Amy Jo Williams

No photo available

Amy Jo Williams

  • RESEARCH ASSOCIATE
  • 301.286.6379
  • NASA/GSFC
  • Mail Code: 699
  • Greenbelt , MD 20771
  • Employer: UNIV OF MARYLAND COLLEGE PARK
  • Brief Bio

    Dr. Williams is a postdoctoral researcher in the Planetary Environments Laboratory at NASA Goddard Space Flight Center, with research interests in astrobiology and the preservation and detection of biosignatures. Her publications include the identification of microscale filamentous biosignatures forming macroscale structures in ancient and modern iron-dominated environments. She is currently exploring the preservation of chemical biosignatures such as lipids in modern and ancient biogenic iron oxides.

    Dr. Williams is a science team member on the Sample Analysis at Mars (SAM) instrument onboard the Mars Curiosity Rover. She is working to prepare one of the wet chemistry experiments on board the instrument for use on Mars.

    Education

    Ph.D., Earth & Planetary Sciences. University of California, Davis. Davis, California. September 2014.
    Dissertation: Microbial Biosignature Preservation at Iron Mountain, California. Advisor: Dr. Dawn Y. Sumner

    M.S., Earth & Planetary Sciences. University of New Mexico. Albuquerque, New Mexico. August 2009.
    Thesis: An Aqueous Geochemical and Hydrologic Study of the Springs and Wells of the Sevilleta National Wildlife Refuge: Evaluating Hydrochemical Pathways. Advisor: Dr. Laura J. Crossey

    B.S., Earth & Environmental Science. Furman University. Greenville, South Carolina. June 2007.
    Senior Honors Thesis: Evaluating the Effects of Sample Processing Treatments on Alkalinity Measurements. Advisor: Dr. C. Brannon Andersen

    Publications

    Refereed

    Anderson, R., J. C. Bridges, A. J. Williams, et al. L. Edgar, A. Ollila, J. Williams, M. Nachon, N. Mangold, J. Schieber, S. Gupta, G. Dromart, R. Wiens, S. Le Mouelic, O. Forni, N. Lanza, A. Mezzacappa, V. Sautter, M. Fisk, D. Blaney, B. Clark, S. Clegg, O. Gasnault, J. Lasue, R. Leveille, E. Lewin, K. Lewis, S. Maurice, H. Newsom, S. Schwenzer, and D. Vaniman. 2015. "ChemCam Results from the Shaler Outcrop in Gale Crater, Mars." Icarus, 249: 2-21 [10.1016/j.icarus.2014.07.025]

    Williams, A. J., L. J. Crossey, K. E. Karlstrom, et al. D. Newell, M. Person, and E. Woosley. 2013. "Hydrogeochemistry of the Middle Rio Grande aquifer system - fluid mixing and salinization of the Rio Grande due to fault inputs." Chemical Geology, 351: 281-298 [10.1016/j.chemgeo.2013.05.029]

    Williams, A. J., C. B. Andersen, and G. P. Lewis. 2009. "Evaluating the Effects of Sample Processing Treatments on Alkalinity Measurements." Journal of Hydrology, 377: 455-464.

    Brief Bio

    Dr. Williams is a postdoctoral researcher in the Planetary Environments Laboratory at NASA Goddard Space Flight Center, with research interests in astrobiology and the preservation and detection of biosignatures. Her publications include the identification of microscale filamentous biosignatures forming macroscale structures in ancient and modern iron-dominated environments. She is currently exploring the preservation of chemical biosignatures such as lipids in modern and ancient biogenic iron oxides.

    Dr. Williams is a science team member on the Sample Analysis at Mars (SAM) instrument onboard the Mars Curiosity Rover. She is working to prepare one of the wet chemistry experiments on board the instrument for use on Mars.

    Publications

    Refereed

    Anderson, R., J. C. Bridges, A. J. Williams, et al. L. Edgar, A. Ollila, J. Williams, M. Nachon, N. Mangold, J. Schieber, S. Gupta, G. Dromart, R. Wiens, S. Le Mouelic, O. Forni, N. Lanza, A. Mezzacappa, V. Sautter, M. Fisk, D. Blaney, B. Clark, S. Clegg, O. Gasnault, J. Lasue, R. Leveille, E. Lewin, K. Lewis, S. Maurice, H. Newsom, S. Schwenzer, and D. Vaniman. 2015. "ChemCam Results from the Shaler Outcrop in Gale Crater, Mars." Icarus 249 2-21 [10.1016/j.icarus.2014.07.025]

    Williams, A. J., L. J. Crossey, K. E. Karlstrom, et al. D. Newell, M. Person, and E. Woosley. 2013. "Hydrogeochemistry of the Middle Rio Grande aquifer system - fluid mixing and salinization of the Rio Grande due to fault inputs." Chemical Geology 351 281-298 [10.1016/j.chemgeo.2013.05.029]

    Williams, A. J., C. B. Andersen, and G. P. Lewis. 2009. "Evaluating the Effects of Sample Processing Treatments on Alkalinity Measurements." Journal of Hydrology 377 455-464

                                                                                                                                                                                            
    NASA Logo, National Aeronautics and Space Administration