LEADER 00000nam 2200241 a 4500 001 0524077 003 UkHlHU 007 t 008 002101 2 1971 000 eng 040 UkHlHU 050 4 QE 1 C73 B9(247) 100 0 Paakkola, Juhani. 245 04 The volcanic complex and associated manganiferous iron formation of the Porkonen-Pahtavaara area in Finnish Lapland. 260 Otaniemi :|bGeologinen tutkimuslaitos,|c1971. 300 83p. 440 0 Bulletin de la commission geologique de Finlande ;|vno.247 650 0 Petrography|xPetrology|xRocks. 650 0 Igneous rocks|xTephra|xTuffs. 946 650 |a & |x subfields only. In at least one case all subfields comprise single words only -- Check for Geac subject headings 946 650 has non-LCSH elements -- Check for Geac subject headings
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