Abstract
A carbonatite plug discovered in the Savukoski district in North Finland covering an area of more than 20 km 2 and cutting through the pre-Karelian granite gneiss basement, consists mainly of sövite and is surrounded by a fenitized aureole. Considerable regolithic apatite concentrations are known and pyrochlore is common. Accessory minerals and elements are those typical of carbonatites. Radiometric datings give 350 m. y.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have