Geodynamic Models

Geodynamic Models

An Evaluation and Synthesis

1st Edition - January 1, 1972

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  • Author: R. W. Van Bemmelen
  • eBook ISBN: 9781483257037

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Developments in Geotectonics, Volume 2: Geodynamic Models: An Evaluation and a Synthesis presents the concept of sea-floor spreading and the hypothesis of global plate tectonics. This book provides a basic understanding of the global movements. Organized into eight chapters, this volume begins with an overview of the concept of global plate tectonics, with its additional hypotheses of subduction zones and sea-floor spreading. This text then examines the concept of vertical deformations of the lithosphere and their gravitational spreading. Other chapters consider the analysis of geotectonic processes that is based on some general principles of their mechanics. This book discusses as well the origin of mega-undations in turbulent and laminar flow systems in the lower mantle, where the matter may have a Newtonian viscosity. The final chapter deals with the geodynamics of the Earth's crust as the result of the outward growth of the deep ocean floor from mid-ocean ridges. This book is a valuable resource for geologists, geonomists, and geophysicists.

Table of Contents

  • Preface

    Chapter 1. Geonomy and Geodynamics


    The Meaning of Scientific Models

    The Fabric of Geonomy

    Computerization and Mathematization in Geonomy

    The Ripening of some Geodynamic Ideas


    Chapter 2. The Evolution of the Atlantic Mega-Undation (Causing the American Continental Drift)

    General Principles

    The Undations of the Earth's Surface

    Classification of the Undations

    Growth and Decline of Mega-Undations

    Geodynamic Reactions to Mega-Undations

    The Development of the Atlantic Mega-Undation

    The Atlantic Mega-Undation (Sensu Lato)

    Phase II: The North Atlantic Mega-Undation

    Phase III: The Thulean Mega-Undation

    Phase IV: The Arctic Mega-Undation



    Chapter 3. The Evolution of the Indian Ocean Mega-Undation (Causing the Indico-Fugal Spreading of Gondwana Fragments)

    Elaboration of the Geomechanical Model

    Newtonian and Andradean Viscosity

    Geomechanic Facts Provided by Reliable fault-Plane Solutions

    The Shifting Crests of Mega-Undations

    Stages of Evolution of Mega-Undations

    The Development of the Indian Ocean Mega-Undation

    The i0 Phase

    The iI Phase

    The pII Phase

    The iII Phase

    The iIII Phase; α Centre

    The iIII Phase; β Centre

    The iIII Phase; γ Centre

    The iIII Phase; δ Centre



    Chapter 4. Mega-Undations: A New Model for the Earth's Evolution


    The Three Main Phases of the Earth's Evolution

    Phase I

    Phase II

    Phase III

    The Relativistic Concept of Geodynamic Evolution

    The Alpine Cycle of Orogeny

    The Present Structural Features of the Earth



    Chapter 5. The Importance of the Geonomics Dimensions for Geodynamic Concepts


    The Parameter of Length in Geonomy

    The Parameter of Time in Geonomy

    The Physical and Chemical Character of the Earth's "Stockwerke"

    A Model of the Chain Reactions of the Earth's Evolution

    G Zone

    F Zone

    E Zone

    E Zone

    D Zone

    C Zone

    B Zone

    A Zone

    Concluding Remarks


    Chapter 6. The Origin and Evolution of the Earth's Crust and Magmas


    The Problem of the Origin of the Sialic Crust

    Crustal Formation According to "Classical Magmatism"

    Crustal Formation According to "Neo-Huttonism"

    The Problem of the Origin of Magmas

    The Origin of Basaltic Magmas

    The Origin of Acid Magmas

    Transitions Between Continental and Oceanic Metabolism

    General Concept of the Earth's Evolution According to the Undation Theory


    Chapter 7. The Alpine Loop of the Tethys Zone

    General Structural Trendlines of the Alpine Mountain System

    Mesotectonic Processes Inside the Mediterranean Section of the Tethys Belt

    Megatectonic Influences on the Mediterranean Section of the Tethys Belt



    Chapter 8. Geodynamic Models


    The Model of Global Plate Tectonics

    The Model of Regional Mantle Diapirism

    General Pattern of the Alpine Type Orogenesis

    Structural Evolution of the Central Mediterranean

    Consequences of the Tyrrhenian Test Case

    State and Evolution of the Earth's Tectonic Features

    Geodynamics of some Other Orogenic Arcs

    The Process of Sea-Floor Spreading

    Some Theoretical Scale Considerations




Product details

  • No. of pages: 480
  • Language: English
  • Copyright: © Elsevier 1972
  • Published: January 1, 1972
  • Imprint: Elsevier
  • eBook ISBN: 9781483257037

About the Author

R. W. Van Bemmelen

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