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Genesis of the Iceland Melt Anomaly by Plate Tectonic G. R. Foulger1
 

Summary: Genesis of the Iceland Melt Anomaly by Plate Tectonic
Processes
G. R. Foulger1
, James H. Natland3
& Don L. Anderson3
1
Dept. Earth Sciences, University of Durham, Durham DH1 3LE, U.K.,
g.r.foulger@durham.ac.uk
2
Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600
Rickenbacker Causeway, Miami, FL 33149, jnatland@msn.com
3
California Institute of Technology, Seismological Laboratory 252-21, Pasadena, CA 91125,
dla@gps.caltech.edu
Abstract
Iceland is the best-studied, currently-active, large-volume volcanic region in the world. It
features the largest sub-aerial exposure of any "hot spot" at a spreading ridge and it is
conventionally attributed to a thermal plume in the mantle. However, whereas the apparently
large melt productivity and low-wave-speed mantle seismic anomaly are consistent with this, at
any more detailed level the observations are poorly predicted by the plume hypothesis. There is

  

Source: Anderson, Don L. - Division of Geological and Planetary Sciences, California Institute of Technology

 

Collections: Geosciences