Overview

"Progress in Precambrian geology has been exceptionally great, indeed quite striking for geologists of the older generation; only some 30-40 years ago the Precambrian appeared as an uncertain and even mystic prelude to geologic evolution. Even the very name - Precambrian - means some indi­ visible unit in the early history of the Earth, the beginning of which is poorly known. At the same time it was obvious that the Precambrian formations are of extremely varied and complex composition and poor knowledge and lack of reliable methods of division and correlation were to blame for the lack of significant progress in studies of this early evolutionary stage of the planet. Certainly, even at the very start of Precambrian studies, the results obtained were quite promising, lifting as they did the mysterious veil over the regional Precambrian; but they presented no general realistic picture of this early stage in the Earth's evolution at that time. Recently, this situation has completely changed, due to new methods of study of the older forma­ tions, and due also to the refinement of some well-known methods, in particular of division, dating, and correlation of ""silent"" metamorphic strata. Application of different isotope methods of dating was most impor­ tant in providing objective rock age and thereby the age of geologic events recorded in these rocks. Thus it became possible to reconstruct the oldest geologic period of our planet."

Full Product Details

Author:   L.J. Salop ,  V.P. Grudina
Publisher:   Springer-Verlag Berlin and Heidelberg GmbH & Co. KG
Imprint:   Springer-Verlag Berlin and Heidelberg GmbH & Co. K
Edition:   Softcover reprint of the original 1st ed. 1983
Dimensions:   Width: 17.00cm , Height: 2.40cm , Length: 24.40cm
Weight:   0.821kg
ISBN:  

9783642686863

ISBN 10:   3642686869
Pages:   462
Publication Date:   07 December 2011
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Paperback
Publisher's Status:   Active
Availability:   Manufactured on demand  
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Table of Contents

1 General Problems in Division of the Precambrian.- I. Methods and Principles of the Precambrian Division.- II. Division of the Precambrian.- 2 The Katarchean.- A. Rock Records.- B. Geologic Interpretation of Rock Record.- 3 The Paleoprotozoic (Archeoprotozoic).- A. Rock Records.- B. Geologic Interpretation of Rock Record.- 4 The Mesoprotozoic.- A. Rock Records.- B. Geologic Interpretation of Rock Record.- 5 The Neoprotozoic.- A. Rock Records.- B. Geologic Interpretation of Rock Record.- 6 The Epiprotozoic.- A. Rock Records.- B. Geologic Interpretation of Rock Record.- 7 The Eocambrian (Vendian sensu stricto).- A. Rock Records.- B. Geologic Interpretation of Rock Record.- 8 Geologic Synthesis.- I. Evolution and Cyclicity of Geologic Processes.- II. Global Tectonics in the Light of Precambrian Geology.- III. On the Actualism Principle in the Light of Precambrian Geology.- References.- Index of Local Stratigraphic Units and of Some Intrusive Formation.

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