Record details

Title
    Provenance and post-depositional low-temperature evolution of the James Ross Basin sedimentary rocks (Antarctic Peninsula) based on fission track analysis
Author
    Filip, Jiří
    Mixa, P.
    Murakami, Masaki
    Nývlt, D.
    Svojtka, Martin
    Vávrová, J.
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Antarctic Science
Vol./nr.
    Roč. 21, č. 6
Pages
    s. 593-607
Year
    2009
Notes
    Projekt: 1K05030, GA MŠk
    Rozsah: 15 s. : WWW
    Výzkumný záměr: CEZ:AV0Z30130516
Subject category
    apatite
    Cretaceous-Palaeogene succession
    fission track dating
    James Ross Island
    Seymour Island
    zircon
Keyword
    Analysis
    Antarctic
    Based
    Basin
    Evolution
    Fission
    James
    Low-temperature
    Peninsula
    Post-depositional
    Provenance
    Rocks
    Ross
    Sedimentary
    Track
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.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012