Earth's mantle geochemistry

2011 ◽  
Keyword(s):  
Earth’S Mantle ◽  
Mantle Geochemistry

Melt mapped inside Earth’s mantle

Nature ◽  
2020 ◽  
Vol 586 (7830) ◽  
pp. 506-507
Author(s):  
Laura Cobden
Keyword(s):  
Earth’S Mantle

Phase changes and convection in the Earth’s mantle

1965 ◽  
Vol 258 (1088) ◽  
pp. 276-283 ◽  
Keyword(s):  
Temperature Gradient ◽  
Phase Change ◽  
Initial Temperature ◽  
Phase Changes ◽  
Homogeneous Layer ◽  
Transformation Zone ◽  
Earth’S Mantle ◽  
Transition Level ◽  
Transformation Rates

A phase change may hinder or enhance convection, depending on its characteristics. Univariant transformations such as may occur in the mantle constitute a barrier to convection unless the motion starts at some distance above or below the transition level; an initial temperature gradient in excess of the adiabatic value is also required. Multivariant transformations only require, in the transformation zone, an initial gradient slightly greater than the adiabatic value for a homogeneous layer. The effect on convection of transformation rates is not likely to be serious.

The Earth's mantle

1968 ◽  
Vol 1 (3) ◽  
pp. 198-199
Author(s):  
D.W. Collinson
Keyword(s):  
Earth’S Mantle

scholarly journals Metamorphic devolatilization of subducted marine sediments and the transport of volatiles into the Earth's mantle

Nature ◽  
2001 ◽  
Vol 411 (6835) ◽  
pp. 293-296 ◽  
Author(s):  
D. M. Kerrick ◽  
J. A. D. Connolly
Keyword(s):  
Marine Sediments ◽  
Earth’S Mantle
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