| The enrichment of the lithospheric mantle could be produced by several processes. |
| They are interpreted to have been derived from subduction modified lithospheric and asthenospheric mantle sources. |
| Magmas erupted in continental volcanic arcs typically contain components from many sources in the crust, lithospheric mantle and asthenosphere. |
| This suggests that the peralkaline volcanic magma was derived from a lithospheric mantle source that had not been previously depleted in incompatible elements. |
| Most of the 600 or so active volcanoes of the world are located at the margins of the big lithospheric plates which make up the Earth's crust. |
| Where a lithospheric plate moves over a hot spot, a chain of volcanic islands may be created. |
