Melts of these metasomites were volatile rich and hence ascended rapidly through the lithosphere, forming the lamprophyre magmas. |
After new oceanic crust forms, the lithosphere cools and thickens as it moves away from the ocean ridge. |
As you pull the lithosphere apart, as it separates, decompression occurs in the earth's mantle underneath the spreading centre. |
We believe that many Mesozoic and Cenozoic obducted ophiolite belts of SE Asia are fragments of fore-arc or back-arc lithosphere. |
Slow and highly attenuating lithosphere exists beneath this portion of the Anatolian plate and geometry of the Benioff zones. |
This requires the removal of 80-100 km of Archaean lithosphere since Mesozoic time. |