A Dynamic Model of the Hellenic ARC Deduced from Geophysical Data

  1. Charles L. Drake
  1. J. Makris

Published Online: 21 MAR 2013

DOI: 10.1029/SP005p0041

Geodynamics: Progress and Prospects

Geodynamics: Progress and Prospects

How to Cite

Makris, J. (1976) A Dynamic Model of the Hellenic ARC Deduced from Geophysical Data, in Geodynamics: Progress and Prospects (ed C. L. Drake), American Geophysical Union, Washington, D. C.. doi: 10.1029/SP005p0041

Author Information

  1. Institut für Geophysik der Universität Hamburg, 2 Hamburg 13, Germany Fed. Rep.

Publication History

  1. Published Online: 21 MAR 2013
  2. Published Print: 1 JAN 1976

ISBN Information

Print ISBN: 9780875902036

Online ISBN: 9781118664902

SEARCH

Keywords:

  • Aegean Sea;
  • Geophysical data;
  • Gravity field and 2-D crustal models;
  • Hellenic arc;
  • Refraction seismic data

Summary

Combined gravity and seismic data from Greece and the adjacent areas have been used to explain the high seismicity and tectonic activity of this area. Computed 2-D gravity models revealed that below the Aegean Region a large “plume” of hot Upper Mantle material is rising causing strong attenuation of the crust. The hot “plume” extends to the basis of the lithosphere and has been mobilized through compressional processes that forced the lithosphere to sink into the astenosphere. The above model is supported by high heat flow in the Aegean Region, low velocity of the compressional waves of 7.7 km/sec for the Upper Mantle, lower density than normal extending to the basis of the lithosphere, teleseismic P-wave traveltime residuals of the order of +2 sec and the well known existence of a Benioff zone below the Aegean Sea.