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Trinity College Dublin

Personal Information
Name Crowley, Quentin G
Main Department Geology
College Title Assistant Professor
College Tel +353 1 896 2403
Fax +353-1-6711199
Details Date
Chief Editor for the Journal of the Geological Society 2011-
The Geological Society Awards Committee 2011-
Associate Editor for Geological Society of America Bulletin 2010-
Editorial Board, Irish Journal of Earth Sciences 2011-
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Membership of Professional Institutions, Associations, Societies
Details Date From Date To
Fellow of the Geological Society, London
Mineralogical Society of America
European Union of Geosciences
Irish Geological Association
Awards and Honours
Award Date
National University Prize for highest grade in Geology at the B.Sc. (Honours) level 1993
Forbairt Petroleum Technology Scholarship 1993
Irish Geological Research Meeting (IGRM) prize for best student paper, Belfast, N. Ireland 1997
Young scientists travel grant, European Union of Geosciences 1997
Invited participant on Münchberg field workshop, Germany (Frankfurt University) 1998
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Research Interests
CALEDONIDES Earth Science Earth Sciences for Climate Research Environmental Chemistry
GRANITIC MAGMAS Geochemistry Geochronology Geology
ISOTOPES Igenous and metamorphic petrology Isotope Geochemistry MIGRATION
Petrology Radioactivity Stratigraphy Structural Geology
Tectonics Volcanology ZIRCONS
Research Projects
Project title Sr Isotopes and the Irish Biosphere
Funding Agency TCD
Type of Project Ph.D.
Date from 01/09/2013
Date to
Person Months

Project title Geochronology and Gold Mineralisation in the Tasiat Terrane, Mauritania
Funding Agency Kinross
Type of Project Ph.D.
Date from 01/04/2012
Date to 31/03/2015
Person Months 36

Project title Biomineralisation and Isotope Proxies for Environmental Chance
Summary Biomineralisation refers to the processes by which organisms form minerals. As a process, biomineralisation (e.g. aragonitic corals and fish teeth, otoliths and bones) is crucially important for providing substrate materials which underpin most quantitative climate, environmental and ecosystem proxy reconstructions. Isotope signatures preserved in biomineralisation (e.g. δ11B, δ18O, δ44Ca, 87Sr/86Sr, 143Nd/144Nd) may potentially act as high-resolution proxy signals for environmental conditions (e.g. water temperature, salinity, ocean circulation, pH, Eh), diet and trophic level. Consideration must be given, however, to the so-called “vital effects” on biomineralisation which some organisms exhibit such that these environmental signals can be suppressed or eliminated. Biomineralisation may also provide materials suitable for isotope dating. For instance, 230Th/234U dating of corals has been shown to be an exceptionally useful chronometer in the late Quaternary and provides some of the finest high-resolution archives of marine conditions. This interdisciplinary project is concerned with investigating key aspects of species specific and ecosystem specific isotope pathways and isotope fractionation. This will initially focus on deep sea coral-echinoid-fish ecosystems from modern Irish waters. The project will also test the utility of novel isotopes in species specific biomineralisation from a palaeo-oceanographic perspective. Analytically, a combination of modern mass spectrometry (CF-IRMS, ICP-MS, SIMS, TIMS) and imaging (e.g. SEM, synchrontron) techniques will be utilized.
Funding Agency PRTLI 5
Type of Project Ph.D.
Date from Sept 2011
Date to Aug 2015
Person Months 48

Project title Understanding Crustal Evolution of the Early Earth: The Singhbhum Craton, India
Summary Our understanding of the Earth’s early evolution in terms of crustal growth, development of habitable atmosphere-hydrosphere, development of biosphere and geodynamic processes is built upon studies of Archean-Proterozoic rock successions preserved as old cratonic nuclei and their cover sequences. The oldest among these geological terranes are Eoarchean (>3.6 billion years before present [Ga])-to-Paleoarchean (3.6-3.2 Ga) terranes. Although there has been considerable research conducted on several of these fragments of the Earth’s ancient crust, one such sequence, the Singhbhum Craton of eastern India, has received relatively little attention. Radiometric age dating of key exposure of volcanic rocks and associated sediments within the Singhbhum Craton will provide new information on the mechanisms and time-scales of development of the Earth’s early crust.
Funding Agency Trinity College and SFI
Programme FEMS India Scheme and SFI ISCA
Type of Project Collaborative (with Dr. J. Mukhopadhyay and Dr. G. Ghosh, Presidency College, Kolkata, India)
Date from 20/11/2010
Date to
Person Months

Project title The Gander Zone in Ireland
Summary Comparative terrane study between Newfoundland and Ireland investigating the presence or absence of a distinct peri-Gondwanan block. U-Pb age spectra of inherited ages in (meta) sediments, as well as U-Pb ages of inherited zircons and Sm-Nd isotope signatures (whole rock) from magmatic rocks will be used to characterise selected samples from SE Ireland and Newfoundland.
Funding Agency Ireland Newfoundland Partnership and the Geological Survey of Ireland
Type of Project Collaborative (with Brian McConnell - GSI and Julian Menuge - UCD)
Date from 2009
Date to
Person Months

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Publications and Other Research Outputs
Peer Reviewed
Crowley, Q.G., Key, R., Noble, S.R. In Press, High-precision U-Pb dating of complex zircon from the Lewisian Gneiss Complex of Scotland using an incremental CA-ID-TIMS approach, Gondwana Research, 2014
Mukhopadhyay, J., Crowley, Q.G., Ghosh, S., Ghosh, G., Chakrabarti, K., Misra, B., Heron, K., Bose, S., Oxygenation of the Archean Atmosphere: New Paleosol Constraints from Eastern India, Geology, 2014
TARA - Full Text  DOI
Crowley, Q.G., Keron, K.Y., Riggs, N., Kamber, B., Chew, D., McConnell, B., Benn, K., Chemical Abrasion Applied to LA-ICP-MS U-Pb Zircon Geochronology, Minerals, (4), 2014, p503-518
TARA - Full Text  DOI  URL
Bozkurt, E., Winchester, J.A., Satır, M., Crowley, Q.G., Ottley, C.J., The Almacık mafic-ultramafic complex: exhumed Sakarya subcrustal mantle adjacent to the İstanbul Zone, NW Turkey, Geological Magazine, 150, (2), 2013, p254-282
Pointon, M.A. , Chew, D.M., Ovtcharova, M., Sevastopulo, G.D. , Crowley, Q.G., New high-precision U-Pb dates from Western European Carboniferous tuffs; implications for timescale calibration, the periodicity of late Carboniferous cycles and stratigraphical correlation, Journal of the Geological Society, 169, (6), 2012, p713-721
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Last Updated:23-SEP-2014