Isotopic Re-Os age of molybdenite from the Szklarska Poręba Huta Quarry (Karkonosze, SW Poland)

Authors

  • Wojciech Mayer AGH University of Science & Technology, Kraków, Poland
  • Robert A. Creaser University of Alberta
  • Ksenia Mochnacka AGH University of Science & Technology, Kraków, Poland
  • Teresa Oberc-Dziedzic University of Wrocław
  • Adam Pieczka AGH University of Science & Technology, Kraków, Poland

DOI:

https://doi.org/10.7306/gq.1036

Keywords:

Karkonosze granite, hydrothermal mineralisation, Re/Os isotopic age

Abstract

New Re/Os isotopic data for molybdenite from the Szklarska Poręba Huta Quarry provide ages of 307 ± 2 Ma and 309 ± 2 Ma, respectively. The quarry is dominated by the porphyritic (“central”) and equigranular (“ridge”) varieties of the Karkonosze granite. Ore mineralisation hosted in aplogranite includes an assemblage of sulphides, sulphosalts, oxides and various rare phases. The molybdenite ages obtained are consistent with a previously published isotopic age of leucogranite (aplogranite?) from the same quarry and are only slightly older than a recently published, refined 206Pb/238U age of untreated zircons from the Szklarska Poręba Huta porphyritic granite. The age of the molybdenite corresponds moderately well to the younger stage of post-magmatic, pneumatolitic/hydrothermal activity of the Karkonosze granite (about 312 Ma)

Author Biographies

Wojciech Mayer, AGH University of Science & Technology, Kraków, Poland

dr eng.Faculty of Geology, Geophysics & Environment Protection,Department of General Geology, Environment Protection and GeotourismAGH-University of Science and Technology, Kraków Poland

Robert A. Creaser, University of Alberta

professor

Ksenia Mochnacka, AGH University of Science & Technology, Kraków, Poland

emeritus professorFaculty of Geology, Geophysics & Environment Protection,Department of Economic and Mining Geology,AGH-University of Science and Technology, Kraków Poland

Teresa Oberc-Dziedzic, University of Wrocław

professor

Adam Pieczka, AGH University of Science & Technology, Kraków, Poland

dr hab., eng.Department of Mineralogy, Petrography and Geochemistry, Faculty of Geology, Geophysics and Environment Protection, AGH University of Science and Technology

Downloads

Published

2012-09-10

Issue

Vol. 56 No. 3 (2012)

Section

Articles

License

Authors who publish with this journal agree to the following terms:
  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as this can lead to productive exchanges and earlier and more frequent citation of the published work (See The Effect of Open Access).