Alex Iveson

Alex Iveson

Postdoctoral Research Assistant

Research Overview

My current research focuses on improving our understanding of volatile recycling at subduction zones through analysis of primitive rocks from Kamchatka.

Our project involves the in-situ analysis (EPMA, LA-ICP-MS, SIMS) of minerals, glasses, and melt inclusions to reveal systematic variations in the concentrations of H2O, C, F, Cl, S, B, and other volatile trace elements cycled through subduction zones.

CollaboratorsMadeleine Humphreys, Ivan Savov, Cees-Jan de Hoog, Frances JennerTatiana Churikova, and Colin Macpherson.

My PhD research assimilated complimentary information derived from experimental petrology (IHPV) and natural volcanic samples (Augustine volcano, AK) to better constrain the fluid-crystal-melt partitioning behaviour and fluid transport of trace and ore elements in intermediate-evolved magmatic systems, and their associated hydrothermal ore deposits (Spirit Lake Pluton/Margaret Cu-Mo porphyry deposit, Mt. St. Helens, WA).


Research Interests

  • Geochemistry
  • Igneous Petrology
  • Volcanology
  • Hydrothermal Mineralisation


BSc (Hons) Geology – The University of Edinburgh (2008 – 2012)

Mapping Dissertation: Breiðdalur, Eastern Iceland

Supervisor: Thor Thordarson (Univ. of Iceland)

PhD Geology – Washington State University (2013 – 2017)

Research Dissertation: The Magmatic-Hydrothermal Behaviour of Trace and Ore Elements Within Intermediate-Evolved Igneous Systems

Supervisors: Jim Webster (AMNH); Mike Rowe (Univ. of Auckland); John Wolff (WSU)

Webster, J.D., Iveson, A.A., Rowe, M.C. & Webster, P.M. (submitted Geochimica et Cosmochimica Acta, in review). Chlorine and Felsic Magma Evolution: Modeling the Behavior of an Under-Appreciated Volatile Component.
Iveson, A.A., Webster, J.D., Rowe, M.C. & Neill, O.K. (2019). Fluid-melt trace-element partitioning behaviour between evolved melts and aqueous fluids: Experimental constraints on the magmatic-hydrothermal transport of metals. Chemical Geology 516, 18–41 DOI: 10.1016/j.chemgeo.2019.03.029.
Iveson, A.A., Humphreys, M.C.S., Savov, I., Churikova, T.G. & Macpherson, C.G. (2018). Tracing fluid variations across the Kamchatka arc: melt inclusion volatile contents and B isotopes. Goldschmidt Conference Abstracts 2018: 4j-311.
Iveson, A.A., Rowe, M.C., Webster, J.D. & Neill, O.K. (2018). Amphibole-, clinopyroxene-, and plagioclase-melt partitioning of trace and economic metals in halogen-bearing rhyodacitic melts. Journal of Petrology 59, 1579–1604 DOI 10.1093/petrology/egy072.
Iveson, A.A., Webster, J.D., Rowe, M.C. & Neill, O.K. (2017). Major element and halogen (F, Cl) mineral-melt-fluid partitioning in hydrous rhyodacitic melts at shallow crustal conditions. Journal of Petrology 58, 2465–2492 DOI 10.1093/petrology/egy011.
Iveson, A.A., Webster, J.D., Rowe, M.C. & Neill, O.K. (2016). Experimental and natural partitioning behaviour of trace elements between hydrous evolved melts, amphibole, plagioclase, and clinopyroxene at shallow crustal conditions. AGU Conference Abstracts, 2016: V31A-3072.
Iveson, A.A., Webster, J.D., Rowe, M.C. & Neill, O.K. (2016). Magmatic-hydrothermal fluids and volatile metals in the Spirit Lake Pluton and Margaret Cu-Mo porphyry system, SW Washington, USA. Contributions to Mineralogy & Petrology 171:20 DOI 10.1007/s00410-015-1224-6.
Rowe, M.C., Iveson, A.A., et al. (2015). Variation in Volatile and Ore Metal Abundances Along the New Zealand Volcanic Arc as Recorded by Minerals and Melt Inclusions. AGU Conference Abstracts, 2015: V43C-3170.
Wolff, J.A., Iveson, A.A., et al. (2015). A clinopyroxene-plagioclase geobarometer for A-type silicic volcanic rocks. AGU Conference Abstracts, 2015: V13A-3090.
Iveson, A.A., Webster, J.D., Rowe, M.C., 2014. Fluid alteration processes and base metal sulphides at Spirit Lake Pluton, Mt. St. Helens, WA. Goldschmidt Conference Abstracts, 2014: 1100.