单词	subaerial
释义	subaerial /sʌbˈɛːrɪəl / adjective Geology Existing, occurring, or formed in the open air or on the earth’s surface, not under water or underground: subaerial erosion... The first cycle initiated in the early Paleocene and represents a transition from Cretaceous marine turbidites and shales to subaerial fluvial sandstones and conglomerates. This scenario requires that a narrow zone of marine shale deposition should occur while the rest of the basin was undergoing subaerial erosion. The presence of locally interbedded airfall tuffs implies subaerial (or at least shallow-water) eruption. Derivatives subaerially adverb ... The long time during which the continental interiors had been subaerially weathered and lowered by erosion was succeeded by one of progressive flooding and coverage by shallow seas. Some external black glass is noted where the tubes may have been exposed subaerially during formation, but no exogenic specimens were noted. The volcanic pile built up above sea level so that lavas began to be erupted subaerially.
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