KOTKOVÁ, Jana, Jaromír LEICHMANN and Milan NOVÁK. HT rocks from the Visean conglomerates - further evidence for an external heat source in the internal zone of European Variscides. In 18th IMA Abstracts. Edinburgh: International Mineralogical Association, 2002, p. 228.
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Basic information
Original name HT rocks from the Visean conglomerates - further evidence for an external heat source in the internal zone of European Variscides.
Authors KOTKOVÁ, Jana (203 Czech Republic, guarantor), Jaromír LEICHMANN (203 Czech Republic) and Milan NOVÁK (203 Czech Republic).
Edition Edinburgh, 18th IMA Abstracts, p. 228-228, 2002.
Publisher International Mineralogical Association
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10500 1.5. Earth and related environmental sciences
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14310/02:00007165
Organization unit Faculty of Science
Keywords in English Upper Visean; conglomerates; granulites; volcanics; high pressure; U-Pb dating; zircon; high temperature; volcanic arc; exhumation; exhumation rate
Tags conglomerates, exhumation, exhumation rate, granulites, high pressure, high temperature, U-Pb dating, Upper Visean, volcanic arc, volcanics, zircon
Changed by Changed by: prof. RNDr. Jaromír Leichmann, Dr. rer. nat., učo 1923. Changed: 22/5/2003 10:11.
Abstract
Granulites found in clasts in Upper Visean conglomerates of the Drahany Uplands feature a strong overprint at medium pressure and high temperature. Geothermobarometry, mineral zoning and reaction textures are consistent with two-stage exhumation, characterized by first isothermal decompression and second near-to-isobaric cooling. Zircon, monazite and rutile U-Pb data are consistent with the two-stage exhumation, two, rapid consistent with the isothermal period, and slower corresponding to the isobaric stage. Possible sources of heat responsible for the medium-pressure younger overprint are discussed. chronological dating of these granulites
Links
MSM 143100004, plan (intention)Name: Geologické procesy a jejich environmentální vyústění - styk variscid a alpid
Investor: Ministry of Education, Youth and Sports of the CR, Geological Processes and their Environmental Impact - Contact of the Variscides and Alpides
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