Tectonics of the Upper Parts of the Mantle Under Geosynclines and Island Arcs

  1. Leon Knopoff,
  2. Charles L. Drake and
  3. Pembroke J. Hart
  1. Yu. M. Scheinmann

Published Online: 18 MAR 2013

DOI: 10.1029/GM012p0466

The Crust and Upper Mantle of the Pacific Area

The Crust and Upper Mantle of the Pacific Area

How to Cite

Scheinmann, Yu. M. (2012) Tectonics of the Upper Parts of the Mantle Under Geosynclines and Island Arcs, in The Crust and Upper Mantle of the Pacific Area (eds L. Knopoff, C. L. Drake and P. J. Hart), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM012p0466

Author Information

  1. Institute of the Physics of the Earth, Moscow, USSR

Publication History

  1. Published Online: 18 MAR 2013
  2. Published Print: 20 APR 2012

Book Series:

  1. Geophysical Monograph Series

Book Series Editors:

  1. Waldo E. Smith

ISBN Information

Print ISBN: 9780875900124

Online ISBN: 9781118663738

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Keywords:

  • Geosynclines;
  • Island arcs;
  • Isostatic anomalies;
  • Kuril Islands;
  • Tectonics;
  • Tectonofer;
  • Zones of deep earthquakes

Summary

Narrow zones of deep-focus earthquakes bear an important relation to mechanisms that create geosynclines and orogenic regions. Recent geosynclines-the areas of island arcs—are mainly, but not exclusively, confined to the rims of the oceans, particularly the Pacific. Zones of deep-seated earthquakes are also zones of magma melting. A main feature of these zones is the upwelling along them of a particularly strong current of energy. These zones should be considered as the most important structures in the depths of the earth; the name tectonofer is proposed for them.