Record details

Title
    Diamond and coesite discovered in Saxony-type granulite: Solution to the Variscan garnet peridotite enigma
Author
    Kotková, Jana
    O´Brien, Patrick
    Ziemann, Martin
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Geology
Vol./nr.
    Roč. 39, č. 7
Pages
    4
Year
    2011
Thesaurus term
    diamond, coesite, high-pressure granulite, peridotite, Bohemian Massif, tectonometamorphic model
Keyword
    Coesite
    Diamond
    Discovered
    Enigma
    Garnet
    Granulite
    Peridotite
    Saxony-type
    Solution
    Variscan
Abstract (in english)
   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.
Contributor
    Česká geologická služba
Contributor code
    ČGS (RIV)
Source format
    R
Import date
    15. 10. 2014