Record details

Title
    Zircon and apatite fission-track dating of the James Ross Basin sediments (Antarctic Peninsula)
Author
    Filip, Jiří
    Macáková, J.
    Mixa, P.
    Murakami, M.
    Nývlt, D.
    Svojtka, Martin
Conference
    CzechTec 07. Meeting of the Central European Tectonic Studies Group (CETeG : 5.) and Meeting of the Czech Tectonic Studies Group (ČTS : 12. : 11.04.2007-14.04.2007 : Teplá, Česká republika)
Language
    anglicky
Publication type
    abstrakt
Source title - monograph
    Proceedings and excursion guide
Pages
    S. 84-84
Notes
    Projekt: 1K05030, GA MŠk
    Překlad názvu: Zirkonové a apatitové fission-trackové datování sedimentů ostrova James Ross (Antarktický poloostrov)
    Rozsah: 1 s.
    Výzkumný záměr: CEZ:AV0Z30130516
Subject category
    apatite
    James Ross Island
    zircon
Keyword
    Antarctic
    Apatite
    Basin
    Dating
    Fission-track
    James
    Peninsula
    Ross
    Sediments
    Zircon
Abstract (in english)
   All zircons are older than apatite FT ages provided in the identical individual rocks. Provenance of individual FT zircons and apatites ages varies in wide spread of Carboniferous to Early Paleogene ages between ~60 to ~350 Ma. Jurassic-Cretaceous ages of northwest James Ross Island are probably compatible with derivation of sediment from western lying Mt. Reece and Mt. Bradley region, where the rocks of the Antarctic Peninsula batholith appears. Sediments from Seymour Island are probably originating from Trinity Peninsula Group and Antarctic Peninsula Volcanic Group. Shortening of tracks was due to subsequent volcanic/magmatic activity before transport of rocks and deposition into the James Ross Basin or alternatively, due to volcanic reheating after deposition. All zircons are older than apatite FT ages provided in the identical individual rocks.
   Provenance of individual FT zircons and apatites ages varies in wide spread of Carboniferous to Early Paleogene ages between ~60 to ~350 Ma. Jurassic-Cretaceous ages of northwest James Ross Island are probably compatible with derivation of sediment from western lying Mt. Reece and Mt. Bradley region, where the rocks of the Antarctic Peninsula batholith appears. Sediments from Seymour Island are probably originating from Trinity Peninsula Group and Antarctic Peninsula Volcanic Group. Shortening of tracks was due to subsequent volcanic/magmatic activity before transport of rocks and deposition into the James Ross Basin or alternatively, due to volcanic reheating after deposition. All zircons are older than apatite FT ages provided in the identical individual rocks. Provenance of individual FT zircons and apatites ages varies in wide spread of Carboniferous to Early Paleogene ages between ~60 to ~350 Ma.
   Jurassic-Cretaceous ages of northwest James Ross Island are probably compatible with derivation of sediment from western lying Mt. Reece and Mt. Bradley region, where the rocks of the Antarctic Peninsula batholith appears. Sediments from Seymour Island are probably originating from Trinity Peninsula Group and Antarctic Peninsula Volcanic Group. Shortening of tracks was due to subsequent volcanic/magmatic activity before transport of rocks and deposition into the James Ross Basin or alternatively, due to volcanic reheating after deposition.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012