American Journal of Science

Journal: American Journal of Science

Abbreviation

Am. J. Sci.

Publisher

Kline Geology Laboratory, Yale University

ISSN

1945-452X
0002-9599

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Publications 1 - 9 of 9

Mineral solubility and hydrous melting relations in the deep earth
Hack, Alistair C.; Hermann, Jörg; Mavrogenes, John A. (2007)
American Journal of Science
A case of Ampferer-type subduction and consequences for the Alps and the Pyrenees
McCarthy, Anders; Tugend, Julie; Mohn, Geoffroy; et al. (2020)
American Journal of Science
Arc crust formation and differentiation constrained by experimental petrology
Müntener, Othmar; Ulmer, Peter (2018)
American Journal of Science
On the geological and scientific legacy of petrogenic organic carbon
Blattmann, Thomas M.; Letsch, Dominik; Eglinton, Timothy I. (2018)
American Journal of Science
Controls on trace metal authigenic enrichment in reducing sediments: Insights from modern oxygen-deficient settings
Little, Susan H.; Vance, Derek; Lyons, Timothy W.; et al. (2015)
American Journal of Science
Fluid-rock interaction during formation of metamorphic quartz veins
Wagner, Thomas; Boyce, Adrian J.; Erzinger, Jörg (2010)
American Journal of Science
Redox constraints on a Cenozoic imbalance in the organic carbon cycle
Galvez, Matthieu E. (2020)
American Journal of Science
Over geological timescales, variations in atmospheric O2 are typically attributed to the imbalance between the weathering of organic carbon (OC) and reduced sulfur on land, the major sink terms for atmospheric O2, and the burial of OC and reduced sulfur in marine sediments, the major source terms of O2 to the atmosphere. But the Fe cycle matters too. Using a compilation of C, Fe, S and H fluxes between the Earth's exosphere, continents, and mantle reservoirs, I demonstrate that hydrothermal weathering of the oceanic lithosphere and volcanic degassing of SO2 have acted as net sinks of O2, amounting to ca. 2.7 ± 1.1 Tmol O2/y, over the Cenozoic. Near constancy of atmospheric oxygen concentrations over the same interval of time suggests that this igneous sink is compensated by the sedimentary cycles of C, S and Fe. The net subduction and accretion of OC likely made the dominant contribution and, therefore, operated as a net source of atmospheric O2 over the last 50-60 Myr. This result implies that redox steady-state in the Cenozoic is dynamically maintained by a net input of solar (photosynthetic) energy, ∼ 0.8 to 2 EJ/y, into the lithospheric cycles of C, S and Fe.
Arc magmatism witnessed by detrital zircon U-Pb geochronology, Hf isotopes and provenance analysis of Late Cretaceous-Miocene sandstones of onshore western Makran (SE Iran)
Mohammadi, Ali; Burg, Jean-Pierre; Guillong, Marcel; et al. (2017)
American Journal of Science
The exhumation history of the European alps inferred from linear inversion of thermochronometric data
Fox, Matthew; Herman, Frédéric; Willett, Sean D.; et al. (2016)
American Journal of Science

Publications 1 - 9 of 9

Journal: American Journal of Science

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