Rb–Sr muscovite age of a pegmatite near Sivakkavaara, Finland
Isotopic analysis of five large books of muscovite from a pegmatite emplaced between the third and fourth deformational phases of the Svecokarelian orogenic episode indicate crystallization before 1880 m.y. with regional temperatures remaining elevated for about 120 m.y. The data are used to assess...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
Geological Society of Finland
1977-06-01
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Series: | Bulletin of the Geological Society of Finland |
Online Access: | http://www.geologinenseura.fi/bulletin/Volume49/sgs_bt_049_1_pages_007_010.pdf |