Bulletin of the Geological Society of Finland 1999:2

Bulletin of the Geological Society of Finland 2/1999 contains the following articles: Joakim Donner, Weichselian glacial stratigraphy in Hyvinkää, southern Finland; Brent A. Elliott, Colour masks in digital image analysis: a technique for modal analyses of quartz saturated plutonic rocks; Enn Karro, Quality of bedrock groundwater in western Finland, with special reference to nitrogen compounds; Mare Konsa and Väinö Puura, Provenance of zircon of the lowermost sedimentary cover, Estonia, East-European Craton; Paula Kosunen, The rapakivi granite plutons of Bodom and Obbnäs, southern Finland: petrography and geochemistry; Hannu Mäkitie, Structural analysis and metamorphism of Palaeoproterozoic metapelites in the Seinäjoki-Ilmajoki area, western Finland; Harry Stel, Douwe van Rees and Bart Schenke, Strain analysis in the Orijärvi triangle, southwestern Finland; in perspective of tectonic models; Tapani Rämö, Sr isotopic composition of Finnish rapakivi granites: the Suomenniemi batholith.