Podrobnosti záznamu

Název
    Provenance and post-depositional low-temperature evolution of the James Ross Basin sedimentary rocks (Antarctic Peninsula) based on fission track analysis
Další názvy
    Provenience a postdepoziční nízkoteplotní vývoj sedimentárních hornin pánve Jamese Rosse (Antarktický poloostrov) podle fission track analýz
Autor
    Filip, Jiří
    Mixa, Petr
    Murakami, Masaki
    Nývlt, Daniel
    Svojtka, Martin
    Vávrová, Jitka
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Antarctic Science
Svazek/č.
    Roč. 21, č. 6
Strany
    15
Rok
    2009
Výraz tezauru
    James Ross Island, Seymour Island, Cretaceous-Palaeogene succession, fission track dating, zircon, apatite
Klíčové slovo
    Analysis
    Antarctic
    Based
    Basin
    Evolution
    Fission
    James
    Low-temperature
    Peninsula
    Post-depositional
    Provenance
    Rocks
    Ross
    Sedimentary
    Track
Abstrakt (anglicky)
   Zircon and apatite fission track (AFT) thermochronology was applied to the James Ross Basin sedimentary rocks from James Ross and Seymour islands. The probable sources of these sediments were generated in Carboniferous to Early Paleogene times (~315 to 60 Ma). The total depths of individual James Ross Basin formations are discussed. The AFT data were modelled, and the thermal history model was reconstructed for samples from Seymour Island. The first stage after a period of total thermal annealing (when the samples were above 120°C) involved Late Triassic cooling (~230 to 200 Ma) and is followed by a period of steady cooling through the whole apatite partial annealing zone (PAZ, 60-120°C) to minimum temperature in Paleocene/Early Eocene. The next stage was the maximum burial of sedimentary rocks in the Eocene (~35 Ma, 1.1-1.8 km) and the final cooling and uplift of Seymour Island sedimentary rocks at ~35 to 20 Ma.
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (RIV)
Zdrojový formát
    R
Datum importu
    15. 10. 2014