Publication details
Diamond and coesite discovered in Saxony-type granulite: Solution to the Variscan garnet peridotite enigma
| Authors | |
|---|---|
| Year of publication | 2011 |
| Type | Article in Periodical |
| Magazine / Source | Geology |
| MU Faculty or unit | |
| Citation | |
| Keywords | diamond; coesite; high-pressure granulite; peridotite; Bohemian Massif; tectonometamorphic model |
| Description | 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. |