tablemount
noun [ C ] geology specialized uk/ˈteɪ.bəl.maʊnt/ us/ˈteɪ.bəl.maʊnt/
海底平顶山,平顶海山
a mountain under the sea with a flat top
Tablemounts are flat-topped volcanic cones that lie 3,000–6,000 feet below sea level and rise 9,000–15,000 feet above the ocean floor. 海底平顶山是平顶的火山锥,位于海平面下3000-6000英尺,高出海底9000-15000英尺。
Synonym: guyot
Compare: seamount
- More examples
- Most of the 2,000 known tablemounts are concentrated in the western Pacific.
- I ran across this tablemount off the coast of southern California.
- The north-south line of tablemounts in the northwestern Pacific are in the Emperor Seamounts, also an entirely submerged range.
- Reed Bank, a tablemount near the Philippine coast, is rich in untapped oil and gas deposits.