verbano Sulphide Deposits

      • G. Garuti, R. Rinaldi

      Pages 179-179

   8. Platinum-Group Elements and Au Distribution in Ni Arsenide-Chromite Veins from the Rifo-Betic Lherzolite Massifs (Morocco—Spain)

      • M. Leblanc, F. Gervilla-Linares

      Pages 181-198

The Geo-Platinum 87 Symposium, held at the Open University during April 1987, was designed as a forum for presentation of new research results on the occurrence, genesis, geochemistry, mineralogy and analysis of the platinum-group elements (PGE). With the support of the Open University and the Mineral Industry Research Organisation, the symposium was attended by 115 representatives of university departments, research institutions and members of the mining and mineral exploration industries. An introduction to the symposium was provided by two invited papers from C. J. Morrissey (Riofinex North) and C. R. N. Clark (Johnson Matthey) which were designed to give perspective to the goals of PGE research work. The first of these papers gave a provocative insight into the aims and objectives of an exploration manager, examining the influence of supply, demand and perceived world reserves on exploration strategy. The second invited paper gave a valuable view of the industrial uses, market trends and predicted changes in the commercial value of the platinum-group elements from the standpoint of a refining company and supplier. These invited papers are reproduced in this volume and are followed by twenty­ four full papers and twenty abstracts that reflect the wide range of research topics presented at the symposium.

• Mafic
• chemistry
• dyke
• geochemistry
• geology
• intrusion
• lithosphere
• mineral
• mineralogy
• mining
• mobility
• noble metal
• orogeny
• reef
• sediment
• economic geology

• Department of Earth Sciences, The Open University, Milton Keynes, UK

  H. M. Prichard, P. J. Potts

• Mineral Industry Research Organisation, Lichfield, UK

  J. F. W. Bowles, S. J. Cribb

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