Record details

    Provenance and post-depositional low-temperature evolution of the James Ross Basin sedimentary rocks (Antarctic Peninsula) based on fission track analysis
    Filip, Jiří
    Mixa, P.
    Murakami, Masaki
    Nývlt, D.
    Svojtka, Martin
    Vávrová, J.
Publication type
    článek v odborném periodiku
Source title - serial
    Antarctic Science
    Roč. 21, č. 6
    s. 593-607
    Projekt: 1K05030, GA MŠk
    Rozsah: 15 s. : WWW
    Výzkumný záměr: CEZ:AV0Z30130516
Subject category
    Cretaceous-Palaeogene succession
    fission track dating
    James Ross Island
    Seymour Island
Abstract (in english)
   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 120oC) 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, 60-120oC) 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.
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
Import date
    8. 8. 2012