American Journal of Science: 321 (8)

October 01, 2021; Volume 321,Issue 8

Preface

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Metal isotopes as markers of biogeochemical processes and fluxes in the eroding Critical Zone
C. Page Chamberlain

American Journal of Science October 2021, 321 (8) iii-iv; DOI: https://doi.org/10.2475/08.2021.05

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Rock weathering and nutrient cycling along an erodosequence
Friedhelm von Blanckenburg, Jan A. Schuessler, Julien Bouchez, Patrick J. Frings, David Uhlig, Marcus Oelze, Daniel A. Frick, Tilak Hewawasam, Jeannie Dixon and Kevin Norton

American Journal of Science October 2021, 321 (8) 1111-1163; DOI: https://doi.org/10.2475/08.2021.01
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Interpreting silicon isotopes in the Critical Zone
Patrick J. Frings, Marcus Oelze, Franziska Schubring, Daniel A. Frick and Friedhelm von Blanckenburg

American Journal of Science October 2021, 321 (8) 1164-1203; DOI: https://doi.org/10.2475/08.2021.02
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Quantifying biotic and abiotic Si fluxes in the Critical Zone with Ge/Si ratios along a gradient of erosion rates
Patrick J. Frings, Franziska Schubring, Marcus Oelze and Friedhelm von Blanckenburg

American Journal of Science October 2021, 321 (8) 1204-1245; DOI: https://doi.org/10.2475/08.2021.03
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The role of vegetation in setting strontium stable isotope ratios in the Critical Zone
Julien Bouchez and Friedhelm von Blanckenburg

American Journal of Science October 2021, 321 (8) 1246-1283; DOI: https://doi.org/10.2475/08.2021.04