Record details

Title
    Missing link between ultra-high pressure (UHP) and ultra-high temperature metamorphism (UHT); A case study in the Bohemian Massif
Author
    Hirajima, T.
    Naemura, K.
    Nakamura, D.
    Sai, H.
    Svojtka, Martin
Conference
    General Meeting of the International Mineralogical Association. Expansion to Nano, Bio, and Planetary Worlds (19. : 23.07.2006-28.07.2006 : Kobe, Japonsko)
Language
    anglicky
Publication type
    abstrakt
Source title - monograph
    19th General Meeting of the International Mineralogical Association. Expansion to Nano, Bio, and Planetary Worlds
Notes
    Projekt: ME 679, GA MŠk
    Překlad názvu: Chybějící vazba mezi ultra-vysoce tlakovým (UHP) a ultra-vysoce teplotní metamorfózou (UHT):na příkladu Českého masivu
    Rozsah: 1 s.
    Výzkumný záměr: CEZ:AV0Z30130516
Subject category
    granulite
    Moldanubian Zone
    UHP/UHT
Keyword
    Bohemian
    Case
    Link
    Massif
    Metamorphism
    Missing
    Pressure
    Study
    Temperature
    UHP
    UHT
    Ultra-high
Abstract (in english)
   Ultra-high pressure (UHP) and ultra-high temperature (UHT) metamorphic rocks represent the extreme metamorphism which attracts many attentions during these decades. The formation of UHP rock can be explained by the subduction of crustal materials at least to upper mantle depths and the subsequent exhumation to the surface escaping from the pervasive re-crystallization in the crust. The formation of UHT rocks needs local/regional heating up to 900-1100oC under almost H2O free conditions. Newly found Grt-peridotite lens hosted by granulite at Plešovice in the Blanský les massif recorded peak P-T conditions of 900-950oC and 30-33kbar. The peak temperature is almost identical among the granulite and the peridotite, but there is a significant pressure gap at peak conditions.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012