| Effective isotopic fractionation factors for solute removal by reactive sediments: A laboratory microcosm and slurry study SK Clark, TM Johnson Environmental science & technology 42 (21), 7850-7855, 2008 | 119 | 2008 |
| Selenium redox cycling during weathering of Se-rich shales: A selenium isotope study JM Zhu, TM Johnson, SK Clark, XK Zhu, XL Wang Geochimica et Cosmochimica Acta 126, 228-249, 2014 | 82 | 2014 |
| High precision measurement of selenium isotopic composition by hydride generation multiple collector inductively coupled plasma mass spectrometry with a 74Se-77Se double spike ZHU Jian-Ming, TM Johnson, SK Clark, ZHU Xiang-Kun Chinese Journal of Analytical Chemistry 36 (10), 1385-1390, 2008 | 63 | 2008 |
| Alternative conceptions of plate tectonics held by nonscience undergraduates SK Clark, JC Libarkin, KM Kortz, SC Jordan Journal of Geoscience Education 59 (4), 251-262, 2011 | 53 | 2011 |
| Selenium stable isotope investigation into selenium biogeochemical cycling in a lacustrine environment: Sweitzer Lake, Colorado SK Clark, TM Johnson Journal of environmental quality 39 (6), 2200-2210, 2010 | 53 | 2010 |
| Educator perspectives on Earth system science literacy: Challenges and priorities ND LaDue, SK Clark Journal of Geoscience Education 60 (4), 372-383, 2012 | 41 | 2012 |
| Trace element and U-series systematics for 1963-1965 tephras from Irazu volcano, Costa Rica: Implications for magma generation processes and transit times SK Clark, MK Reagan, T Plank Geochimica et cosmochimica acta 62 (15), 2689-2699, 1998 | 41 | 1998 |
| Sustainability in the university student's mind: are university endorsements, financial support, and programs making a difference? EK Perrault, SK Clark Journal of Geoscience Education 65 (2), 194-202, 2017 | 33 | 2017 |
| Sustainability attitudes and behavioral motivations of college students: Testing the extended parallel process model EK Perrault, SK Clark International Journal of Sustainability in Higher Education 19 (1), 32-47, 2018 | 28 | 2018 |
| Tephra deposits for the past 2600 years from Irazú volcano, Costa Rica SK Clark, MK Reagan, DA Trimble | 25 | 2006 |
| Designing a mixed-methods research instrument and scoring rubric to investigate individuals’ conceptions of plate tectonics SK Clark, JC Libarkin Geological Society of America Special Papers 474, 81-96, 2011 | 21 | 2011 |
| A novel approach to teaching and understanding transformations of matter in dynamic earth systems SK Clark, DF Sibley, JC Libarkin, M Heidemann Journal of Geoscience Education 57 (4), 233-241, 2009 | 12 | 2009 |
| Counting tectonic plates: A mixed-methods study of college student conceptions of plates and boundaries KM Kortz, SK Clark, K Gray, JJ Smay, B Viveiros, D Steer Qualitative inquiry in geoscience education research: Geological Society of …, 2011 | 10 | 2011 |
| The Recent Eruptive History of Irazú Volcano, Costa Rica: A Study of Tephra Deposits of the Last 2,500 Years with Geochemical and Isotropic Analysis of the 1963-65 Eruption SK Clark University of Iowa, 1993 | 10 | 1993 |
| A shift in scientific literacy: Earthquakes generate tsunamis SK Clark Eos, Transactions American Geophysical Union 91 (36), 316-316, 2010 | 6 | 2010 |
| The emerging field of geocognition H King, S Clark, J Libarkin, A Stokes Geological Society of America National Conference: Houston Texas, Geological …, 2008 | 4 | 2008 |
| Too much, too little, or just right? An investigation of confidence, demographics, and correctness S Jordan, JC Libarkin, SK Clark Geological Society of America Abstracts with Programs 41 (7), 667, 2009 | 3 | 2009 |
| The relationship between students’ confidence and conceptual understanding of plate tectonics J Libarkin, S Clark Abstracts with Programs, Geological Society of America 40 (6), 421-422, 2008 | 3 | 2008 |
| Lost in translation: quantifying the overlap of popular media and non‐majors science course assessment vocabulary JL Momsen, SK Clark, JH Doherty, KC Haudek, JW Schramm, EMG Ward Ecosphere 3 (5), 1-13, 2012 | 2 | 2012 |
| The color of confusion in an expert world JC Libarkin, SK Clark, RB Simmon GSA Annual Meeting, Denver, CO. Geological Society of America Abstracts with …, 2010 | 2 | 2010 |
Thomas M. JohnsonProfessor of GeologyVerified email at illinois.edu
