Justin I. Simon
Postdoctoral researcher
483
McCone Hall
University of California and
Lawrence Berkeley National Lab
Berkeley, CA 94720-4767
T • (01)
510/642-9524
F • (01) 510/642-9520
Email •
My web page at the Berkeley Geochronology Center
Publications
CV pdf
Teaching Statement pdf
Isotope Seminar Series
Current Research Projects:
What do Ca isotopes tell us about the formation of rocky planets? abstract
Are Supracanonical 26Al/27Al initial values real? abstract
Are magma residence times related to mantle magma supply? abstract
Do Wark-Lovering rims represent the earliest evidence of planet formation?
Common and less common activities!
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How old is our solar system? When and how did the rocky planets form? How long does it take to build a “supervolcano”? I develop and utilize petrologic, isotopic, and geochronological tools to answer these questions.
Education
Research Interests
Investigations of non-traditional isotope systems to study mass-dependent fractionation processes in terrestrial and extraterrestrial systems; Short-lived radionuclides to understand early solar system chronology and terrestrial planet formation; Radioisotopic studies to understand why volcanoes exhibit a range of time scales for magmatic processes; Research to improve methods for high-precision geochronology; Micro-analytical isotope studies.
Publications
10. Simon, J. I., DePaolo, D. J., and F. Moynier (in press). Calcium Isotope Composition of Meteorites, Earth, and Mars, ApJ
9. Simon, J. I., Vazquez, J. A., Renne, P. R., Schmitt, A. K., Bacon, C. R., and M. R. Reid, 2009. Accessory mineral U-Th-Pb ages and 40Ar/39Ar eruption chronology, and their bearing on rhyolite magma evolution in the Pleistocene Coso volcanic field, California, CMP pdf
8. Simon, J. I., Renne, P.R., and R. Mundil, 2008. Implications of pre-eruptive magmatic histories of zircons for U-Pb geochronology of silicic extrusions, EPSL. Vol. 266, 182-194 pdf
7. Simon, J. I., Reid, M. R., and E. D. Young, 2007. Lead isotopes by LA-MC-ICPMS: tracking the emergence of mantle signatures in an evolving silicic magma system, GCA. Vol. 71, 2014-2035 pdf
6. Simon, J. I. Young, E. D., Russell, S. S., Tonui, E. K., Dyl, K., and C. E. Manning, 2005. A short timescale for changing oxygen fugacity in the solar nebula revealed by high-resolution 26Al-26Mg dating of CAIs, EPSL. Vol. 238, 272-283 pdf
5. Young, E. D., Simon, J. I., Galy, A., Tonui, E., Russell, S. S., and O. Lovera, 2005. Supracanonical 26Al/27Al and the Residence Time of CAIs in the Solar Protoplanetary Disk, Science. Vol. 308, 223-227, 10.1126/science.1108140 pdf
4. Simon, J. I. and M. R. Reid, 2005. The pace of rhyolite differentiation and storage in an ‘archetypical’ silicic magma system, Long Valley, California, EPSL. Vol. 235, 123-140 pdf
3. Kavner, A., F. Bonet, A. Shahar, J. Simon, and E. Young, 2005. Electrochemical Separation of the Stable Isotopes of Iron, GCA. Vol. 69, No. 12 2971-2979 pdf
2. Schmitt, A. K. and J. I. Simon, 2004. Boron isotopic variations in hydrous rhyolitic melts: a case study from Long Valley, California, CMP. Vol. 146, 590-605 pdf
1. Wendlandt, R. F., Harrison, W. J., Simon, J. I., Chastain, E. A., and J. Jecha-Ernstberger, 1998. Integrated experimental and numerical assessment of acid buffer capacity evolution in soils, Proceedings of Tailings and Mine Waste 1998, January 26-29, Balkema, pp. 689-700. |
