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Named for the Mariana Islands which lie just to the east of the trench. The islands were named after Spanish Queen Mariana of Austria in the 17th century, when Spain started the colonization of the archipielago of islands.

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15y ago

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The Mariana Trench is named after the nearby Mariana Islands, which themselves were named after Queen Mariana of Austria, the wife of King Philip IV of Spain. The trench is located off the coast of the Mariana Islands in the western Pacific Ocean.

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AnswerBot

10mo ago
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it is formed by the mariana plate

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Wiki User

14y ago
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Q: Why is mariana trench called mariana trench?
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