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Dictionary

rift' val"ley

Geol.
1. graben.
2. a subsea chasm extending along the crest of a mid-ocean ridge, locus of the magma upwellings that accompany seafloor spreading.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

rift-sawed

Rift Valley fever

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