ORCID Profile
0000-0003-4404-8607
Current Organisation
Université de Genève
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Publisher: Swiss Chemical Society
Date: 26-03-2014
Abstract: Precise determinations of the isotopic compositions of a variety of elements is a widely applied tool in Earth sciences. Isotope ratios are used to quantify rates of geological processes that occurred during the previous 4.5 billion years, and also at the present time. An outstanding application is geochronology, which utilizes the production of radiogenic daughter isotopes by the radioactive decay of parent isotopes. Geochronological tools, involving isotopic analysis of selected elements from smallest volumes of minerals by thermal ionization mass spectrometry, provide precise and accurate measurements of time throughout the geological history of our planet over nine orders of magnitude, from the accretion of the proto-planetary disk, to the timing of the last glaciation. This article summarizes the recent efforts of the Isotope Geochemistry, Geochronology and Thermochronology research group at the University of Geneva to advance the U-Pb geochronological tool to achieve unprecedented precision and accuracy, and presents two ex les of its application to two significant open questions in Earth sciences: what are the triggers and timescales of volcanic supereruptions, and what were the causes of mass extinctions in the geological past, driven by global climatic and environmental deterioration?
Publisher: Elsevier BV
Date: 07-2016
Publisher: Oxford University Press (OUP)
Date: 09-2017
Publisher: Geological Society of America
Date: 2007
DOI: 10.1130/G23768A.1
Publisher: Geological Society of America
Date: 05-2007
DOI: 10.1130/B26080.1
Publisher: Society of Economic Geologists
Date: 02-05-2013
Publisher: Elsevier BV
Date: 10-11-2008
Publisher: Geological Society of America
Date: 06-2014
DOI: 10.1130/G35434.1
Publisher: Society of Economic Geologists
Date: 07-2009
Publisher: Elsevier BV
Date: 02-2014
Publisher: Elsevier BV
Date: 12-2014
Publisher: Geological Society of America
Date: 21-07-2009
DOI: 10.1130/B26488.1
Publisher: Elsevier BV
Date: 11-2013
Publisher: Mineralogical Society of America
Date: 23-12-2015
DOI: 10.2138/AM-2015-4773
Publisher: Springer Science and Business Media LLC
Date: 08-07-2017
Publisher: Elsevier BV
Date: 2016
Publisher: Oxford University Press (OUP)
Date: 20-02-2019
Start Date: 2009
End Date: 2010
Funder: Swiss National Science Foundation
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