xviii CONTRIBUTORS Bucher, K University of Freiburg, Freiburg, Germany Cosgrove, J W Imperial College London, London, UK Burns, S F Portland State University, Portland, OR, USA Coxon, P Trinity College, Dublin, Ireland Byford, E Broken Hill, NSW, Australia Cressey, G The Natural History Museum, London, UK Calder, E S Open University, Milton Keynes, UK Cribb, S J Carraig Associates, Inverness, UK Cameron, E M Eion Cameron Geochemical Inc., Ottawa, ON, Canada Cronan, D S Imperial College London, London, UK Carbotte, S M Columbia University, New York, NY, USA Currant, A The Natural History Museum, London, UK Carminati, E Universita La Sapienza, Rome, Italy Davies, H University of Papua New Guinea, Port Moresby Papua New Guinea Chamberlain, S A Macquarie University, Sydney, NSW, Australia Davis, G R Imperial College London, London, UK Charles, J A Formerly Building Research Establishment Hertfordshire, UK DeCarli, P S SRI International, Menlo Park, CA, USA Chiappe, L M Natural History Museum of Los Angeles County Los Angeles, CA, USA Dewey, J F University of California Davis Davis, CA, USA, and University of Oxford, Oxford, UK Clack, J A University of Cambridge, Cambridge, UK Doglioni, C Universita La Sapienza, Rome, Italy Clayton, C Eardiston, Tenbury Wells, UK Doming, K J University of Sheffield, Sheffield, UK Clayton, G Trinity College, Dublin, Ireland Dott, Jr R H University of Wisconsin, Madison, Wl, USA Cocks, L R M The Natural History Museum, London, UK Doyle, P University College London, London, UK Coffin, M F University of Tokyo, Tokyo, Japan Dubbin, W E The Natural History Museum, London, UK Collinson, J John Collinson Consulting, Beech, UK Dyke, G J University College Dublin, Dublin, Ireland Comerford, G The Natural History Museum, London, UK Echtler, H GeoForschungsZentrum Potsdam, Potsdam, Germany Condie, K C New Mexico Tech, Socorro, NM, USA Eden, M A Geomaterials Research Services Ltd, Basildon, UK Cornford, C Integrated Geochemical Interpretation Ltd, Bideford, UK Eide, E A Geological Survey of Norway, Trondheim, Norway Cornish, L The Natural History Museum, London, UK Eldholm, O University of Bergen, Bergen, Norway