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OverviewFull Product DetailsAuthor: Euan G. NisbetPublisher: Kluwer Academic Publishers Group Imprint: Kluwer Academic Publishers Edition: 1987 ed. Dimensions: Width: 15.50cm , Height: 2.20cm , Length: 23.50cm Weight: 0.646kg ISBN: 9780045500499ISBN 10: 0045500495 Pages: 402 Publication Date: 23 July 1987 Audience: College/higher education , Tertiary & Higher Education Format: Paperback Publisher's Status: Active Availability: Out of stock The supplier is temporarily out of stock of this item. It will be ordered for you on backorder and shipped when it becomes available. Table of ContentsI Background: Concepts and field evidence.- 1 Introduction.- 1.1 Purpose and scope.- 1.2 Concepts.- 1.3 Catastrophes vs. uniformity.- 1.4 Archaean stratigraphy and mapping.- 2 Geochronology and other uses of isotopic analysis.- 2.1 Introduction.- 2.2 K-Ar and 40Ar/39Ar methods.- 2.3 Application of K-Ar data.- 2.4 Rb-Sr dating.- 2.5 Sm-Nd, Lu-Hf and Re-Os methods.- 2.6 U, Th-Pb dating methods.- 2.7 Choosing a dating technique.- 2.8 The isotopiC record of planetary evolution.- 3 Archaean terrains: the available geological evidence.- 3.1 Introduction.- 3.2 Transects through the Archaean crust.- 3.3 Archaean 'cover' successions.- 3.4 Granite-greenstone terrains.- 3.5 Construction of the craton.- 3.6 Other Archaean low-grade terrains.- 3.7 Gneiss terrains.- 3.8 Archaean high-grade terrains.- 3.9 The information available in Archaean terrains.- 3.10 An example of an Archaean field area: the Belingwe Belt, Zimbabwe.- 3.11 The Archaean record: a basis for interpretation.- II Reconstructing the Archaean Earth.- 4 The beginnings of life.- 4.1 Geological evidence for life.- 4.2 Molecular palaeontology and the History of Life in the Archaean.- 5 Archaean continents.- 5.1 Continents and oceans.- 5.2 Archaean sediments.- 5.3 The sedimentological record: stratigraphic examples.- 5.4 Archaean sedimentary facies: some deductions from evaporites, stromatolites, cherts and ironstones.- 5.5 The composition of the sedimentary mass.- 5.6 The crustal residence times of the sedimentary mass.- 5.7 The thermal regime of the continental crust: metamorphosis and intrusion.- 5.8 Archaean granitoids: the substance of the continents.- 5.9 Metamorphism: the problem of 'equilibrium' gradients.- 5.10 Archaean continental geotherms: how thick was the subcontinental lithosphere?.- 5.11 Plate tectonics: an Archaean necessity.- 6 Archaean volcanism.- 6.1 Andesitic suites.- 6.2 Alkaline rocks.- 6.3 Kimberlites: the case of the missing diamonds again.- 6.4 Komatiites.- 6.5 Basalts.- 6.6 Ultramafic complexes.- 6.7 The composition of Archaean mafic and ultramafic lavas.- 6.8 Possible relationships between komatiites and komatiitic basalts.- 6.9 Implications of the major element compositions of komatiites: the source region.- 6.10 Through a glass darkly: the trace element and isotopic window to the Archaean mantle.- 6.11 The evolution and stratification of the mantle.- 6.12 The rates of growth of the continents and depletion of the mantle.- 7 Mineral deposits in Archaean rocks.- 7.1 Gold deposits.- 7.2 Base metal deposits.- 7.3 Archaean nickel deposits.- 7.4 Platinum group elements.- 7.5 Chrome.- 7.6 Asbestos.- 7.7 Iron ore.- 7.8 Other minerals.- 8 Models of the early Earth.- 8.1 The bowels of the Earth.- 8.2 Plate tectonics.- 8.3 Continents and water.- 8.4 The degassing of the planet.- 8.5 Gaia.- 8.6 Life.- 8.7 The origin of life.- 8.8 The home of life.- Glossary of geological terms for non-geologists.- References.- Author Index.ReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |