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Cretaceous
2
Hawaiian-Emperor seamount chain
2
Kamchatka
2
PGE
2
basalt
2
intra-oceanic arc
2
paleo-Pacific
2
picrite
2
shoshonite
2
subduction zone
2
260100 Geology
1
east pacific rise
1
geochemistry
1
macquarie island
1
mantle
1
marble-cake mantle
1
mid-atlantic ridge
1
mid-ocean ridge basalt
1
oceanic upper-mantle
1
radiogenic isotopes
1
southwest indian ridge
1
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