World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
82
Citations
21315
World Ranking
472
National Ranking
250

Research.com Recognitions

  • 1991 - IEEE Fellow For contributions to both the theory and application of photoelectrons, image conversion, and electron multiplication.

Overview

Clark M. Johnson is affiliated with the University of Wisconsin-Madison in the United States. Their research primarily focuses on the field of Earth and Planetary Sciences, with substantial contributions across various subfields and specialized topics.

The main fields of study associated with Clark M. Johnson include:

  • Earth and Planetary Sciences

Within this broad field, their work spans several subfields of study, such as:

  • Geochemistry and Petrology
  • Paleontology
  • Atmospheric Science
  • Astronomy and Astrophysics
  • Inorganic Chemistry

The primary research topics covered by their publications consist of:

  • Geochemistry and Elemental Analysis
  • Paleontology and Stratigraphy of Fossils
  • Geology and Paleoclimatology Research
  • Radioactive element chemistry and processing
  • Geological and Geochemical Analysis
  • Clay minerals and soil interactions
  • Astro and Planetary Science

Clark M. Johnson has coauthored multiple papers with frequent collaborators including:

  • Brian L. Beard
  • Xin-Yuan Zheng
  • Stefan Weyer
  • Eric Roden
  • Andrew D. Czaja

They have published in several venues regularly, reflecting their research range and focus. Frequent publication venues include:

  • Earth-Science Reviews
  • Geochimica et Cosmochimica Acta
  • Goldschmidt Abstracts
  • Earth and Planetary Science Letters
  • Scientific Reports

Selected recent research papers by Clark M. Johnson include:

  • "Early Archean biogeochemical iron cycling and nutrient availability: New insights from a 3.5 Ga land-sea transition" (2022) published in Earth-Science Reviews

Other notable papers relevant to their field, coauthored or related, include:

  • "Stable potassium (K) isotope characteristics at mid-ocean ridge hydrothermal vents and its implications for the global K cycle" (2022) in Earth and Planetary Science Letters
  • "Life on a Mesoarchean marine shelf - insights from the world's oldest known granular iron formation" (2020) in Scientific Reports
  • "Natural Potassium (K) Isotope Fractionation during Corn Growth and Quantification of K Fertilizer Recovery Efficiency Using Stable K Isotope Labeling" (2022) in ACS Earth and Space Chemistry
  • "Stable Fe isotope fractionation during dissimilatory Fe(III) reduction by a thermoacidophile in acidic hydrothermal environments" (2020) in Geochimica et Cosmochimica Acta

Among their distinctions, Clark M. Johnson was awarded the IEEE Fellow in 1991 for contributions to the theory and application of photoelectrons, image conversion, and electron multiplication.

Best Publications

  • Application of Fe isotopes to tracing the geochemical and biological cycling of Fe

    Brian L. Beard;Clark M. Johnson;Joseph L. Skulan;Kenneth H. Nealson

  • The Iron Isotope Fingerprints of Redox and Biogeochemical Cycling in Modern and Ancient Earth

    Clark M. Johnson;Brian L. Beard;Eric E. Roden

  • Iron isotope biosignatures.

    Brian L. Beard;Clark M. Johnson;Lea Cox;Henry Sun

  • Iron formations: A global record of Neoarchaean to Palaeoproterozoic environmental history

    Kurt O. Konhauser;Noah J. Planavsky;Noah J. Planavsky;Dalton S. Hardisty;Leslie J. Robbins

  • Strontium Isotope Composition of Skeletal Material Can Determine the Birth Place and Geographic Mobility of Humans and Animals

    Brian L. Beard;Clark M. Johnson

  • Kinetic and equilibrium Fe isotope fractionation between aqueous Fe(II) and Fe(III)

    S.A. Welch;B.L. Beard;C.M. Johnson;P.S. Braterman

  • Iron isotope constraints on Fe cycling and mass balance in oxygenated Earth oceans

    Brian L. Beard;Clark M. Johnson;Karen L. Von Damm;Rebecca L. Poulson

  • Residential Mobility in the Prehistoric Southwest United States: A Preliminary Study using Strontium Isotope Analysis

    T.Douglas Price;Clark M. Johnson;Joseph A. Ezzo;Jonathan Ericson

  • Isotopic fractionation between Fe(III) and Fe(II) in aqueous solutions

    Clark M. Johnson;Joseph L. Skulan;Brian L. Beard;Henry Sun

  • Atom Exchange between Aqueous Fe(II) and Goethite: An Fe Isotope Tracer Study

    Robert M. Handler;Brian L. Beard;Clark M. Johnson;Michelle M. Scherer

  • Iron isotope fractionation by Fe(II)-oxidizing photoautotrophic bacteria

    Laura R. Croal;Clark M. Johnson;Brian L. Beard;Dianne K. Newman

  • Iron isotopes constrain biologic and abiologic processes in banded iron formation genesis

    Clark M. Johnson;Brian L. Beard;Cornelis Klein;Nic J. Beukes

  • Mobility of Bell Beaker people revealed by strontium isotope ratios of tooth and bone: a study of southern Bavarian skeletal remains

    Gisela Grupe;T. Douglas Price;Peter Schröter;Frank Söllner

  • Burial rates during prograde metamorphism of an ultra-high-pressure terrane: an example from Lago di Cignana, western Alps, Italy

    Thomas J. Lapen;Clark M. Johnson;Lukas P. Baumgartner;Nancy J. Mahlen

  • Ancient geochemical cycling in the Earth as inferred from Fe isotope studies of banded iron formations from the Transvaal Craton

    Clark M. Johnson;Brian L. Beard;Nicolas J. Beukes;Cornelis Klein

  • Fe Isotope Variations in the Modern and Ancient Earth and Other Planetary Bodies

    Brian L. Beard;Clark M. Johnson

  • The effect of early diagenesis on the Fe isotope compositions of porewaters and authigenic minerals in continental margin sediments

    Silke Severmann;Clark M. Johnson;Brian L. Beard;James McManus

  • Fe, C, and O isotope compositions of banded iron formation carbonates demonstrate a major role for dissimilatory iron reduction in ~2.5 Ga marine environments

    Adriana Heimann;Adriana Heimann;Adriana Heimann;Clark M. Johnson;Clark M. Johnson;Brian L. Beard;Brian L. Beard;John W. Valley;John W. Valley

  • Geochemistry of non-traditional stable isotopes

    Clark M. Johnson;Braian L. Beard;Francis Albarède

  • The mechanisms of iron isotope fractionation produced during dissimilatory Fe(III) reduction by Shewanella putrefaciens and Geobacter sulfurreducens

    Heidi A. Crosby;Eric E. Roden;Clark M. Johnson;Brian L. Beard

  • Analytical Perspectives on Prehistoric Migration: A Case Study From East-Central Arizona

    Joseph A. Ezzo;Clark M. Johnson;T.Douglas Price

Frequent Co-Authors

Brian L. Beard
Brian L. Beard University of Wisconsin–Madison
Eric E. Roden
Eric E. Roden University of Wisconsin–Madison
Weiqiang Li
Weiqiang Li Nanjing University
Brian R. Jicha
Brian R. Jicha University of Wisconsin–Madison
John W. Valley
John W. Valley University of Wisconsin–Madison
Brad S. Singer
Brad S. Singer University of Wisconsin–Madison
Nicolas J. Beukes
Nicolas J. Beukes University of Johannesburg
Alan R. Carroll
Alan R. Carroll University of Wisconsin–Madison
Lukas P. Baumgartner
Lukas P. Baumgartner University of Lausanne
Michelle M. Scherer
Michelle M. Scherer University of Iowa

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