Thermal aspects of Komatiite generation and greenstone belt models

Auteurs :
WEAVER, B. L.
TARNEY, J.

Description :
Thermal modelling suggests that the problems posed by the high liquid temperatures (1,650C) of peridotitic lavas in Archaean greenstone belts, and the implied high degree of mantle melting (70%), are significantly reduced by considering uprise of a more refractory mantle diapir having an inherent density contrast with the surrounding mantle, and in a tectonic environment analogous to a marginal basin.


Type de document :
Article de périodique

Source :
Nature London, 1979, vol. 279, n°. 5715, p. 689-692, Références bibliographiques : 37 réf.

Date :
1979