Questions tagged [sea-floor]

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What are these underwater structures near 6°N 85°55'W

While google earth-researching the sea floor near Malpelo and Cocos Islands (Colombian and Costa Rican Pacific Ocean), I came along these strangely geometrical structures in the sea floor, located ...
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Is the seafloor of the Gulf of Mexico and Caribbean Sea mostly sedimentary rock?

This comes from a related question about predicting oil (or not) in the deep sea, not just the continental shelf. Apparently the deep seafloor is igneous, which lowers its chances of holding oilfields....