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Chemistry

D-Index
50
Citations
10183
World Ranking
14290
National Ranking
3688

Environmental Sciences

D-Index
49
Citations
10229
World Ranking
5189
National Ranking
1908

Research.com Recognitions

  • 2018 - Geochemistry Fellow Honor, Geochemical Society and the European Association of Geochemistry

Overview

George R. Helz is affiliated with the University of Maryland, College Park in the United States. Their research primarily falls within Earth and Planetary Sciences and Chemistry, with a particular focus on inorganic chemistry and geochemistry-related fields.

The scientist's work spans several subfields, including:

  • Inorganic Chemistry
  • Geochemistry and Petrology
  • Paleontology
  • Pollution
  • Artificial Intelligence

Key topics addressed in their publications are:

  • Radioactive element chemistry and processing
  • Geochemistry and Elemental Analysis
  • Paleontology and Stratigraphy of Fossils
  • Heavy metals in environment
  • Geochemistry and Geologic Mapping
  • Hydrocarbon exploration and reservoir analysis

Helz has contributed to several notable papers, including:

  • The Re/Mo redox proxy reconsidered, 2021, Geochimica et Cosmochimica Acta
  • Dissolved molybdenum asymptotes in sulfidic waters, 2021, Geochemical Perspectives Letters
  • Deposition of Mo, Re and U under contrasting redox conditions; assessment of the [Re/Mo]sw redox proxy, 2023, Geochimica et Cosmochimica Acta
  • Interpreting Re/Mo Ratios in Sedimentary Rocks, 2020, Goldschmidt Abstracts

Frequent co-authors collaborating with Helz include Igor Živković, Elvira Bura-Nakić, and Lucija Knežević.

The scientist has published repeatedly in venues such as:

  • Geochimica et Cosmochimica Acta
  • Geochemical Perspectives Letters
  • Goldschmidt Abstracts

Helz was recognized as a Geochemistry Fellow by the Geochemical Society and the European Association of Geochemistry in 2018.

Best Publications

  • Mechanism of molybdenum removal from the sea and its concentration in black shales: EXAFS evidence

    G.R. Helz;C.V. Miller;J.M. Charnock;J.M. Charnock;J.F.W. Mosselmans

  • Molybdenum(VI) speciation in sulfidic waters; stability and lability of thiomolybdates

    Britt E. Erickson;George R. Helz

  • Aquatic and Surface Photochemistry

    G. R. Helz;Richard G. Zepp;Donald G. Crosby

  • New model for molybdenum behavior in euxinic waters

    George R. Helz;Elvira Bura-Nakić;Nevenka Mikac;Irena Ciglenečki

  • Regional geochemistry of trace elements in Chesapeake Bay sediments

    S. A. Sinex;G. R. Helz

  • Reconstructing the rise of recent coastal anoxia; molybdenum in Chesapeake Bay sediments

    J.M. Adelson;G.R. Helz;C.V. Miller;C.V. Miller

  • Capture of molybdenum in pyrite-forming sediments: role of ligand-induced reduction by polysulfides

    Trent P. Vorlicek;Mani D. Kahn;Yasuhiro Kasuya;George R. Helz

  • The structure of amorphous copper sulfide precipitates: An X-ray absorption study

    R.A.D. Pattrick;J.F.W. Mosselmans;J.M. Charnock;K.E.R. England

  • Differential adsorption of molybdate and tetrathiomolybdate on pyrite (FeS2).

    Benjamin N. C. Bostick;Scott Fendorf;George R. Helz

  • Indirect photoreduction of aqueous chromium(Vi)

    Robert J. Kieber;George R. Helz

  • Solubility of ozone in aqueous solutions of 0-0.6 M ionic strength at 5-30.degree.C.

    Lynn F. Kosak-Channing;George R. Helz

  • Inorganic Speciation of Mercury in Sulfidic Waters: The Importance of Zero-Valent Sulfur

    Kristina E. Paquette;George R. Helz

  • Oligomerization in As (III) sulfide solutions: Theoretical constraints and spectroscopic evidence

    George R. Helz;John A. Tossell;John M. Charnock;Richard A.D. Pattrick

  • Thermodynamic model for arsenic speciation in sulfidic waters: A novel use of ab initio computations

    G.R. Helz;J.A. Tossell

  • Catalysis by mineral surfaces. Implications for Mo geochemistry in anoxic environments

    Trent P. Vorlicek;George R. Helz

  • Two-method verification of hydrogen peroxide determinations in natural waters

    Robert J. Kieber;G. R. Helz

  • Behavior of Mn, Fe, Cu, Zn, Cd and Pb discharged from a wastewater treatment plant into an estuarine environment

    G.R. Helz;R.J. Huggett;J.M. Hill

  • The solubility of copper in sulfidic waters: Sulfide and polysulfide complexes in equilibrium with covellite

    Damian Shea;George R Helz

  • Hydrogen peroxide effects on chromium oxidation state and solubility in four diverse, chromium-enriched soils.

    Melanie L. Rock;Bruce R. James;George R. Helz

  • Volatile chloro- and bromocarbons in coastal waters1

    George R. Helz;Rong Y. Hsu

  • Aquatic chemistry—An introduction emphasizing chemical equilibria in natural waters: By Werner Stumm and James J. Morgan. Second Edition, John Wiley and Sons, 1981, 780 pp. $45.00 (cloth), $27.50 (paper)

    George R. Helz

Frequent Co-Authors

John M. Charnock
John M. Charnock University of Manchester
David J. Vaughan
David J. Vaughan University of Manchester
Richard A. D. Pattrick
Richard A. D. Pattrick University of Manchester
Richard J. Walker
Richard J. Walker University of Maryland, College Park
James Farquhar
James Farquhar University of Maryland, College Park
Karen H. Johannesson
Karen H. Johannesson University of Massachusetts Boston
William F. McDonough
William F. McDonough University of Maryland, College Park
Robert J. Kieber
Robert J. Kieber University of North Carolina Wilmington
John A. Tossell
John A. Tossell University of Maryland, College Park
David Elmore
David Elmore Purdue University West Lafayette

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