Includes bibliographical references and index. This volume was stimulated by a Pardee Symposium titled 'Evolution of the Early Atmosphere, Hydrosphere, and Biosphere: Constraints from Ore Deposits, ' which convened in 2002 at the national meeting of the Geological Society of America. It includes papers based on some of the presentations at the symposium, as well as additional papers.
Contents:
Chemical and biological evolution of early Earth / H. Ohmoto ... [et al.]. Early life signatures in sulfur and carbon isotopes from Isua, Barberton, Wabigoon (Steep Rock) and Belingwe Greenstone Belts (3.8 to 2.7 Ga.) / N.V. Grassineau -- Fingerprinting the metal endowment of early continental crust to test for secular changes in global mineralization / C. Thiart and M.J. de Wit -- Discovery of the oldest oxidized granitoids in the Kaapvaal Craton and its implications for the redox evolution of early Earth / S. Ishihara ... [et al.] -- Secular variations of N-isotopes in terrestrial reservoirs and ore deposits / R. Kerrich ... [et al.] -- Sedimentary setting of Witwatersrand placer mineral deposits in an Archean atmosphere / W.E.L. Minter -- Witwatersrand gold-pyrite-uranitite deposits do not support a reducing Archean atmosphere / J. Law and N. Phillips -- Evidence from sulfur isotope and trace elements in pyrites for their multiple post-depositional processes in uranium ores at the Stanleigh mine, Elliot Lake, Ontario, Canada / K.E. Yamaguchi and H. Ohmoto -- Time constraint for the occurrence of uranium deposits and natural nuclear fission reactors in the Paleoproterozoic Franceville Basin (Gabon) / F. Gauthier-Lafaye -- Proterozoic sedimentary exhalative (SEDEX) deposits and links to evolving global ocean chemistry / T.W. Lyons -- Precambrian Mississippi Valley-type deposits / S.E. Kesler and M.H. Reich -- Superheavy S. isotopes from glacier-associated sediments of the Neoproterozoic of south China / Liu Tie-bing, J.B. Maynard, and J. Alten -- Evaluation of diagenetic recycling as a source of iron for banded iron formations / R. Raiswell -- Microbially mediated iron mobilization and deposition in iron formations since the early Precambrian / D.A. Brown -- Oxygen isotope composition of hematite and genesis of high-grade BIF-hosted iron ores / J. Gutzmer -- Rare-earth elements in Precambrian banded iron formations / Y. Kato, K.E. Yamaguchi, and H. Ohmoto -- Chemical and biological evolution of early Earth / H. Ohmoto ... [et al.].
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.