Bulletin Volcanologique

, Volume 33, Issue 1, pp 101–117 | Cite as

Heat flow in the eastern pacific and sea floor spreading

  • D. P. McKenzie
  • J. G. Sclater


A simple model based on the hypothesis of sea floor spreading can account for the main features of two major high heat flow anomalies in the eastern Pacific; the broad band of high values along the crest of the East Pacific Rise and the large concentration of high values centered on the Galapagos Rift Zone. Using the same model to interpret both the surface shape of the midocean ridges and the heat loss of the entire ridge system, the calculated elevation is found to be comparable, though smaller than, that observed for the ridges and the heat dissipated by crustal production along the axis of the entire ridge system is shown to be approximately 15% of the total heat loss through the oceans.


Heat Flow Lithosphere Rayleigh Number Magnetic Anomaly Midocean Ridge 
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Copyright information

© Stabilimento Tipografico Francesco Giannini & Figli 1969

Authors and Affiliations

  • D. P. McKenzie
    • 1
    • 2
  • J. G. Sclater
    • 1
    • 3
  1. 1.University of CaliforniaSan Diego
  2. 2.Institute of Geophysics and Planetary PhysicsLa Jolla
  3. 3.Marine Physical Laboratory of the Scripps Institution of OceanographyLa Jolla

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