32KaB.P.以来东北二龙湾玛湖沈积序列的粒度特征及其古环境意义32KaB.P.以來東北二龍灣瑪湖瀋積序列的粒度特徵及其古環境意義 32KaB.P.이래동북이룡만마호침적서렬적립도특정급기고배경의의 Grain size distribution patterns and paleoenvironmental implications of the sedimentary sequence in the Erlongwan maar lade, North East China for the last 32 ka
