Geological Sulfur Isotopes Indicate Elevated OCS in the Archean Atmosphere, Solving the Faint Young Sun Paradox

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Geological Sulfur Isotopes Indicate Elevated OCS in the Archean Atmosphere, Solving the Faint Young Sun Paradox. / Ueno, Yuichiro; Johnson, Matthew Stanley; Danielache, Sebastian Oscar; Eskebjerg, Carsten; Pandey, Antra; Yoshida, Naohiro.

I: Proceedings of the National Academy of Science of the United States of America, Bind 106, Nr. 35, 14.07.2009, s. 14784 - 14789.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Ueno, Y, Johnson, MS, Danielache, SO, Eskebjerg, C, Pandey, A & Yoshida, N 2009, 'Geological Sulfur Isotopes Indicate Elevated OCS in the Archean Atmosphere, Solving the Faint Young Sun Paradox', Proceedings of the National Academy of Science of the United States of America, bind 106, nr. 35, s. 14784 - 14789.

APA

Ueno, Y., Johnson, M. S., Danielache, S. O., Eskebjerg, C., Pandey, A., & Yoshida, N. (2009). Geological Sulfur Isotopes Indicate Elevated OCS in the Archean Atmosphere, Solving the Faint Young Sun Paradox. Proceedings of the National Academy of Science of the United States of America, 106(35), 14784 - 14789.

Vancouver

Ueno Y, Johnson MS, Danielache SO, Eskebjerg C, Pandey A, Yoshida N. Geological Sulfur Isotopes Indicate Elevated OCS in the Archean Atmosphere, Solving the Faint Young Sun Paradox. Proceedings of the National Academy of Science of the United States of America. 2009 jul. 14;106(35):14784 - 14789.

Author

Ueno, Yuichiro ; Johnson, Matthew Stanley ; Danielache, Sebastian Oscar ; Eskebjerg, Carsten ; Pandey, Antra ; Yoshida, Naohiro. / Geological Sulfur Isotopes Indicate Elevated OCS in the Archean Atmosphere, Solving the Faint Young Sun Paradox. I: Proceedings of the National Academy of Science of the United States of America. 2009 ; Bind 106, Nr. 35. s. 14784 - 14789.

Bibtex

@article{51fd379005d011df825d000ea68e967b,
title = "Geological Sulfur Isotopes Indicate Elevated OCS in the Archean Atmosphere, Solving the Faint Young Sun Paradox",
abstract = "Distributions of sulfur isotopes in geological samples would providea record of atmospheric composition if the mechanism producingthe isotope effects could be described quantitatively. Wedetermined the UV absorption spectra of 32SO2, 33SO2, and 34SO2and use them to interpret the geological record. The calculatedisotopic fractionation factors for SO2 photolysis give mass independentdistributions that are highly sensitive to the atmosphericconcentrations of O2, O3, CO2, H2O, CS2, NH3, N2O, H2S, OCS, andSO2 itself. Various UV-shielding scenarios are considered and weconclude that the negative 33S observed in the Archean sulfatedeposits can only be explained by OCS shielding. Of relevantArchean gases, OCS has the unique ability to prevent SO2 photolysisby sunlight at >202 nm. Scenarios run using a photochemicalbox model show that ppm levels of OCS will accumulate in aCO-rich, reducing Archean atmosphere. The radiative forcing, dueto this level of OCS, is able to resolve the faint young sun paradox.Further, the decline of atmospheric OCS may have caused the lateArchean glaciation.",
author = "Yuichiro Ueno and Johnson, {Matthew Stanley} and Danielache, {Sebastian Oscar} and Carsten Eskebjerg and Antra Pandey and Naohiro Yoshida",
note = "Paper id:: www.pnas.org/cgi/doi/10.1073/pnas.0903518106",
year = "2009",
month = jul,
day = "14",
language = "English",
volume = "106",
pages = "14784 -- 14789",
journal = "Proceedings of the National Academy of Sciences of the United States of America",
issn = "0027-8424",
publisher = "The National Academy of Sciences of the United States of America",
number = "35",

}

RIS

TY - JOUR

T1 - Geological Sulfur Isotopes Indicate Elevated OCS in the Archean Atmosphere, Solving the Faint Young Sun Paradox

AU - Ueno, Yuichiro

AU - Johnson, Matthew Stanley

AU - Danielache, Sebastian Oscar

AU - Eskebjerg, Carsten

AU - Pandey, Antra

AU - Yoshida, Naohiro

N1 - Paper id:: www.pnas.org/cgi/doi/10.1073/pnas.0903518106

PY - 2009/7/14

Y1 - 2009/7/14

N2 - Distributions of sulfur isotopes in geological samples would providea record of atmospheric composition if the mechanism producingthe isotope effects could be described quantitatively. Wedetermined the UV absorption spectra of 32SO2, 33SO2, and 34SO2and use them to interpret the geological record. The calculatedisotopic fractionation factors for SO2 photolysis give mass independentdistributions that are highly sensitive to the atmosphericconcentrations of O2, O3, CO2, H2O, CS2, NH3, N2O, H2S, OCS, andSO2 itself. Various UV-shielding scenarios are considered and weconclude that the negative 33S observed in the Archean sulfatedeposits can only be explained by OCS shielding. Of relevantArchean gases, OCS has the unique ability to prevent SO2 photolysisby sunlight at >202 nm. Scenarios run using a photochemicalbox model show that ppm levels of OCS will accumulate in aCO-rich, reducing Archean atmosphere. The radiative forcing, dueto this level of OCS, is able to resolve the faint young sun paradox.Further, the decline of atmospheric OCS may have caused the lateArchean glaciation.

AB - Distributions of sulfur isotopes in geological samples would providea record of atmospheric composition if the mechanism producingthe isotope effects could be described quantitatively. Wedetermined the UV absorption spectra of 32SO2, 33SO2, and 34SO2and use them to interpret the geological record. The calculatedisotopic fractionation factors for SO2 photolysis give mass independentdistributions that are highly sensitive to the atmosphericconcentrations of O2, O3, CO2, H2O, CS2, NH3, N2O, H2S, OCS, andSO2 itself. Various UV-shielding scenarios are considered and weconclude that the negative 33S observed in the Archean sulfatedeposits can only be explained by OCS shielding. Of relevantArchean gases, OCS has the unique ability to prevent SO2 photolysisby sunlight at >202 nm. Scenarios run using a photochemicalbox model show that ppm levels of OCS will accumulate in aCO-rich, reducing Archean atmosphere. The radiative forcing, dueto this level of OCS, is able to resolve the faint young sun paradox.Further, the decline of atmospheric OCS may have caused the lateArchean glaciation.

M3 - Journal article

VL - 106

SP - 14784

EP - 14789

JO - Proceedings of the National Academy of Sciences of the United States of America

JF - Proceedings of the National Academy of Sciences of the United States of America

SN - 0027-8424

IS - 35

ER -

ID: 17112163