Record details

Title
    U-Pb single grain dating of detrital zircon in the Cambrian of central Poland: implications for Gondwana versus Baltica provenance studies
Statement of responsibility
    P. Valverde-Vaquero, Wolfgang Dörr, Z. Belka, Werner Franke, Janina Wiszniewska, J. Schastok
Author
    Belka, Z.
    Dörr, Wolfgang
    Franke, Werner
    Schastok, J.
    Valverde-Vaquero, P.
    Wiszniewska, Janina
Language
    anglicky
Source title - serial
    Earth and planetary science letters
Vol./nr.
    Vol. 184, no. 1
Pages
    p. 225-240
Year
    2000
Notes
    7 obr., 2 tab., 48 bibl.
    il.
    Zkr. název ser.: Earth planet. Sci. Lett.
Subject group
    brunovistulikum
    datování U/Pb
    Gondwana
    kambrium
    klastické částice
    oblast snosová
    ortorula
    paleogeografie
    paleozoikum-spodní
    pískovce
    prekambrium
    profil vrtný
    terán
    vrásnění kadomské
    zirkon
    zóna suturová
Geographical name
    ČR-Morava
    Evropa východní
    Polsko
Keyword
    Baltica
    Cambrian
    Central
    Dating
    Detrital
    Gondwana
    Grain
    Implications
    Poland
    Provenance
    Single
    Studies
    U-Pb
    Zircon
Abstract (in english)
   provenance study of detrial zircon has been carried out in Middle Cambrian sandstones from the Lysegory Unit (Holy Cross Mountains) and the East European Platform (EEP, Baltica) to investigate the docking of terranes along the Trans-European Suture Zone (TESZ) during the Paleozoic. Paleontological evidence suggests that the Lysogory Massif is a peri-Gondwana-derived terrane which did not reach the Baltic realm before Ordovician times. For a comparison with the adjacent sequence in the EEP, across the TESZ, we have analyzed samples from borehole Okuniew IG-1 (15 km east of Warsaw), which contains Baltic faunas. The age spectrum of the detrius in the Cambrian of the Lysogory Massif (19 analyses) reflects input of sources with ca. 600 Ma, ca. 1.8-2.0 Ga, and 2.5 Ga zircon ages. In the EEP (Okniew borehole; 19 analyses), the U-Pb data demonstrate input from sources with ca. 530-700 Ma, 0.1-1.2 Ga, 1.5 Ga, ca. 1.8-2.0 Ga, 2.2 Ga, and >2.5 Ga zircon ages.
   Additionally, in this borehole the crystalline basement has been dated at 1800˝6 Ma. These new data show that Late Neoproterozoic zircon ages are not restricted to peri-Gondwana sources and that provenance studies across the TESZ are more complex than expected
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    20. 8. 2007
Import date
    8. 8. 2012