檢視顶积层的原始碼

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中文名；顶积层

外文名；top set，topset bed

学    科；第四纪地质学

释    文；三角洲顶部的陆上沉积物
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'''顶积层'''（top set）是指三角洲顶部的陆上[[沉积物]]，主要由河流的砂质沉积物及[[泥炭沼泽沉积]]组成，常可见层理。<ref>[https://www.docin.com/p-562072165.html 湖泊相],豆丁网 , 2012年12月24日</ref>