Oceanic Trench - Ancient Oceanic Trenches

Ancient Oceanic Trenches

Trench Location
Intermontane Trench Western North America; between Intermontane Islands and North America
Insular Trench Western North America; between Insular Islands and Intermontane Islands
Farallon Trench Western North America
Tethyan Trench South of Turkey, Iran, Tibet and Southeast Asia

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