gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1998.62A.1.237 The Influence of Siberian Rivers Over the Preservation of Organic Matter on Arctic Coastal Shelves Fernandes M. B. Instituto de Quimica, Universidade Federal do Rio de Janeiro, Centro de Tecnologia - Bloco A - Sala 607, 21949-900 Rio de Janeiro, RJ, Brazil Sicre M.-A. Laboratoire des Sciences du Climat, et de l'Environnement, Domaine du CNRS, Ave. de la Terrasse, 91191 Gif-sur-Yvette Cedex, France 1998 62A 1 448 449 Copyright © 1998, The Mineralogical Society 1998