单词	abyssal plain
释义	abyssal plain noun : any of the great flat sediment-covered areas of ocean floor see continental shelf illustration Example Sentences Recent Examples on the Web The team had discovered an undersea volcano, or seamount, on an abyssal plain—a geologically inactive region that shouldn’t have any. Akila Raghavan, Science | AAAS, 15 July 2021 Drazen is one of a select few scientists who have explored the abyssal plain ecosystem of the Clarion-Clipperton Zone (CCZ), where the majority of the ISA’s undersea mining contracts are located. Alex Fox, Smithsonian Magazine, 1 May 2020 Now, seamounts have caught the eye of people interested in using sophisticated machines to mine deep-sea habitats, including hydrothermal vents and abyssal plains, that hold precious minerals. Warren Cornwall, Science | AAAS, 12 Sep. 2019 Companies hoping to extract those metals from the seabed are focusing first on abyssal plains. Warren Cornwall, Science | AAAS, 12 Sep. 2019 One of the first dots in question was the unusual location of the 1969 earthquake's epicenter: a featureless expanse known as the Horseshoe abyssal plain. National Geographic, 6 May 2019 Word History First Known Use 1880, in the meaning defined above
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