U-Pb single-grain dating of detrital zircon in the Cambrian of central Poland; implications for Gondwana versus Baltica provenance studies

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doi: 10.1016/S0012-821X(00)00312-5
Authors:Valverde-Vaquero, P.; Dörr, W.; Belka, Z.; Franke, W.; Wiszniewska, J.; Schastok, J.
Author Affiliations:Primary:
Justus-Liebig Universität, Institut für Geowissenschaften, Giessen, Federal Republic of Germany
Other:
University Halle-Wittenberg, Federal Republic of Germany
Polish Geological Institute, Poland
Volume Title:Earth and Planetary Science Letters
Source:Earth and Planetary Science Letters, 184(1), p.225-240. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0012-821X
Publication Date:2000
Note:In English. 48 refs.; illus., incl. sect., strat. col., 2 tables, sketch maps
Summary:A provenance study of detrital zircon has been carried out in Middle Cambrian sandstones from the Lysogory 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-Gondwanan-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 detritus 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 (Okuniew borehole; 19 analyses), the U-Pb data demonstrate input from sources with ca. 530-700 Ma, 1.0-1.2 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-Gondwanan sources and that provenance studies across the TESZ are more complex than expected. Abstract Copyright (2000) Elsevier, B.V.
Sections:Age determination
Subjects:Absolute age; Baltica; Basement; Cambrian; Clastic rocks; Cores; Dates; Detritus; Gondwana; Middle Cambrian; Neoproterozoic; Nesosilicates; Orthosilicates; Paleogeography; Paleoproterozoic; Paleozoic; Precambrian; Proterozoic; Provenance; Sandstone; Sedimentary rocks; Silicates; Single-crystal method; Suture zones; Svecofennian; Terranes; U/Pb; Upper Precambrian; Zircon; Zircon group; Central Europe; Europe; Poland; Russian Platform; Swiety Krzyz Mountains; Tornquist-Teisseyre Zone; Central Poland; Lysogory Massif; Okuniew Poland
Coordinates:N510000 N520000 E0223000 E0200000
Abstract Numbers:01M/2404
Record ID:2001013753
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands
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