Table of Contents

Articles

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  Carbon isotopes in clastic rocks and the Neoproterozoic carbon cycle

  Donald E. Canfield, Andrew H. Knoll, Simon W. Poulton, Guy M. Narbonne and Gregory R. Dunning

  American Journal of Science February 2020, 320 (2) 97-124; DOI: https://doi.org/10.2475/02.2020.01
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  A combined geochronological and paleomagnetic study on ∼1220 Ma mafic dikes in the North China Craton and the implications for the breakup of Nuna and assembly of Rodinia

  Jikai Ding, Shihong Zhang, Hanqing Zhao, Hanbiao Xian, Haiyan Li, Tianshui Yang, Huaichun Wu and Wei Wang

  American Journal of Science February 2020, 320 (2) 125-149; DOI: https://doi.org/10.2475/02.2020.02
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  The effects of diagenesis on lithium isotope ratios of shallow marine carbonates

  Mathieu Dellinger, Dalton S. Hardisty, Noah J. Planavsky, Benjamin C. Gill, Boriana Kalderon-Asael, Dan Asael, Thomas Croissant, Peter K. Swart and A. Joshua West

  American Journal of Science February 2020, 320 (2) 150-184; DOI: https://doi.org/10.2475/02.2020.03