单词 | air-fall |
释义 | > as lemmasair-fall air-fall n. Geology the falling to earth of ash, pyroclastic fragments, etc., from the clouds ejected in a volcanic eruption; an instance of this; usually attributive. ΚΠ 1964 Amer. Mineralogist 49 260 Determinations..are presented in three groups—Table 2, air-fall pumice; Table 3, air-fall ash; and Table 4, ash-flow materials. 1991 Antiquity 65 788/1 No archaeological remains are recorded as sealed by airfall material from either the massive Taupo eruption of c. 1800 b.p. or the Kaharoa eruption. 2007 Jrnl. Volcanol. & Geothermal Res. 161 35 Air-falls and viscous mudflows were discharged from two craters. < as lemmas |
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