School of Environment
Sonja Storm

Job title: PhD Student
Phone: 64 9 373 7599 ext xxxxx
Office: Rm 1012, Bldg 301, Auckland
Postal: School of Environment, The University of Auckland, Private Bag 92019, Auckland
Email: s.storm@auckland.ac.nz
09/2006 "Diplom" in Geology, Christian-Albrechts-Universität zu Kiel; IFM-GEOMAR, Germany
Thesis title: Genesis of silicic magmas in Iceland: Significance for crustal formation
since August 2009
PhD Candidate, School of Environment, The University of Auckland, New Zealand
03/2008 – 03/2009
Graduate Exploration Geologist, Encounter Resources Limited, Perth, Australia
02/2007 – 02/2008
Exploring Outback Australia
11/2006
Student assistant, marine geological expedition with RV “Maria S. Merian”, Fort-de-France – Fort-de-France (Martinique)
10/2005 – 08/2006
Student assistant in the research divison “Magmatic and Hydrothermal Systems”, IFM-GEOMAR, Germany
08/2005
Student assistant, marine geological expedition with RV “Poseidon”, Akureyri – Akureyri (Iceland)
11/2004 – 12/2004
Student assistant, marine geological expedition with RV “Meteor”, Recife (Brazil) – Walvis Bay (Namibia)
09/2004 – 10/2004
Internship in melt inclusion studies, Australian Research Special Centre for Ore Deposit Research (CODES SRC) and Department of Earth Sciences of the University of Tasmania, Australia
11/2002 – 08/2004
Student assistant in the Department of Mineralogy/Petrology, Institute of Geosciences, Christian-Albrechts-Universität zu Kiel, Germany
10/2001 – 09/2006
Studies in Geology, Christian-Albrechts-Universität zu Kiel, Germany
Field work pictures
Mapping in Heimaey / Iceland

Greenfield exploration in Western Australia



Zircon geochronology of rhyolites from Tarawera Volcano / New Zealand


Research
Provisional thesis title:
Crystallisation history of rhyolite magmas at Tarawera volcano, New Zealand, from in-situ 238U-232Th disequilibrium dating of zircon
Supervisors:
Assoc Prof Phil Shane, School of Environment, The University of Auckland
Dr Jan M. Lindsay, School of Environment, The University of Auckland
Advisor:
Adj Assoc Prof Axel K. Schmitt, University of California Los Angeles
My research is on the evolution history of rhyolite magmas at Tarawera volcano in the Okataina Volcanic Center, central North Island of New Zealand. I investigate the crystallisation history of zircon crystals through in-situ U-Th geochronology in collaboration with UCLA to understand the processes and controls on rhyolite production at Tarawera. The stratigraphy, geochemistry, and petrology are well known from previous work, but this is the first attempt to apply U-Th methods to its eruption deposits. With this study we will provide the important temporal dimension to the study of magma evolution. Understanding mechanisms of silicic magma generation and timescales of differentiation and melt extraction is essential for modelling future events and forecasting future activity.

Picking zircon under the binocular microscope Cathodoluminescence image of oscillatory zoned zircon

Ion-microprobe work at UCLA
Tutoring
GEOLOGY 203 (2010, 2011)
GEOLOGY 304 (2010, 2011)
Professional Memberships
American Geophysical Union
Geological Society of New Zealand
Awards and Scholarships
University of Auckland International Doctoral Scholarship, 2009-2012
Best student talk, GSNZ conference, Auckland, Nov 2010
Shane, P., Storm, S., Schmitt, A.K. and Lindsay, J.M. (2012). Timing and conditions of formation of granitoid clasts erupted in recent pyroclastic deposits from Tarawera Volcano (New Zealand). Lithos 140-141, 1-10.
Storm, S., Shane, P., Schmitt, A. K. & Lindsay, J. M. (2012). Decoupled crystallization and eruption histories of the rhyolite magmatic system at Tarawera volcano revealed by zircon ages and growth rates. Contributions to Mineralogy and Petrology 163, 505-519.
Storm, S., Shane, P., Schmitt, A. K. & Lindsay, J. M. (2011). Contrasting punctuated zircon growth in two syn-erupted rhyolite magmas from Tarawera volcano: Insights to crystal diversity in magmatic systems. Earth and Planetary Science Letters 301, 511-520.
Conference Presentations
Storm, S., Shane, P., Schmitt, A. K. & Lindsay, J. M.: Evolution of the magma system at Tarawera volcano, New Zealand, from U-Th disequilibrium dating of zircon. IUGG, Melbourne, 03-07 Jul 2011.
Storm, S., Shane, P., Schmitt, A. K. & Lindsay, J. M.: Contrasting protracted and punctuated zircon growth in two syn-erupted rhyolite magmas from Tarawera volcano: insights to the heterogeneity of crystal mush. American Geophysical Union, San Francisco, 13-17 Dec 2010, (poster).
Storm, S., Shane, P., Schmitt, A. K. & Lindsay, J. M.: Independent zircon crystallisation histories revealed in syn-erupted rhyolite magmas from the 21.8 ka Okareka eruption episode, New Zealand: Insights to the heterogeneity of crystal mush. Geological Society of New Zealand conference, Auckland, 22-24 Nov 2010.
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Subjects



