LA-ICP-MS and SIMS U-Pb and U-Th zircon geochronological data of Late Pleistocene lava domes of the Ciomadul Volcanic Dome Complex (Eastern Carpathians)

Data in Brief. 2018;18:808-813

 

Journal Homepage

Journal Title: Data in Brief

ISSN: 2352-3409 (Online)

Publisher: Elsevier

LCC Subject Category: Medicine: Medicine (General): Computer applications to medicine. Medical informatics | Science: Science (General)

Country of publisher: United States

Language of fulltext: English

Full-text formats available: PDF, HTML

 

AUTHORS

Réka Lukács (MTA-ELTE Volcanology Research Group, 1117, Budapest Pázmány Péter sétány 1/C, Budapest, Hungary; Corresponding author.)
Marcel Guillong (Institute of Geochemistry and Petrology, Department of Earth Sciences, ETH Zürich, Clausiusstrasse 25, 8092 Zürich, Switzerland)
Axel K. Schmitt (Institute of Earth Sciences, Ruprecht-Karls University, Heidelberg, Germany)
Kata Molnár (Department of Petrology and Geochemistry, Eötvös Loránd University, 1117, Budapest Pázmány Péter sétány 1/C, Budapest, Hungary)
Olivier Bachmann (Institute of Geochemistry and Petrology, Department of Earth Sciences, ETH Zürich, Clausiusstrasse 25, 8092 Zürich, Switzerland)
Szabolcs Harangi (MTA-ELTE Volcanology Research Group, 1117, Budapest Pázmány Péter sétány 1/C, Budapest, Hungary; Department of Petrology and Geochemistry, Eötvös Loránd University, 1117, Budapest Pázmány Péter sétány 1/C, Budapest, Hungary)

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Time From Submission to Publication: 4 weeks

 

Abstract | Full Text

This article provides laser-ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and secondary ionization mass spectrometry (SIMS) U-Pb and U-Th zircon dates for crystals separated from Late Pleistocene dacitic lava dome rocks of the Ciomadul Volcanic Dome Complex (Eastern Carpathians, Romania). The analyses were performed on unpolished zircon prism faces (termed rim analyses) and on crystal interiors exposed through mechanical grinding an polishing (interior analyses). 206Pb/238U ages are corrected for Th-disequilibrium based on published and calculated distribution coefficients for U and Th using average whole-rock and individually analyzed zircon compositions. The data presented in this article were used for the Th-disequilibrium correction of (U-Th)/He zircon geochronology data in the research article entitled “The onset of the volcanism in the Ciomadul Volcanic Dome Complex (Eastern Carpathians): eruption chronology and magma type variation” (Molnár et al., 2018) [1].