Pollen density in sediment cores from St. Louis River and Lake Superior, Minnesota, USA@en
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资源简介：
Pollen density is measured per dry weight of sediment.
TRSHR - Trees & shrubs group
UPHRB - Upland herbs group
WETEM - Wetland emergents group
AQUAT - Aquatics group
PTERI - Pteridophytes group
SPORE - Spore group
创建时间：
2026-04-08
