World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
62
Citations
15040
World Ranking
8753
National Ranking
2504

Samuel M. Webb publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Samuel M. Webb sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 182 publications — 26th percentile

26% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Samuel M. Webb D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Samuel M. Webb sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 62 D-Index — 52nd percentile

52% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Samuel M. Webb is affiliated with the SLAC National Accelerator Laboratory in the United States. Their research primarily focuses on Earth and Planetary Sciences, with significant contributions in several subfields including Paleontology, Geochemistry and Petrology, Atmospheric Science, Radiation, and Molecular Biology.

Their work spans a variety of main topics such as Geochemistry and Elemental Analysis, Paleontology and Stratigraphy of Fossils, Geology and Paleoclimatology Research, X-ray Spectroscopy and Fluorescence Analysis, Radioactive Element Chemistry and Processing, Isotope Analysis in Ecology, and Cultural Heritage Materials Analysis.

Frequent co-authors in Webb's research include Nicholas P. Edwards, Woodward W. Fischer, M. R. Raven, Maria E. McNamara, and Sharon Bone. Their collaborations have resulted in publications across several scientific venues.

Key publication venues where Webb has contributed include:

  • Geochimica et Cosmochimica Acta
  • Journal of Synchrotron Radiation
  • Goldschmidt2021 abstracts
  • Abstracts with programs - Geological Society of America
  • Science Advances

Recent papers authored or co-authored by Webb include:

  • "Microbial sulfate reduction and organic sulfur formation in sinking marine particles," 2021, Science
  • "Reexamination of 2.5-Ga 'whiff' of oxygen interval points to anoxic ocean before GOE," 2022, Science Advances
  • "Mineralogical transformations in polymetallic nodules and the change of Ni, Cu and Co crystal-chemistry upon burial in sediments," 2020, Geochimica et Cosmochimica Acta
  • "X-ray fluorescence microscopy methods for biological tissues," 2022, Metallomics
  • "Sulfur isotope fractionation between aqueous and carbonate-associated sulfate in abiotic calcite and aragonite," 2020, Geochimica et Cosmochimica Acta

Best Publications

  • Biogenic manganese oxides: Properties and mechanisms of formation

    Bradley M. Tebo;John R. Bargar;Brian G. Clement;Gregory J. Dick

  • SIXpack: A Graphical user interface for XAS analysis using IFEFFIT

    S. M. Webb

  • A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus

    Felisa Wolfe-Simon;Felisa Wolfe-Simon;Jodi Switzer Blum;Thomas R. Kulp;Gwyneth W. Gordon

  • In situ X-ray absorption spectroscopy investigation of a bifunctional manganese oxide catalyst with high activity for electrochemical water oxidation and oxygen reduction.

    Yelena Gorlin;Benedikt Lassalle-Kaiser;Jesse D. Benck;Sheraz Gul

  • Evidence for the presence of Mn(III) intermediates in the bacterial oxidation of Mn(II)

    Samuel M. Webb;Gregory J. Dick;John R. Bargar;Bradley M. Tebo

  • Structural characterization of biogenic Mn oxides produced in seawater by the marine bacillus sp. strain SG-1

    Sam M. Webb;B. M. Tebo;J. R. Bargar

  • Biotic and abiotic products of Mn(II) oxidation by spores of the marine bacillus sp. strain SG-1

    John R. Bargar;Bradley M. Tebo;Uwe Bergmann;Samuel M. Webb

  • Weathering of the Rio Blanco quartz diorite, Luquillo Mountains, Puerto Rico: Coupling oxidation, dissolution, and fracturing

    Heather L. Buss;Peter B. Sak;Samuel M. Webb;Susan L. Brantley

  • Coupled biotic–abiotic Mn(II) oxidation pathway mediates the formation and structural evolution of biogenic Mn oxides

    D.R. Learman;S.D. Wankel;S.M. Webb;N. Martinez

  • Manganese-oxidizing photosynthesis before the rise of cyanobacteria

    Jena E. Johnson;Samuel M. Webb;Katherine Thomas;Shuhei Ono

  • Enhanced exopolymer production and chromium stabilization in Pseudomonas putida unsaturated biofilms.

    John H. Priester;Scott G. Olson;Samuel M. Webb;Mary P. Neu

  • Mn(II) oxidation by an ascomycete fungus is linked to superoxide production during asexual reproduction

    Colleen M. Hansel;Carolyn A. Zeiner;Cara M. Santelli;Samuel M. Webb

  • Site Specific X-ray Anomalous Dispersion of the Geometrically Frustrated Kagomé Magnet, Herbertsmithite, ZnCu3(OH)6Cl2

    Danna E. Freedman;Tianheng H. Han;Andrea Prodi;Peter Müller

  • Uranium biomineralization as a result of bacterial phosphatase activity: insights from bacterial isolates from a contaminated subsurface.

    Melanie J Beazley;Robert J Martinez;Patricia A Sobecky;Samuel M Webb

  • Zinc sorption to biogenic hexagonal-birnessite particles within a hydrated bacterial biofilm

    Brandy Toner;Alain Manceau;Samuel M. Webb;Garrison Sposito

  • Photoreduction of iron oxyhydroxides in the presence of important atmospheric organic compounds

    Simo O. Pehkonen;Ron Siefert;Yigal Erel;Sam Webb

  • Manganese mineralogy and diagenesis in the sedimentary rock record

    Jena E. Johnson;Samuel M. Webb;Chi Ma;Woodward W. Fischer

  • Diversity of Mn oxides produced by Mn(II)-oxidizing fungi

    Cara M. Santelli;Samuel M. Webb;Alice C. Dohnalkova;Colleen M. Hansel

  • XAS speciation of arsenic in a hyper-accumulating fern.

    Samuel M. Webb;Jean-François Gaillard;Lena Q. Ma;Cong Tu

  • Uranium redox transition pathways in acetate-amended sediments

    John R. Bargar;Kenneth H. Williams;Kate M. Campbell;Philip E. Long

  • Effects of Soluble Cadmium Salts Versus CdSe Quantum Dots on the Growth of Planktonic Pseudomonas aeruginosa

    John H. Priester;Peter K. Stoimenov;Randall E. Mielke;Samuel M. Webb

  • Trace Metals as Biomarkers for Eumelanin Pigment in the Fossil Record

    R. A. Wogelius;P. L. Manning;P. L. Manning;H. E. Barden;N. P. Edwards

Frequent Co-Authors

John R. Bargar
John R. Bargar SLAC National Accelerator Laboratory
Woodward W. Fischer
Woodward W. Fischer California Institute of Technology
Bradley M. Tebo
Bradley M. Tebo Oregon Health & Science University
Jean-François Gaillard
Jean-François Gaillard Northwestern University
Uwe Bergmann
Uwe Bergmann SLAC National Accelerator Laboratory
Joseph L. Kirschvink
Joseph L. Kirschvink California Institute of Technology
David A. Fike
David A. Fike Washington University in St. Louis
Shengke Tian
Shengke Tian Zhejiang University
Jess F. Adkins
Jess F. Adkins California Institute of Technology
Martial Taillefert
Martial Taillefert Georgia Institute of Technology

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