Isotopic ages of Lentiira - Kuhmo - Kostomuksha olivine lamproite - Group II kimberlites
The Lentiira-Kuhmo-Kostomuksha triangle, along the Finland – Russian border and within the central part of the Archean Karelian craton, contains numerous examples of phlogopite-rich, ultramafic, mantle-xenocryst-bearing and, in some cases, diamond-bearing dike rocks. Laser probe Ar-Ar data on phlogo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Geological Society of Finland
2007-12-01
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| Series: | Bulletin of the Geological Society of Finland |
| Subjects: | |
| Online Access: | http://www.geologinenseura.fi/bulletin/Volume79/OBrien_etal_2007.pdf |