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meta: url: https://www.usgs.gov/staff-profiles/cameron-m-mercer timestamp: '2024-01-30T12:42:03.606508' status_code: 200 profile: name: Cameron M. Mercer, Ph.D. name_qualifier: null titles: - Research Geologist organizations: - !!python/tuple - Geology, Geophysics, and Geochemistry Science Center - https://www.usgs.gov/centers/gggsc email: cmmercer@usgs.gov orcid: 0000-0003-0534-848X intro_statements: - Cameron Mercer is a Mendenhall postdoctoral fellow working in the Denver Argon Geochronology Laboratory at the Geology, Geophysics, and Geochemistry Science Center. expertise_terms: - Geology - 40Ar/39Ar Geochronology - Software (Java, Python, C/C++) professional_experience: - 2020-present, Research Geologist/Mendenhall Postdoctoral Fellow, U.S. Geological Survey - 2019-2020, Postdoctoral Fellow, CRESST II/Catholic University of America (CUA)/NASA Goddard Space Flight Center (GSFC) Code 698 - 2017-2019, Postdoctoral Research Associate, School of Earth and Space Exploration, Arizona State University education: - Ph.D. Geology, School of Earth and Space Exploration, Arizona State University, 2017 - B.A. Geology and Physics, Middlebury College, 2011 affiliations: [] honors: - 2016, Stephen E. Dwornik Planetary Geoscience Student Paper Award (best graduate poster, 47th Lunar and Planetary Science Conference) - 2012, Eugene M. Shoemaker Impact Cratering Award - 2011, Charles G. Doll Award (best undergraduate presentation, Vermont Geological Society Spring Meeting) - 2010, Stephen E. Dwornik Planetary Geoscience Student Paper Award (best undergraduate poster, 41th Lunar and Planetary Science Conference) abstracts: - 'Mercer, C. M., A. Andersen, D. A. Olinger, P. L. Verplanck, M. A. Cosca, L. E. Morgan, 2022. Timing of Silicate and Carbonatite Magmatism Forming the Bear Lodge Alkaline Complex: New Insights from 40Ar/39Ar Geochronology. GSA Connects, 94-10. Geological Society of America Abstracts with Programs. Vol 54, No. 5, 2022 doi: 10.1130/abs/2022AM-381942.' - Mercer, C. M., L. E. Morgan, M. A. Cosca, A. H. Hofstra, R. A. Ayuso, N. K. Foley, 2022. 40Ar/39Ar geochronology of volcanic rocks associated with Be mineralization in the Spor Mountain Formation, Utah, USA. Goldschmidt, 8hP4. - 'Mercer, C. M., K. V. Hodges, B. L. Jolliff, M. C. van Soest, C. S. McDonald, 2019. Reviewing the Geochronologic Constraints from Samples of Boulders at Apollo 17 Stations 2, 6, and 7: Implications for Understanding the Stratigraphy of the North and South Massiffs in the Valley of Taurus-Littrow. Lunar and Planetary Science Conference L, Abs. #3049.' - 'Mercer, C. M., K. V. Hodges, B. L. Jolliff, M. C. van Soest, J.-A. Wartho, K. E. Young, and J. R. Weirich, 2018. Taking a Close Look at Dating Old Impact Melt Rocks: High Spatial Resolution 40Ar/39Ar Geochronology of Some Apollo 17 Samples. Lunar and Planetary Science Conference XLIX, Abs. #2528.' - 'Schmitt, H. H., N. E. Petro, M. S. Robinson, R. A. Wells, C. M. Mercer, and B. P. Weiss, 2018. Apollo 17 Exploration of Taurus-Littrow: Summary of Major Findings. Lunar and Planetary Science Conference XLIX, Abs. #2961.' - 'Mercer, C. M., and K. V. Hodges, 2017. Modeling the Diffusive Loss of Argon in Response to Melt Vein Formation in Polygenetic Impact Melt Breccias. Lunar and Planetary Science Conference XLVIII, Abs. #2224.' - "Mercer, C. M., and K. V. Hodges, 2016. ArAR \u2014 Software to Account for\ \ Discrepancies Between K/Ar and 40Ar/39Ar Datasets Published with Different\ \ Decay, Isotopic, and Monitor-Age Parameters. Geological Society of America\ \ Annual Meeting, Abs. #238-7." - 'Mercer, C. M., K. V. Hodges, and M. C. van Soest, 2016. Exploring Non-Uniform 40Ar* Loss in Apollo 16 Impact Melt Breccias Using a Laser Microprobe. Lunar and Planetary Science Conference XLVII, Abs. #2503.' - 'Mercer, C. M., K. V. Hodges, M. C. van Soest, and C. S. McDonald, 2016. Exploring the Partial Loss of 40Ar* and Potential Recoil Effects in Two Apollo 16 Impact Melt Breccias: Comparison of Laser Microprobe and Incremental Heating 40Ar/39Ar Results. Geological Society of America Annual Meeting, Abs. #259-10.' - "Mercer, C. M., K. V. Hodges, 2016. ArAR\u2014A Software Tool to Promote the\ \ Robust Comparison of K-Ar and 40Ar/39Ar Dates Published with Different Decay,\ \ Isotopic, and Monitor-Age Parameters. Lunar and Planetary Science Conference\ \ XLVII, Abs. #2302." - Mercer, C. M., K. V. Hodges, B. L. Jolliff, M. C. van Soest, J.