Where would you find the oldest basalts of the oceanic crust?

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Where would you find the oldest basalts of the oceanic crust?

a Crest of the East Pacific, mid-ocean ridge
b. oceanic side of the aleutian trench
c. just offshore from the hawaiian islands
d. mid-atlantic ridge, under iceland

2007-02-01 11:15:39 · 2 answers · asked by trinitarianwiccan 2 in Science & Mathematics ➔ Earth Sciences & Geology

2 answers

b. oceanic side of the aleutian trench

The ocean ridges are where new basalt is being extruded. This pushes the current floor along like a conveyor belt before it gets subducted back into the earth at an ocean trench. Its not next to the Hawaiian Islands either as they are in the middle of a plate, not the edge.

2007-02-01 11:23:40 · answer #1 · answered by Kirstin 2 · 2⤊ 0⤋

The answer is b. oceanic side of the aleutian trench

2016-02-05 13:53:13 · answer #2 · answered by ? 1 · 0⤊ 0⤋