Archaean Geochemistry: The Origin and Evolution of the Archaean Continental Crust A. Kröner

ISBN: 9783642700033

Published: November 17th 2011

Paperback

286 pages


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Archaean Geochemistry: The Origin and Evolution of the Archaean Continental Crust  by  A. Kröner

Archaean Geochemistry: The Origin and Evolution of the Archaean Continental Crust by A. Kröner
November 17th 2011 | Paperback | PDF, EPUB, FB2, DjVu, audiobook, mp3, ZIP | 286 pages | ISBN: 9783642700033 | 6.30 Mb

Archaean Geochemistry 1972 - 1984 The realisation that the continental crust contains well-preserved relics which date as far back as 4/5 of the Earths age has given a great impetus to the study of early Precambrian terrains. As late as theMoreArchaean Geochemistry 1972 - 1984 The realisation that the continental crust contains well-preserved relics which date as far back as 4/5 of the Earths age has given a great impetus to the study of early Precambrian terrains.

As late as the mid-sixties the Archaean still constituted the terra-in cognita of earth science. High metamorphic grades, poor out crop, and not least a widely assumed obliteration of early crustal records by convective recycling and thermal reworking had com bined to discourage research in this field. Many excellent local studies existed, notably around gold mining centres, but remained unrelated to a broader regional and theoretical understanding. This situation has changed as the consequence of two inter-related factors: (1) advances in isotopic methods and their application to Precambrian rocks, and (2) the recognition that some of the oldest terrains have retained a wealth of primary igneous and sedi mentary textures and even geochemical characteristics.



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