Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
1999 Macmillan Magazines Ltd restricted by physical boundaries can a large
 

Summary: © 1999 Macmillan Magazines Ltd
restricted by physical boundaries can a large
thermal gradient arise. The boundary sepa-
rating the silicate mantle from the iron-alloy
corehasadensitycontrastthatisabouttwice
that between the atmosphere and crust3
. So
anyheatcomingoutofthecorewouldforma
thermal boundary layer at the bottom of
the mantle. By estimating the concomitant
temperature increase across the boundary,
Tcm, geophysicists would gain a valuable
constraint on the total heat flux from the
core, and insight into the core's physical
andchemicalproperties.
Using geophysical, petrological and geo-
chemical data, along with high-pressure
experiments and geodynamic modelling,
onecandeducethatthetemperaturenearthe
bottom of the mantle probably lies between

  

Source: Alfè, Dario - Departments of Earth Sciences & Physics and Astronomy, University College London

 

Collections: Physics; Geosciences