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The geological surveys of Finland and Norway and the Central Kola Expedition in Russia are carrying out a geochemical mapping project in a 188,000 km 2 area north of the Arctic Circle. Several sample media (terrestrial moss, organic topsoil (0-3 cm), topsoil (0-5 cm), complete podzol profiles) were collected throughout the area during the summer of 1995 at an average density of one sample...
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