Oregon State University


Adam Kent

Adam Kent photo

Discipline: Geology and Geophysics
Office: Wilkinson 236
Phone: 541-737-1205
Fax: 541-737-1200
Email: adam.kent@geo.oregonstate.edu


High temperature geochemistry, Igneous petrology, In-situ elemental and isotopic analysis

Research Interests

Behavior and evolution of magmatic and volcanic systems. Studies ofsilicate melt inclusions. Development and application of in-situ traceelement and isotopic measurement techniques in the Earth Sciences.


B.Sc. (Hons) Geology , University of New England, Australia, 1989
Ph.D. Geology and Geochemistry, The Australian National University, Canberra, Australia, 1995


GEO 203 - Evolution of Planet Earth
GEO 412/512 - Igneous Petrology
GEO 430/530 - Geochemistry
GEO 535 - Geochemical Analysis Techniques
GEO 499 - Undergraduate Research Seminar
GEO 599 - Topics in Petrology and Geochemistry

Graduate Students


Jeremiah Oxford, MS, 2006
Early Oligocene Intrusions in the Central Coast Range ofOregon : Petrography, Geochemistry, Geochronology and Implications forthe Tertiary Magmatic Evolution of the Cascadia Forearc

Cristina Darr, MS, 2006
Magma Chamber Processes Over the Past 475,000 Years at MountHood , Oregon: Insights From Crystal Zoning and Crystal SizeDistribution Studies

Michael Rowe (joint with Roger Nielsen) PhD, 2006
Microanalytical And Experimental Techniques For Interpreting Magma Genesis In The Cascadia Subduction Zone

Ashley Hatfield (joint with Roger Nielsen) MS, 2008
The age and origin of Snow Peak, Oregon

Allison Weinsteiger Ph.D.
MORB and ocean crust formation processes, Melt inclusion formation

Alison Koleszar Ph.D.
Volatile contents, eruptive controls and petrology of Mount Hood andesites

Morgan Salisbury Ph.D.
Ignimbrite correlation in the Altiplano-Puna volcanic complex; Tunupa Volcano, Bolivia; Sumatran tephras

Matt Loewen M.S.
Measurement of volatile metals using LA-ICP-MS, Mobility of volatile metals in volcanic systems


Matthew Loewen (Ph.D.)
Volatile metals in volcanic system

Christine Chan (M.S.)
Single mineral studies of Cretaceous Plutons in the crystalline core of the Cascades, WA.

Daniel Eungard (M.S.)
The Mackenzie Canyon and Lower Bridge Tuffs, Deschutes Formation, Oregon.

Luc Farmer (M.S. joint with John Dilles)
Zircon crystal chemistry in mineralized intrusive rocks, Nevada

Adam Kent's Research Website

OSU VIPER (Volcanology, Igneous Petrology and Economic geology Research) Website

W.M. Keck Collaboratory for Plasma Spectrometry Website


KENT, A.J.R., DARR, C., KOLESZAR, A.K., SALISBURY, M.J. & COOPER, K.M. (2010) Preferential eruption of andesitic magmas through recharge filtering. Nature Geoscience, DOI:10.1038/NGEO924

PEATE, D.W., FALKEENA, L., and KENT, A.J.R. (2009) Origin of Pb isotope variations in hydrogenetic Fe-Mn crusts from the Izu-Bonin fore-arc, Chemical Geology, 258, 288-298.

LAYNE, G.D., KENT, A.J.R. and BACH, W. (2009) d37CI Systematics of a Back-Arc Spreading System: The Lau Basin. Geology, 37, 427-430.

MILLER, J.A. and KENT, A.J.R. (2009) The determination of maternal run time in juvenile Chinook salmon (Oncorhynchus tshawytscha) based on Sr/Ca and 87Sr/86Sr within otolith cores. Fisheries Research, 95, 373-378.

ROWE, M.C., KENT, A.J.R. and NIELSEN, R.L. (2009) Across Arc Variation in Basaltic ƒO2: Influence of a Subduction Component in the Cascadia Subduction Zone. Journal of Petrology, 50, 61-91.

