Thomas M. Johnson

7.3k total citations · 2 hit papers
106 papers, 5.8k citations indexed

About

Thomas M. Johnson is a scholar working on Geochemistry and Petrology, Health, Toxicology and Mutagenesis and Nutrition and Dietetics. According to data from OpenAlex, Thomas M. Johnson has authored 106 papers receiving a total of 5.8k indexed citations (citations by other indexed papers that have themselves been cited), including 49 papers in Geochemistry and Petrology, 45 papers in Health, Toxicology and Mutagenesis and 30 papers in Nutrition and Dietetics. Recurrent topics in Thomas M. Johnson's work include Selenium in Biological Systems (30 papers), Mercury impact and mitigation studies (28 papers) and Radioactive element chemistry and processing (26 papers). Thomas M. Johnson is often cited by papers focused on Selenium in Biological Systems (30 papers), Mercury impact and mitigation studies (28 papers) and Radioactive element chemistry and processing (26 papers). Thomas M. Johnson collaborates with scholars based in United States, China and Netherlands. Thomas M. Johnson's co-authors include Thomas D. Bullen, A. S. Ellis, Xiangli Wang, Craig M. Bethke, Craig C. Lundstrom, Noah J. Planavsky, Christopher T. Reinhard, Anirban Basu, Timothy W. Lyons and Scott K. Clark and has published in prestigious journals such as Science, SHILAP Revista de lepidopterología and Environmental Science & Technology.

In The Last Decade

Thomas M. Johnson

98 papers receiving 5.6k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Low Mid-Proterozoic atmospheric oxygen levels and the delayed rise of animals

2014 575 citations Noah J. Planavsky, Christopher T. Reinhard et al. Science profile →
Evidence for oxygenic photosynthesis half a billion years before the Great Oxidation Event

2014 437 citations Noah J. Planavsky, Christopher T. Reinhard et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Thomas M. Johnson United States	44	3.0k	1.8k	1.4k	1.3k	890	106	5.8k
Thomas D. Bullen United States	50	3.8k 1.3×	1.1k 0.6×	799 0.6×	920 0.7×	767 0.9×	97	8.6k
Jean Carignan France	44	1.8k 0.6×	1.4k 0.8×	431 0.3×	758 0.6×	1.6k 1.8×	81	5.7k
Richard T. Wilkin United States	39	1.5k 0.5×	1.5k 0.9×	612 0.4×	1.3k 1.0×	1.3k 1.5×	85	8.0k
Laurie S. Balistrieri United States	37	1.8k 0.6×	985 0.6×	718 0.5×	291 0.2×	1.8k 2.0×	65	4.9k
C. I. Measures United States	57	2.8k 0.9×	1.1k 0.6×	251 0.2×	801 0.6×	1.3k 1.4×	137	9.2k
Dominik Weiß United Kingdom	48	1.7k 0.6×	1.3k 0.8×	501 0.4×	377 0.3×	2.5k 2.8×	145	6.3k
James W. Moffett United States	47	1.5k 0.5×	1.4k 0.8×	414 0.3×	496 0.4×	1.5k 1.7×	102	6.6k
Karen H. Johannesson United States	48	4.4k 1.5×	899 0.5×	1.2k 0.9×	558 0.4×	1.7k 1.9×	145	6.6k
Andrea Koschinsky Germany	40	4.6k 1.6×	540 0.3×	1.1k 0.8×	2.0k 1.5×	809 0.9×	142	7.6k
George R. Helz United States	42	2.5k 0.9×	1.3k 0.8×	1.3k 0.9×	1.7k 1.3×	1.5k 1.6×	126	6.8k

Countries citing papers authored by Thomas M. Johnson

Since Specialization

Citations

This map shows the geographic impact of Thomas M. Johnson's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Thomas M. Johnson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Thomas M. Johnson more than expected).

Fields of papers citing papers by Thomas M. Johnson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Thomas M. Johnson. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Thomas M. Johnson. The network helps show where Thomas M. Johnson may publish in the future.

Co-authorship network of co-authors of Thomas M. Johnson

This figure shows the co-authorship network connecting the top 25 collaborators of Thomas M. Johnson. A scholar is included among the top collaborators of Thomas M. Johnson based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Thomas M. Johnson. Thomas M. Johnson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Hendry, M. Jim, et al.. (2024). Application of selenium isotopes to define selenium bioreduction in coal waste rock: Elk Valley, British Columbia. The Science of The Total Environment. 957. 177838–177838.

