Thomas M. Johnson

7.4k citations
107 papers · 5.9k · 2 hit papers · h-index 45

Impact in

Papers in

Thomas M. Johnson

100 papers receiving 5.7k citations

Thomas M. Johnson's Hit Papers

Evidence for oxygenic photosynthesis half a billion years before the Great Oxidation Event 2014 · 450 citations
4500+4+8Years since publication100200300400500

Peers

Thomas M. Johnson
Comparison fields: 5 of 113
  • Geochemistry and Petrology 3.0k
  • Paleontology 1.4k
  • Health, Toxicology and Mutagenesis 1.8k
  • Inorganic Chemistry 1.4k
  • Pollution 895
Replace Thomas D. Bullen with:
Thomas D. Bullen United States
Jean Carignan France
C. I. Measures United States
Richard T. Wilkin United States
Laurie S. Balistrieri United States
George R. Helz United States
William M. Landing United States
Derek Vance United Kingdom
Pascale Louvat France
Andrea Koschinsky Germany
Thomas M. Johnson relative to Thomas D. Bullen United States Thomas D. Bullen's profile →
Citations per field
00.5×1.5×1.8×
Thomas D. Bullen · 1×
Citations per year

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-authors

The 25 scholars most cited alongside Thomas M. Johnson, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Thomas M. Johnson Line = papers co-authored together Thomas M. Johnson links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 107 papers — load more, or switch the sort, to bring in the rest.

#Work
1
Low Mid-Proterozoic atmospheric oxygen levels and the delayed rise of animals
Hit paper breakdown →
2014583
2
Evidence for oxygenic photosynthesis half a billion years before the Great Oxidation Event
Hit paper breakdown →
2014450
3 2002406
4 2007251
5 2004135
6 1999128
7 2014122
8 2008109
9 2014104
10 200098
11 200897
12 200297
13 201096
14 201293
15 200992
16 200392
17 200490
18 199489
19 201286
20 200986

About Thomas M. Johnson

Thomas M. Johnson is a scholar working on Geochemistry and Petrology, Health, Toxicology and Mutagenesis, Nutrition and Dietetics, Inorganic Chemistry and Pollution, having authored 107 papers that have together received 5.9k indexed citations. Recurring topics across this work include Selenium in Biological Systems (30 papers), Mercury impact and mitigation studies (28 papers), Radioactive element chemistry and processing (27 papers), Geochemistry and Elemental Analysis (23 papers), Heavy metals in environment (21 papers), Groundwater and Isotope Geochemistry (20 papers), Chromium effects and bioremediation (17 papers) and Groundwater flow and contamination studies (14 papers). The work is most often cited by research in Geochemistry and Petrology (3.0k citations), Paleontology (1.4k citations), Health, Toxicology and Mutagenesis (1.8k citations), Inorganic Chemistry (1.4k citations) and Pollution (895 citations). Thomas M. Johnson has collaborated with scholars based in United States, China and Netherlands. Frequent co-authors include Thomas D. Bullen, Xiangli Wang, A. S. Ellis, Craig M. Bethke, Craig C. Lundstrom, Noah J. Planavsky, Christopher T. Reinhard, Anirban Basu, Timothy W. Lyons and Scott K. Clark. Their work appears in journals such as Geochimica et Cosmochimica Acta, Environmental Science & Technology, Chemical Geology, Geology and Water Resources Research.

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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