ROWE, M.C., THORNBER, C.R. and KENT, A.J.R. (2008) Geochemistry of2004-2005 Mt. St. Helens Ash: Identification and Evolution of theJuvenile Component. In Sherrod, D.R., Scott, W.E., and Stauffer, P.H.,eds., A volcano rekindled; the renewed eruption of Mount St. Helens, 2004-2006: Chapter 29, U.S. Geological Survey Professional Paper 1750.

KENT, A.J.R., ROWE, M.C., PALLISTER, J., THORNBER, C.R. (2008) Traceelement and Pb-isotope compositions of plagioclase from 2004-2005eruption of Mount St. Helens, Washington. In Sherrod, D.R., Scott,W.E., and Stauffer, P.H., eds., A volcano rekindled; the renewed eruption of Mount St. Helens, 2004-2006: Chapter 35, U.S. Geological Survey Professional Paper 1750.

KENT, A.J.R. (2008) Lead isotope homogeneity of NIST 610 and 612glasses: Insights from laser ablation multicollector ICP-MS(LA-MC-ICP-MS) analysis. Geostandards and Geoanalytical Research, 32, 129-147.

KENT, A.J.R. (2008) In-situ analysis of Pb isotope ratios using laserablation MC-ICP-MS: Controls on precision and accuracy and comparisonbetween Faraday cup and ion counting systems. J. Anal. At. Spectrom. 23, 968-975.

CHAMBEFORT, I., DILLES, J.H., and KENT, A.J.R. (2008) Andydrite-bearingAndesite and Dacite as a Source for Sulfur in Magmatic-HydrothermalMineral Deposits. Geology, 36, 719-722.

ROWE, M.C., KENT, A.J.R. and THORNBER, C.R. (2008) Using amphibolephenocrysts to track vapor transfer during magma crystallization andtransport: An example from Mount St. Helens, Washington. Journal of Volcanology and Geothermal Research, 178, 593-607.

KENT, A.J.R. (2008) Melt inclusions in basaltic and associated volcanic rocks. Reviews in mineralogy and Geochemistry, 69, 173-231.

KENT, A.J.R. , BLUNDY, J., CASHMAN, K. COOPER, K., DONNELLY, C.,PALLISTER, J.S., REAGAN, M., ROWE, M.C. & THORNBER, C.R. (2007) Vaportransport prior to the October 2004 eruption of Mount St. Helens,Washington: Insight from Li and 210 Pb systematics. Geology, 35, 231-234.

ROWE, M.C. , KENT , A.J.R. and NIELSEN, R.L. (2007) Determination ofSulfur Speciation and Oxidation State in Olivine Hosted MeltInclusions. Chemical Geology, 236, 303-322.

RUSK, B. G., REED, M.H., DILLES, J.H. and KENT , A.J.R . (2006)Intensity of quartz cathodoluminescence and trace element content inquartz from the porphyry copper deposit in Butte , Montana. AmericanMineralogist , 91, 1300-1312.

KENT, A.J.R. and UNGERER , C.A. (2006) Analysis of light lithophileelements (Li, Be, B) by laser ablation ICP-MS: Comparison betweenmagnetic sector and quadrupole ICP-MS. American Mineralogist, 91,1401-1411.

KOHUT, E.J., STERN, R.J. , KENT , A.J.R., NIELSEN, R.L., BLOOMER,S.H., & LEYBOURNE, M. (2006) The Origins of High-Mg Lavas in theMariana Arc: Evidence from Olivine-Hosted Melt Inclusions.Contributions to Mineralogy and Petrology, 152, 201-221 .

ROWE, M.C., NIELSEN, R.L. and KENT , A.J.R. (2006) Artificially high Fecontents in rehomogenized olivine hosted melt inclusions from oxidizedmagmas. American Mineralogist, 91, 82-91.

KENT, A.J.R. and C.A. Ungerer (2005). Production of Barium and LightRare Earth Element Oxides during LA-ICP-MS microanalysis. J. Anal. At.Spectrom. 20, 1256-1262 .

KENT A.J.R ., STOLPER, E.M., FRANCIS, D., WOODHEAD, J., FREI, R. &EILER, J. (2004) Mantle heterogeneity during the formation of the NorthAtlantic Tertiary Province : Constraints from trace element andSr-Nd-Os-O isotope systematics of Baffin Island picrites. Geochem.Geophys. Geosyst., 5, Q11004, doi: 10.1029/2004GC000743.