-A. Wartho, and J. R. Weirich, 2015. High Spatial Resolution 40Ar/39Ar Geochronology of Impact Melt Breccias from Apollo 17 Boulders at Stations 2, 6, and 7. American Geophysical Union Fall Meeting, Poster P33C-2136. - 'Schmitt, H. H., N. E. Petro, M. S. Robinson, R. Wells, B. Weiss, and C. M. Mercer, 2015. Lunar Field Geological Interpretations Assisted by LROC, Mini-RF and M3: Taurus-Littrow. American Geophysical Union Fall Meeting, P43F-08.' - 'Mercer, C. M., K. V. Hodges, B. L. Jolliff, M. C. van Soest, J.-A.Wartho, and J. R.Weirich, 2015. Spatially Resolved, Correlated Variations in Apparent 40Ar/39Ar Ages and Ca/K Ratios in Apollo 17 Impact Melt Breccia 77135. The First 1 Ga of Impact Records: Evidence from Lunar Samples and Meteorites, 78th Annual Meeting of the Meteoritical Society, Abs. #6018.' - 'Mercer, C. M., A. K. Souders, S. J. Romaniello, C. D. Williams, G. A. Brennecka, M. Wadhwa, 2015. Chromium and Titanium Isotope Systematics of Allende CAIs. Lunar and Planetary Science Conference XLVI, Abs. #2920.' - Mercer, C. M., and K. V. Hodges, 2014. Modeling Argon Isotopic Behavior in Polygenetic Impact Melt Breccias. American Geophysical Union Fall Meeting, Poster V41A-4770. - Mercer, C. M., K. E. Young, J. R. Weirich, K. V. Hodges, B. L. Jolliff, J.-A. Wartho, and M. C. van Soest, 2014. Over 500 million years of lunar impact history quantified by laser microprobe 40Ar/39Ar dating of two Apollo 17 breccias. Lunar and Small Bodies Graduate Conference, NASA Ames Research Center, Mountain View, CA. - 'Mercer, C. N., M. H. Reed, and C. M. Mercer, 2014. Timescales of Porphyry Cu Deposit Formation: Insights from Titanium Diffusion in Quartz. Goldschmidt, 12e.' - 'Mercer, C. M., K. E. Young, J. R. Weirich, K. V. Hodges, B. L. Jolliff, J.-A. Wartho, and M. C. van Soest, 2014. Diverse Impact Histories of Apollo 17 Melt Breccias Revealed by In Situ 40Ar/39Ar Geochronology. Lunar and Planetary Science Conference XLV, Abs. #2669.' - 'Mercer, C. M., D. A. Williams, J. E. Scully, D. T. Blewett, D. L. Buczkowski, R. Jaumann, P. M. Schenk, R. A. Yingst, W. B. Garry, T. Roatsch, F. Preusker, C. M. Pieters, C. T. Russell, C. A. Raymond, M. C. De Sanctis, and the Dawn Science Team, 2012. Geologic Mapping of the AV-5 Floronia Quadrangle of Asteroid 4 Vesta. Lunar and Planetary Science Conference XLIII, Abs. #1716.' - 'Mercer, C. M., 2011. Petrogenesis of Two New Eucrites from Northwest Africa: Evidence From Petrography, Mineral Chemistry, and Bulk Chemistry. (Unpublished Senior Thesis, Middlebury College, Middlebury, Vermont.) Vermont Geological Society Spring Meeting.' - 'Mercer, C. M., Jones, J. H., Draper, D. S., Usui, T., and Le, L. H., 2010. Experimental Evolution of Yamato 980459 via Equilibrium Crystallization at 0.5 GPa: Approaching Queen Alexandra Range 94201, Lunar and Planetary Institute 26th Annual Summer Intern Conference, Abs. #1006.' - 'Mercer, C. M. and Cohen, B. A., 2010. Principal Components Analysis of Reflectance Spectra Returned by the Mars Exploration Rover Opportunity. Lunar and Planetary Science Conference XLI, Abs. #1377.' - Mercer, C. M., 2009. Principal Components Analysis of Reflectance Spectra Returned by the Mars Exploration Rover Opportunity. NASA Marshall Space Flight Center Summer Intern Poster Expo. personal_statement: I joined the Denver Argon Geochronology Laboratory at the USGS Geology, Geophysics, and Geochemistry Science Center as a Mendenhall postdoctoral fellow in 2020. I was previously a postdoc in the Mid-Atlantic Noble Gas Research Laboratory at NASA Goddard Space Flight Center. I received my PhD from the School of Earth and Space Exploration at Arizona State University in 2017, and a BA in Geology and Physics from Middlebury College in 2011.My previous research mostly focused on high spatial resolution and incremental heating 40Ar/39Ar geochronology of lunar impact melt rocks. I also performed thermal-kinematic numerical modeling to assess Ar loss due to the formation of melt veins in polymict impact breccias, and I developed a software tool to promote more robust reuse of previously published K-Ar and 40Ar/39Ar datasets. My current research focuses on 40Ar/39Ar geochronology of igneous rocks and alteration minerals associated with a variety of critical mineral deposits in the U.S.