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Constraints on surface temperature 3.4 billion years ago based on triple oxygen isotopes of cherts from the Barberton Greenstone Belt, South Africa, and the problem of sample selection
Donald R. Lowe, Daniel E. Ibarra, Nadja Drabon and C. Page Chamberlain

American Journal of Science November 2020, 320 (9) 790-814; DOI: https://doi.org/10.2475/11.2020.02
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Determining the origin of inclusions in garnet: Challenges and new diagnostic criteria
Thomas A. Griffiths, Gerlinde Habler and Rainer Abart

American Journal of Science November 2020, 320 (9) 753-789; DOI: https://doi.org/10.2475/11.2020.01
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Zircon U-Pb geochronology and Nd-Pb isotope geochemistry of Blue Ridge basement in the eastern Great Smoky Mountains, U.S.A.: Implications for the Proterozoic tectonic evolution of the southeastern Laurentian margin
D.P. Moecher, F.C. Harris, E.A. Larkin, R.J. Quinn, K.B. Walsh, D.F. Loughry, E.D. Anderson, S.D. Samson, A.M. Satkoski and E. Tohver

American Journal of Science October 2020, 320 (8) 677-729; DOI: https://doi.org/10.2475/10.2020.02
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Redox constraints on a Cenozoic imbalance in the organic carbon cycle
Matthieu E. Galvez

American Journal of Science October 2020, 320 (8) 730-751; DOI: https://doi.org/10.2475/10.2020.03
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Miocene to Pleistocene glacial history of West Antarctica inferred from Nunatak geomorphology and cosmogenic-nuclide measurements on bedrock surfaces
Perry Spector, John Stone, Greg Balco, Trevor Hillebrand, Mika Thompson and Taryn Black

American Journal of Science October 2020, 320 (8) 637-676; DOI: https://doi.org/10.2475/10.2020.01
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A process-based ecosystem model (Paleo-BGC) to simulate the dynamic response of Late Carboniferous plants to elevated O₂ and aridification
Joseph D. White, Isabel P. Montañez, Jonathan P. Wilson, Christopher J. Poulsen, Jennifer C. McElwain, William A. DiMichele, Michael T. Hren, Sophia Macarewich, Jon D. Richey and William J. Matthaeus

American Journal of Science September 2020, 320 (7) 547-598; DOI: https://doi.org/10.2475/09.2020.01
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Simulating meteoric and mixing zone carbonate diagenesis with a two-dimensional reactive transport model
Mingyu Zhao, Noah Planavsky, Amanda M. Oehlert, Guangyi Wei and Zheng Gong

American Journal of Science September 2020, 320 (7) 599-636; DOI: https://doi.org/10.2475/09.2020.02
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Reconsidering the uplift history and peneplanation of the northern Lhasa terrane, Tibet
Miquela Ingalls, David B. Rowley, Brian S. Currie and Albert S. Colman

American Journal of Science June 2020, 320 (6) 479-532; DOI: https://doi.org/10.2475/06.2020.01
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The promise of optical NMR spectroscopy for experimental aqueous geochemistry
William H. Casey, Zhipan Wang, Nicholas Brandt and Nicholas Curro

American Journal of Science June 2020, 320 (6) 533-545; DOI: https://doi.org/10.2475/06.2020.02
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Tectonics and foreland basin development at the leading edge of the Humber Arm Allochthon, western Newfoundland, Canadian Appalachians
Ryan A. Lacombe, John W. F. Waldron and S. Henry Williams

American Journal of Science May 2020, 320 (5) 450-477; DOI: https://doi.org/10.2475/05.2020.02

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