Crustal accretion model for Iceland predicts cold crust

W. Menke and D. Sparks

Geophys. Res. Lett. 13, 1673-1676, 1995


We present a self-consistent crustal accretion model of Iceland that includes heat and mass transfer between an upwelling, melting mantle and and accreting, cooling crust. This model predicts sub-solidus crustal temperatures that are consistent with seismic estimates of the maximum depth of earthquake hypocenters and mid-crustal shear wave quality factors, and with geothermal estimates of heat flow.

(Top) Interpretive drawing of crustal accretion in Iceland. (Bottom) Modeled crustal accretion showing isotherms and flow vectors.