Lecture 9: Oceanic Basalts
Lecture 9: Oceanic Basalts
Lecture 9: Oceanic Basalts
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MORB<br />
OIB<br />
143<br />
Nd/ 144 Nd<br />
Depleted<br />
Quadrant<br />
CHUR<br />
or ε Nd<br />
Enriched<br />
Quadrant<br />
Continental<br />
Crust<br />
87<br />
Sr/ 86 Sr<br />
OIB MORB<br />
Continental<br />
Crust<br />
or ε Sr<br />
650 km<br />
Transition<br />
Zone<br />
<br />
Depleted<br />
Upper Mantle<br />
Primordial<br />
Lower Mantle
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