单词 | megaplume |
释义 | > as lemmasmegaplume megaplume n. Brit. , U.S. a large thermal plume, spec. a short-lived, massive hydrothermal plume.ΚΠ 1973 Nature 31 Aug. 566/2 Broad thermal highs, or megaplumes, with horizontal dimensions measurable in hundreds of km, lay beneath the crust and remained active over long periods. 1989 Jrnl. Geophysical Res. B. 94 12232/1 A steady state black smoker flow can be periodically interrupted by outbursts of very rapid flow, giving rise to a normal hydrothermal plume with periodic megaplumes rising through and above it. < as lemmas |
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