Informace o publikaci
Diamond and coesite discovered in Saxony-type granulite: Solution to the Variscan garnet peridotite enigma
| Název česky | Nález diamantu v granulitech saského typu: řešení enigmatu variských granátických peridotitů |
|---|---|
| Autoři | |
| Rok publikování | 2011 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Geology |
| Fakulta / Pracoviště MU | |
| Citace | |
| Klíčová slova | diamond; coesite; high-pressure granulite; peridotite; Bohemian Massif; tectonometamorphic model |
| Popis | Diamond and coesite were discovered in-situ as inclusions in garnet, kyanite and zircon in high-pressure granulites from northern Bohemian Massif. These continental crustal rocks were therefore subducted to depths of c. 140 km, which also explains their common association with mantle garnet-bearing peridotites. Models involving crustal thickening for these high-pressure granulites need to be significantly modified. Whole Variscan belt with numerous HP granulite occurrences can represent a large ultrahigh-pressure terrain. |