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Layer 1
Deep sea sediments
Layer 2
Pillow basalts
Layer 3
Sheeted dikes
Layer 4a
Isotropic gabbro layer
Layer 4b
Layered gabbro
What do the gabbro layers represent?
Crystallized parts of the magma chamber
Layer 5a
Layered peridotite
Layer 5b
Isotropic peridotite