The significance of the heavy Carbon moves the frontier of interpretation for the Italian carbonatite magmatism and carbonatites worldwide toward progressively deeper mantle sources. Italian kamafugites and carbonatites are comagmatic and erupt explosively in continental grabens. This system has some peculiarities which allow a direct link with the mantle. Spinel lherzolite xenoliths and other mantle debris are carried to the surface by carbonatites and kamafugites in the Italian Province. The extreme chemical nature of these rocks challenges conventional petrogenetic thinking. The gurus of the Italian magmatism cannot convincingly persist in preaching a geodynamic model based on Recent subduction.
Consensus and open questions about italian CO2 -driven magma from the mantle
STOPPA, Francesco
2003-01-01
Abstract
The significance of the heavy Carbon moves the frontier of interpretation for the Italian carbonatite magmatism and carbonatites worldwide toward progressively deeper mantle sources. Italian kamafugites and carbonatites are comagmatic and erupt explosively in continental grabens. This system has some peculiarities which allow a direct link with the mantle. Spinel lherzolite xenoliths and other mantle debris are carried to the surface by carbonatites and kamafugites in the Italian Province. The extreme chemical nature of these rocks challenges conventional petrogenetic thinking. The gurus of the Italian magmatism cannot convincingly persist in preaching a geodynamic model based on Recent subduction.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
