Acta Geologica Hungarica
Volume/Issue:
Volume 46: Issue 3
Monazite Th-U-total Pb ages of "bostonite" and granite in the Mecsek and Velence Hills
Authors:
György Pantó Laboratory for Geochemical Research, Hungarian Academy of Sciences, Budapest H-1112 Budapest, Budaörsi út 45, Hungary

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and
Géza Nagy Laboratory for Geochemical Research, Hungarian Academy of Sciences, Budapest H-1112 Budapest, Budaörsi út 45, Hungary

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Pages:
255–267
Online Publication Date:
22 Jul 2005
Publication Date:
01 Dec 2003
Article Category:
Research Article
DOI:
https://doi.org/10.1556/ageol.46.2003.3.2
Keywords:
monazite; monazite; monazite; Th-U-total Pb dating; electron microprobe; Cretaceous volcanism; Variscan granitoids
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The age determination method based on microprobe measurements of the Th, U and Pb contents of monazite, and used since the nineties, was applied to Hungarian igneous rocks: the so-called "bostonite" and the granitoids of the Velence Hills and Mecsek Mountains. Measurement results were evaluated by two different methods that produced similar ages; for the sake of precaution the obtained values were mostly accepted by the greater uncertainty domain calculated by linear regression. The age of 117±13 Ma for the "bostonite" proves that this rock is a member of the Lower Cretaceous igneous series. The age of 210±18 Ma obtained for the Nadap granite in the Velence Hills agrees with published data while that of 255±17 Ma obtained for the Kismórágy microgranite in the Mecsek Mountains is younger than previously known.

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Cover Acta Geologica Hungarica
Acta Geologica Hungarica
Print ISSN:
0236-5278
Online ISSN:
1588-2594

Acta Geologica Hungarica
Language English
Size  
Year of
Foundation		 1952
Publication
Programme		 changed title
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per Year		  
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per Year		  
Founder Magyar Tudományos Akadémia  
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5278 (Print)
ISSN 1588-2594 (Online)

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