Unravelling complex shrimp U-Pb zircon ages for Palaeozoic and Mesozoic magmatic rocks: fact or artefact

U-Pb zircon geochronology is one of the most widely used tools to determine the crystallization ages of magmatic rocks and the timing of high grade metamorphism. The mineraI zircon is particularly robust and retains information about crustaJ history even through melting events. There are now a varie...

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Autores principales: Fanning, M. C., Pankhurst, R. J., Rapela, Carlos Washington, Hervé, F.
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2003
Materias:
Ciencias Naturales
Geochronology
magmatic rocks
zircon
SHRIMP U-Pb analyses
age dispersions
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/164216
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-164216
record_format dspace
spelling I19-R120-10915-1642162024-03-25T20:09:03Z http://sedici.unlp.edu.ar/handle/10915/164216 Unravelling complex shrimp U-Pb zircon ages for Palaeozoic and Mesozoic magmatic rocks: fact or artefact Fanning, M. C. Pankhurst, R. J. Rapela, Carlos Washington Hervé, F. 2003 2003 2024-03-25T18:23:54Z en Ciencias Naturales Geochronology magmatic rocks zircon SHRIMP U-Pb analyses age dispersions U-Pb zircon geochronology is one of the most widely used tools to determine the crystallization ages of magmatic rocks and the timing of high grade metamorphism. The mineraI zircon is particularly robust and retains information about crustaJ history even through melting events. There are now a variety of analytical methods available to determine U-Pb ages, and the more widely used methods are: (1) conventional wet chemistry, isotope dilution thermal ionisation mass spectrometry (IDTIMS), (2) Sensitive High Resolution Ion Microprobe (SHRIMP) and (3) laser ablation ICP MS (LAM-ICP). Each method has it particular strengths, and weaknesses, but it is our contention that the particular complexities to be discussed in this paper are a consequence of geological processes resulting in multiple generations of zircon crystaJlisation over relatively short periods of time. Centro de Investigaciones Geológicas Objeto de conferencia Objeto de conferencia http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 549-552
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Geochronology
magmatic rocks
zircon
SHRIMP U-Pb analyses
age dispersions
spellingShingle Ciencias Naturales
Geochronology
magmatic rocks
zircon
SHRIMP U-Pb analyses
age dispersions
Fanning, M. C.
Pankhurst, R. J.
Rapela, Carlos Washington
Hervé, F.
Unravelling complex shrimp U-Pb zircon ages for Palaeozoic and Mesozoic magmatic rocks: fact or artefact
topic_facet Ciencias Naturales
Geochronology
magmatic rocks
zircon
SHRIMP U-Pb analyses
age dispersions
description U-Pb zircon geochronology is one of the most widely used tools to determine the crystallization ages of magmatic rocks and the timing of high grade metamorphism. The mineraI zircon is particularly robust and retains information about crustaJ history even through melting events. There are now a variety of analytical methods available to determine U-Pb ages, and the more widely used methods are: (1) conventional wet chemistry, isotope dilution thermal ionisation mass spectrometry (IDTIMS), (2) Sensitive High Resolution Ion Microprobe (SHRIMP) and (3) laser ablation ICP MS (LAM-ICP). Each method has it particular strengths, and weaknesses, but it is our contention that the particular complexities to be discussed in this paper are a consequence of geological processes resulting in multiple generations of zircon crystaJlisation over relatively short periods of time.
format Objeto de conferencia
Objeto de conferencia
author Fanning, M. C.
Pankhurst, R. J.
Rapela, Carlos Washington
Hervé, F.
author_facet Fanning, M. C.
Pankhurst, R. J.
Rapela, Carlos Washington
Hervé, F.
author_sort Fanning, M. C.
title Unravelling complex shrimp U-Pb zircon ages for Palaeozoic and Mesozoic magmatic rocks: fact or artefact
title_short Unravelling complex shrimp U-Pb zircon ages for Palaeozoic and Mesozoic magmatic rocks: fact or artefact
title_full Unravelling complex shrimp U-Pb zircon ages for Palaeozoic and Mesozoic magmatic rocks: fact or artefact
title_fullStr Unravelling complex shrimp U-Pb zircon ages for Palaeozoic and Mesozoic magmatic rocks: fact or artefact
title_full_unstemmed Unravelling complex shrimp U-Pb zircon ages for Palaeozoic and Mesozoic magmatic rocks: fact or artefact
title_sort unravelling complex shrimp u-pb zircon ages for palaeozoic and mesozoic magmatic rocks: fact or artefact
publishDate 2003
url http://sedici.unlp.edu.ar/handle/10915/164216
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