Background

• Staff Scientist, LLNL, 2010-present
• Postdoctoral Research Scientist, LLNL, 2007-2010
• Postdoctoral Fellow, Berkeley Geochronology Center, The University of California, Berkeley, 2004-2007
• Research/Teaching Assistant, Massachusetts Institute of Technology, 1999-2004
• Geology Intern, Texaco, New Orleans, LA, 1998
• Research/Teaching Assistant, The University of Texas at Austin, 1995-1998
• Geologist, USGS Water Resources Division, Altamonte Springs, FL, 1995
• Teaching Assistant, Saint Norbert College, DePere, WI, 1992-1995

Research Interests

Matzel’s research interests are focused on developing tools to detect and characterize nuclear proliferation activities using mass spectrometry and microanalysis of materials obtained through environmental sampling. These technologies support US monitoring capabilities for nonproliferation and arms control treaties and agreements. She applies similar techniques to develop a better understanding of the physical and chemical processes that shaped the origin of our solar system, from condensation of the first solid materials to the evolution of planetary bodies. She conducts this research primarily by measuring the chemical and isotopic compositions of primitive meteorites and cosmic dust using secondary ion mass spectrometry (NanoSIMS and conventional ion probe).

Ph.D., Geochemistry, Massachusetts Institute of Technology, 2004

M.S., Geochemistry, The University of Texas at Austin, 1999

B.S., Geology, Saint Norbert College, 1995

1. Weisz, D.G., Jacobsen, B., Marks, N.E., Knight, K.B., Isselhardt, B.H. and Matzel, J., 2018, Diffusive mass transport in agglomerated glassy fallout from a near-surface nuclear test, Geochimica et Cosmochimica Acta 223, 377–388.
2. Weisz, D.G., Jacobsen, B., Marks, N.E., Knight, K.B., Isselhardt, B.H., Matzel, J., Weber, P.K., Prussin, S.G., and Hutcheon, I.D., 2017, Deposition of vaporized species onto glassy fallout from a near-surface nuclear test, Geochimica et Cosmochimica Acta, 201, 410–426.
3. Simon, J.I., Matzel, J., Simon, S.B., Hutcheon, I.D., Ross, D.K., Weber, P.K., and Grossman, L., 2016, Oxygen Isotopic Variations in the Outer Margins and Wark-Lovering Rims of Refractory Inclusions, Geochemica Cosmochimica Acta 186, 242–276.
4. Lewis, L.A., Knight, K.B., Matzel, J., Prussin, S.G., Zimmer, M.M., Kinman, W.S., Ryerson, F.J., and Hutcheon, I.D., 2015, Spatially-resolved analyses of aerodynamic fallout from a uranium-fueled nuclear test, Journal of Environmental Radioactivity, 148, 183–195.
5. Jacobsen, B., Matzel, J., Hutcheon, I.D., Krot, A.N., Yin, Q.-Z., Nagashima, K., Ramon, E.C., Weber, P.K., Ishii, H.A., and Ciesla, F.J., 2011, Formation of the Short-lived Radionuclide 36Cl in the Protoplanetary Disk During Late-stage Irradiation of a Volatile-rich Reservoir, The Astrophysical Journal, 731, L28.
6. Simon, J.I., Hutcheon, I.D., Simon, S.B., Matzel, J., Ramon, E.C., Weber, P.K., Grossman, L., and DePaolo, D.J., 2011, Oxygen Isotope Variations at the Margin of a CAI Records Circulation Within the Solar Nebula, Science, 331, 1175–1178.
7. Matzel, J., Ishii, H.A., Joswiak, D., Hutcheon, I.D., Bradley, J.P., Brownlee, D., Weber, P.K., Teslich, N., Matrajt, G., McKeegan, K.D., and MacPherson, G.J., 2010, Constraints on the Formation Age of Cometary Material from the NASA Stardust Mission, Science, doi:10.1126/science.1184741.
8. Miller, J. S., Matzel, J., Miller, C. F., Burgess, S. D., and Miller, R. B., 2007, Zircon growth and recycling during the assembly of large, composite arc plutons, Journal of Volcanology and Geothermal Research 167, 282–299, doi:10.1016/j.jvolgeores.2007.04.019.
9. Jourdan, F., Matzel, J., and Renne, P. R., 2007, 39Ar and 37Ar recoil loss during neutron irradiation of sanidine and plagioclase, Geochimica et Cosmochimica Acta 71, 2791–2808, doi:10.1016/j.gca.2007.03.017.
10. Matzel, J., Bowring, S. A., and Miller, R. B., 2006, Timescales of pluton construction at differing crustal levels: Examples from the Mount Stuart batholith and Tenpeak pluton, North Cascades, Washington, GSA Bulletin, doi: 10.1130/B25923.
11. Matzel, J., Bowring, S. A., and Miller, R. B., 2008, Spatial and temporal variations in Nd isotopic signatures across the crystalline core of the North Cascades, Washington, in Wright, J.E. and Shervais, J.W., eds., Ophiolites, Arcs, and Batholiths: GSA Special Paper 438, doi:10.1130/2008.2438(18).

• Excellence in Publication, LLNL, 2011
• Excellence in Publication, LLNL, 2010
• Best Poster Presentation (Chemical Sciences Division) at the Postdoc Poster Symposium, 2009
• Teaching Assistant Excellence Award, Massachusetts Institute of Technology, 2001
• Honorable Mention for Best Technical Presentation, Univ. of Texas Geological Sciences Dept., 1998
• Academic Geologist Award, Saint Norbert College, 1993-1994
• Pritzl Science Scholar, Saint Norbert College, 1992-1995
• Trustees Distinguished Scholar, Saint Norbert College, 1991-1995