| The enrichment of the lithospheric mantle could be produced by several processes. |
| Hence, moissanites in kimberlites represent xenocrysts, the kimberlites sampling cold and reduced parts of lithospheric mantle keels. |
| This session will focus on the evolution of magmatic and lithospheric processes during the Proterozoic. |
| Magmas erupted in continental volcanic arcs typically contain components from many sources in the crust, lithospheric mantle and asthenosphere. |
| They are interpreted to have been derived from subduction modified lithospheric and asthenospheric mantle sources. |
| In Iceland the volcanic vents often are long fissures parallel to the rift zone where lithospheric plates are diverging. |