Smith, Joshua M., et al.. (2023). Comparison of powdered enamel sample pretreatment methods for strontium isotope analysis. SHILAP Revista de lepidopterología. 4. 1 indexed citations

Wang, Yuwei, et al.. (2021). Rapid Attainment of Isotopic Equilibrium after Mercury Reduction by Ferrous Iron Minerals and Isotopic Exchange between Hg(II) and Hg(0). ACS Earth and Space Chemistry. 5(6). 1384–1394. 9 indexed citations

Vengosh, Avner, Rachel Coyte, Joel Podgorski, & Thomas M. Johnson. (2021). A critical review on the occurrence and distribution of the uranium- and thorium-decay nuclides and their effect on the quality of groundwater. The Science of The Total Environment. 808. 151914–151914. 69 indexed citations

Zhu, Jian‐Ming, et al.. (2020). Selenium isotope fractionation during adsorption by Fe, Mn and Al oxides. Geochimica et Cosmochimica Acta. 272. 121–136. 42 indexed citations

Johnson, Thomas M., et al.. (2019). Influence of physical and chemical hydrology on bioremediation of a U-contaminated aquifer informed by reactive transport modeling incorporating 238U/235U ratios. Geochimica et Cosmochimica Acta. 269. 303–328. 13 indexed citations

Shiel, Alyssa E., et al.. (2018). Field Application of ²³⁸U/²³⁵U Measurements To Detect Reoxidation and Mobilization of U(IV). Environmental Science & Technology. 52(6). 3422–3430. 17 indexed citations

Wang, Xiangli, Noah J. Planavsky, Christopher T. Reinhard, James R. Hein, & Thomas M. Johnson. (2016). A Cenozoic seawater redox record derived from 238U/235U in ferromanganese crusts. American Journal of Science. 316(1). 64–83. 68 indexed citations

Planavsky, Noah J., Christopher T. Reinhard, Xiangli Wang, et al.. (2014). Low Mid-Proterozoic atmospheric oxygen levels and the delayed rise of animals. Science. 346(6209). 635–638. 575 indexed citations breakdown →

10.

Johnson, Thomas M., et al.. (2014). Uranium Isotopic Fractionation Induced by U(VI) Adsorption Onto Common Aquifer Minerals. AGU Fall Meeting Abstracts. 2014. 1 indexed citations

11.

Xie, Xianjun, Thomas M. Johnson, Yanxin Wang, et al.. (2012). Mobilization of arsenic in aquifers from the Datong Basin, China: Evidence from geochemical and iron isotopic data. Chemosphere. 90(6). 1878–1884. 43 indexed citations

12.

Deonarine, Amrika, et al.. (2012). Environmental Impacts of the Tennessee Valley Authority Kingston Coal Ash Spill. 1. Source Apportionment Using Mercury Stable Isotopes. Environmental Science & Technology. 47(4). 2092–2099. 62 indexed citations

13.

Ellis, A. S., et al.. (2010). Stable Isotope Fractionation during Chromium(III) Oxidation by δ-MnO2. AGUFM. 2010. 4 indexed citations

14.

Mead, Chris & Thomas M. Johnson. (2010). Hg stable isotope analysis by the double-spike method. Analytical and Bioanalytical Chemistry. 397(4). 1529–1538. 16 indexed citations

15.

Ellis, A. S., et al.. (2008). Chromium Contamination in Leon Valley Mexico: Insights from Chromium Stable Isotopes. AGU Fall Meeting Abstracts. 2008. 2 indexed citations

16.

Johnson, Thomas M., et al.. (2005). Cr isotopes as indicators of Cr(VI) reduction and contaminant sources. Geochimica et Cosmochimica Acta Supplement. 69(10). 1 indexed citations

17.

Johnson, Thomas M., et al.. (2004). Chromium Stable Isotope Fractionation During Abiotic Reduction of Hexavalent Chromium. AGUFM. 2004. 4 indexed citations

18.

Bethke, Craig M. & Thomas M. Johnson. (2002). Ground Water Age. Ground Water. 40(4). 337–339. 34 indexed citations

19.

Ellis, A. S., Thomas M. Johnson, & T. D. Bullen. (2001). Chromium Stable Isotope Fractionation - An Indicator of Hexavalent Chromium Reduction.. AGUFM. 2001.

20.

Cartwright, Keros, Robert H. Gilkeson, & Thomas M. Johnson. (1981). Geological considerations in hazardouswaste disposal. Journal of Hydrology. 54(1-3). 357–369. 4 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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