Table of Contents

Article

• You have access

  The role of the solid earth in regulating atmospheric O₂ levels

  Daniel A. Stolper, John A. Higgins and Louis A. Derry

  American Journal of Science December 2021, 321 (10) 1381-1444; DOI: https://doi.org/10.2475/10.2021.01
• You have access

  The kabr El-Bonaya peridotites, Southeastern Sinai, Egypt: petrology, geochemistry, and metamorphism of Neoproterozoic arc ultramafic cumulates

  Ayman E. Maurice, Mokhles K. Azer, Paul D. Asimow, Fawzy F. Basta, Hassan M. Helmy and Tomoyuki Shibata

  American Journal of Science December 2021, 321 (10) 1445-1496; DOI: https://doi.org/10.2475/10.2021.02