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Galen P. Halverson
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Journal Article

Calibrating the Russøya excursion in Svalbard, Norway, and implications for Neoproterozoic chronology

Alexie E.G. Millikin, Justin V. Strauss, Galen P. Halverson, Kristin D. Bergmann, Nicholas J. Tosca, Alan D. Rooney
Published: 25 February 2022
Geology (2022) 50 (4): 506–510.
DOI: https://doi.org/10.1130/G49593.1
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Re-Os geochronology highlights widespread latest Mesoproterozoic (ca. 1090–1050 Ma) cratonic basin development on northern Laurentia

J. Wilder Greenman, Alan D. Rooney, Mollie Patzke, Alessandro Ielpi, Galen P. Halverson
Published: 26 March 2021
Geology (2021) 49 (7): 779–783.
DOI: https://doi.org/10.1130/G48521.1
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New multicellular marine macroalgae from the early Tonian of northwestern Canada

Katie M. Maloney, Galen P. Halverson, James D. Schiffbauer, Shuhai Xiao, Timothy M. Gibson, Maxwell A. Lechte, Vivien M. Cumming, Alexie E.G. Millikin, Jack G. Murphy, Malcolm W. Wallace, David Selby, Marc Laflamme
Published: 22 March 2021
Geology (2021) 49 (6): 743–747.
DOI: https://doi.org/10.1130/G48508.1
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Reconstructing Neoproterozoic seawater chemistry from early diagenetic dolomite

Peter W. Crockford, Marcus Kunzmann, Clara L. Blättler, Boriana Kalderon-Asael, Jack G. Murphy, Anne-Sofie Ahm, Shlomit Sharoni, Galen P. Halverson, Noah J. Planavsky, Itay Halevy, John A. Higgins
Published: 10 December 2020
Geology (2021) 49 (4): 442–446.
DOI: https://doi.org/10.1130/G48213.1
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Linking paleocontinents through triple oxygen isotope anomalies

Peter W. Crockford, Malcolm S.W. Hodgskiss, Gabriel J. Uhlein, Fabricio Caxito, Justin A. Hayles, Galen P. Halverson
Published: 12 December 2017
Geology (2018) 46 (2): 179–182.
DOI: https://doi.org/10.1130/G39470.1
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Precise age of Bangiomorpha pubescens dates the origin of eukaryotic photosynthesis

Timothy M. Gibson, Patrick M. Shih, Vivien M. Cumming, Woodward W. Fischer, Peter W. Crockford, Malcolm S.W. Hodgskiss, Sarah Wörndle, Robert A. Creaser, Robert H. Rainbird, Thomas M. Skulski, Galen P. Halverson
Published: 08 December 2017
Geology (2018) 46 (2): 135–138.
DOI: https://doi.org/10.1130/G39829.1
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Introducing the Xenoconformity

Galen P. Halverson
Published: 01 July 2017
Geology (2017) 45 (7): 671–672.
DOI: https://doi.org/10.1130/focus072017.1
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Bacterial sulfur disproportionation constrains timing of Neoproterozoic oxygenation

Marcus Kunzmann, Thi Hao Bui, Peter W. Crockford, Galen P. Halverson, Clint Scott, Timothy W. Lyons, Boswell A. Wing
Published: 01 March 2017
Geology (2017) 45 (3): 207–210.
DOI: https://doi.org/10.1130/G38602.1
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A shale-hosted Cr isotope record of low atmospheric oxygen during the Proterozoic

Devon B. Cole, Christopher T. Reinhard, Xiangli Wang, Bleuenn Gueguen, Galen P. Halverson, Timothy Gibson, Malcolm S.W. Hodgskiss, N. Ryan McKenzie, Timothy W. Lyons, Noah J. Planavsky
Published: 01 July 2016
Geology (2016) 44 (7): 555–558.
DOI: https://doi.org/10.1130/G37787.1
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Marine organic matter cycling during the Ediacaran Shuram excursion

Carina Lee, Gordon D. Love, Woodward W. Fischer, John P. Grotzinger, Galen P. Halverson
Published: 01 December 2015
Geology (2015) 43 (12): 1103–1106.
DOI: https://doi.org/10.1130/G37236.1
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Organic-walled microfossil assemblages from glacial and interglacial Neoproterozoic units of Australia and Svalbard

Leigh Anne Riedman, Susannah M. Porter, Galen P. Halverson, Matthew T. Hurtgen, Christopher K. Junium
Published: 01 November 2014
Geology (2014) 42 (11): 1011–1014.
DOI: https://doi.org/10.1130/G35901.1
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Zn isotope evidence for immediate resumption of primary productivity after snowball Earth

Marcus Kunzmann, Galen P. Halverson, Paolo A. Sossi, Timothy D. Raub, Justin L. Payne, Jason Kirby
Published: 01 January 2013
Geology (2013) 41 (1): 27–30.
DOI: https://doi.org/10.1130/G33422.1
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Neoproterozoic sulfur isotopes, the evolution of microbial sulfur species, and the burial efficiency of sulfide as sedimentary pyrite

Matthew T. Hurtgen, Michael A. Arthur, Galen P. Halverson
Published: 01 January 2005
Geology (2005) 33 (1): 41–44.
DOI: https://doi.org/10.1130/G20923.1
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Are Proterozoic cap carbonates and isotopic excursions a record of gas hydrate destabilization following Earth's coldest intervals?: COMMENT: COMMENT

Paul F. Hoffman, Galen P. Halverson, John P. Grotzinger
Published: 01 March 2002
Geology (2002) 30 (3): 286–287.
DOI: https://doi.org/10.1130/0091-7613(2002)030<0286:APCCAI>2.0.CO;2
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