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Archean Geodynamics and Environments.

K. BENN, J-C. MARASCHEL, AND K.C. CONDIE, Editors. Pp. 320. AGU Geophysical Monograph 164, American Geophysical Union, Washington D.C. 2005. ISBN 0-87590-429-7. Price US$89.

Centre for Exploration Targeting, School of Earth and Geographic Sciences, University of Western Australia, Nedlands 6009 W.A., Australia

The first 20% of the full text of this article appears below.

Archean terranes are important from an economic viewpoint because they host world-class Archean orogenic gold, paleoplacer gold, VHMS, komatiite-associated Ni-Cu, and enriched BIF iron ores; world-class post-Archean intrusion-related PGE-Ni-Cu, IOCG, and diamond deposits; and a variety of regolith-related deposits, such as bauxite, nickeliferous laterite, and beach sands. Many other ore provinces, such as Carlin and those containing most giant nickel districts, are sited adjacent to Archean cratonic margins. Archean terranes are also natural laboratories in which to answer some of the fundamental questions concerning processes that operated during the early evolution of our planet, when the first continental crust formed in what was, undoubtedly, a hotter and more primitive Earth. These questions include the nature of processes operating within the mantle, the nature of early lithosphere, and the processes of formation, stabilization, and preservation of continents as related to the geodynamic processes . . . [Full Text of this Article]