Lawrence Livermore National Laboratory

Corliss Sio

Postdoctoral Researcher
Nuclear and Chemical Sciences Division

 +1 925-423-7563

PhD Geophysical Sciences
The University of Chicago
BS Geology
University of California, Los Angeles

Research Interests

Corliss Kin I Sio is a geochemist working at the intersection of isotope geochemistry and experimental petrology. She is interested in the formation and evolution of planetary bodies in our solar system. During her PhD at the University of Chicago and postdoctoral fellowship at the Carnegie Institution of Washington, Corliss developed a toolbox of methods to constrain the thermal evolution of volcanoes, by studying isotopic profiles in erupted crystals. Corliss joined the Chemical & Isotopic Signatures group at LLNL in November 2016, and has since worked on dating the formation of the Moon using samples returned from the Apollo missions. She is currently developing techniques to measure the stable Rb isotope compositions of lunar rocks in order to elucidate the origin and budget of volatiles on the Moon. She also works to further the nuclear forensics goals of LLNL, including the development of 3-D printed rocks for use in technical nuclear forensic exercises and to assess their suitability as standard reference materials for in-situ analyses.

Honors and Awards

  • Carnegie Geophysical Lab Postdoctoral Fellowship
  • Lunar and Planetary Institute Career Development Award
  • NASA Earth and Space Science Fellowship
  • AGU Outstanding Student Paper Award
  • Chateaubriand Fellowship
  • Goldschmidt Travel Grant
  • UCLA Clem Nelson Award for Academic Excellence in Geology

Selected Publications

Sio, C. K., Roskosz, M., Dauphas, N., Bennett, N. R., Mock, T., & Shahar, A. 2018. The isotope effect for Mg-Fe interdiffusion in olivine and its dependence on crystal orientation, composition and temperature. Geochimica et Cosmochimica Acta 239, 463-480.

Sio, C.K. and Dauphas, N. 2017. Thermal and crystallization histories of magmatic bodies by Monte Carlo inversion of Mg-Fe isotopic profiles in olivine. Geology, doi: 10.1130/G38056.1

Sio, C.K 2016. Dissecting a volcano. American Mineralogist 101(5), 1023-1024.

Roskosz, M., Sio, C.K, Dauphas, N., Bi, W., Tissot, F., Hu, M.Y., Zhao, J., Alp, E.E. 2015. Spinel-olivine-pyroxene equilibrium iron isotopic fractionation and applications to natural peridotites.

Dauphas, N., Roskosz, M., Alp, E.E., Neuville, D.R., Hu, M.Y., Sio, C.K, Tissot, F.L., Zhao, J., Tissandier, L., Medard, E., Cordier, C., 2014. Magma redox and structural controls on iron isotope variations in Earth's mantle and crust. Earth and Planetary Science Letters, 398, 127-140.

Sio, C.K, Dauphas, N., Teng, F.Z., Chaussidon, M., Helz, R., Roskosz, M. 2013. Discerning crystal growth from diffusion profiles in zoned olivine by in-situ Mg-Fe isotopic analyses, Geochimica et Cosmochimica Acta 123, 302-321.

Wang, K., Moynier, F., Dauphas, N., Barrat, J.A., Craddock, P., Sio, C.K 2012. Iron isotope fractionation in planetary crusts, Geochimica et Cosmochimica Acta 89, 31-45.

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