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《Seismology and Geology》 1982-02
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THE LATE PLEISTOCENE POLLEN ASSEMBLAGE IN THE VILLAGE ZHOUJIAYOUFANG, YUSHU COUNTY, JILIN PROVINCE AND ITS SIGNIFICANCE

Yan Fuhua, Ye Yongying and Mai Xueshun(Institute of Geology, National Bureau of Seismology)  
The section here concerned is situated in village Zhoujiayoufang, being on the southern slope of a loess terrace between the Songhua and Lalin rivers.A great amount of spore-pollen grains of arboreous, herbaceous and fern plants were found in the sediments of the middle and lower section. They mainly belong to genera Pinus, Picea, Betua, Carpinus, Salix, Artemisia and families Chenopod-iaceae, Gramineae, Umbelliferae or species Betula nana etc.The pollen assemblage described here indicates that the vegetation developed in the v. zhoujiayoufang during the Late Pleistocene time may represent a forest-steppe type.Many cool-temperate plant elements discovered, such as Picea, Bothychium, Betula nana prevanana, imply that in Late Pleistocene time the cold and moist climate was iling in the study area. Therefore, to authors' opinion, the second terrace was formed in the late stage of Late Pleistocene.
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