| Low Mid-Proterozoic atmospheric oxygen levels and the delayed rise of animals NJ Planavsky, CT Reinhard, X Wang, D Thomson, P McGoldrick, ... science 346 (6209), 635-638, 2014 | 668 | 2014 |
| Evidence for oxygenic photosynthesis half a billion years before the Great Oxidation Event NJ Planavsky, D Asael, A Hofmann, CT Reinhard, SV Lalonde, ... Nature Geoscience 7 (4), 283-286, 2014 | 539 | 2014 |
| Chromium isotopes and the fate of hexavalent chromium in the environment AS Ellis, TM Johnson, TD Bullen Science 295 (5562), 2060-2062, 2002 | 530 | 2002 |
| Groundwater age and groundwater age dating CM Bethke, TM Johnson Annu. Rev. Earth Planet. Sci. 36, 121-152, 2008 | 349 | 2008 |
| Selenium isotope ratios as indicators of selenium sources and oxyanion reduction TM Johnson, MJ Herbel, TD Bullen, PT Zawislanski Geochimica et Cosmochimica Acta 63 (18), 2775-2783, 1999 | 182 | 1999 |
| Using chromium stable isotope ratios to quantify Cr (VI) reduction: lack of sorption effects AS Ellis, TM Johnson, TD Bullen Environmental Science & Technology 38 (13), 3604-3607, 2004 | 171 | 2004 |
| Mass-dependent fractionation of selenium and chromium isotopes in low-temperature environments TM Johnson, TD Bullen Reviews in mineralogy and geochemistry 55 (1), 289-317, 2004 | 151 | 2004 |
| Uranium isotopic fractionation factors during U (VI) reduction by bacterial isolates A Basu, RA Sanford, TM Johnson, CC Lundstrom, FE Löffler Geochimica et Cosmochimica Acta 136, 100-113, 2014 | 144 | 2014 |
| Interpretation of isotopic data in groundwater‐rock systems: Model development and application to Sr isotope data from Yucca Mountain TM Johnson, DJ DePaolo Water Resources Research 30 (5), 1571-1587, 1994 | 136 | 1994 |
| Uranium 238U/235U Isotope Ratios as Indicators of Reduction: Results from an in situ Biostimulation Experiment at Rifle, Colorado, U.S.A. CJ Bopp IV, CC Lundstrom, TM Johnson, RA Sanford, PE Long, ... Environmental science & technology 44 (15), 5927-5933, 2010 | 132 | 2010 |
| Microbial mass-dependent fractionation of chromium isotopes ER Sikora, TM Johnson, TD Bullen Geochimica et Cosmochimica Acta 72 (15), 3631-3641, 2008 | 132 | 2008 |
| A review of mass-dependent fractionation of selenium isotopes and implications for other heavy stable isotopes TM Johnson Chemical Geology 204 (3-4), 201-214, 2004 | 130 | 2004 |
| Selenium isotope fractionation during reduction by Fe (II)-Fe (III) hydroxide-sulfate (green rust) TM Johnson, TD Bullen Geochimica et Cosmochimica Acta 67 (3), 413-419, 2003 | 126 | 2003 |
| Variations in 238U/235U in uranium ore deposits: Isotopic signatures of the U reduction process? CJ Bopp IV, CC Lundstrom, TM Johnson, JJG Glessner Geology 37 (7), 611-614, 2009 | 123 | 2009 |
| 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 |
| Fractionation of selenium isotopes during bacterial respiratory reduction of selenium oxyanions MJ Herbel, TM Johnson, RS Oremland, TD Bullen Geochimica et Cosmochimica Acta 64 (21), 3701-3709, 2000 | 116 | 2000 |
| Cr stable isotopes as indicators of Cr (VI) reduction in groundwater: a detailed time-series study of a point-source plume EC Berna, TM Johnson, RS Makdisi, A Basu Environmental science & technology 44 (3), 1043-1048, 2010 | 110 | 2010 |
| The isotopic composition of authigenic chromium in anoxic marine sediments: A case study from the Cariaco Basin CT Reinhard, NJ Planavsky, X Wang, WW Fischer, TM Johnson, ... Earth and Planetary Science Letters 407, 9-18, 2014 | 108 | 2014 |
| Stable isotope fractionation of selenium by natural microbial consortia AS Ellis, TM Johnson, MJ Herbel, TD Bullen Chemical Geology 195 (1-4), 119-129, 2003 | 106 | 2003 |
| Paradox of groundwater age CM Bethke, TM Johnson Geology 30 (2), 107-110, 2002 | 105 | 2002 |
