mid-ocean ridge

\ ˈmid-ˈō-shən- How to pronounce mid-ocean ridge (audio) \

Definition of mid-ocean ridge

: an elevated region with a central valley on an ocean floor at the boundary between two diverging tectonic plates where new crust forms from upwelling magma

Examples of mid-ocean ridge in a Sentence

Recent Examples on the Web The Erta Ale has been erupting constantly for over 50 years and it is believed that as the Erta Ale continues to erupt, a new narrow ocean basin with its mid-ocean ridge will be formed. Uwagbale Edward-ekpu, Quartz Africa, 12 Aug. 2020 The latest boomerang was recorded near the mid-ocean ridge in the Atlantic, where the South American and African tectonic plates slowly inch apart. Maya Wei-haas, National Geographic, 10 Aug. 2020 These two facts generally explain both volcanoes along plate boundaries—like the Pacific Ring of Fire or the mid-ocean ridges—and those at hot spots like Hawaii and Yellowstone. Scott K. Johnson, Ars Technica, 28 Feb. 2020 Earth's longest mountain chain, the mid-ocean ridge, is slowly revealed after sea levels drop by 6,500 feet. Jennifer Leman, Popular Mechanics, 3 Feb. 2020 That could make more sense if mid-ocean ridge eruptions were pumping out extra CO2. Scott K. Johnson, Ars Technica, 8 Feb. 2018 There are submarine volcanoes, along Earth's mid-ocean ridges, that have been erupting longer. Doyle Rice, USA TODAY, 7 May 2018 The mid-ocean ridges and dinosaurs continue their normal activity. Smithsonian, 8 Feb. 2018 The mid-ocean ridges on the seafloor, however, keep records. Scott K. Johnson, Ars Technica, 8 Feb. 2018 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mid-ocean ridge.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of mid-ocean ridge

1961, in the meaning defined above

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The first known use of mid-ocean ridge was in 1961

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mid-ocean ridge

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Cite this Entry

“Mid-ocean ridge.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mid-ocean%20ridge. Accessed 7 Jul. 2022.

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