Early oxidation of the martian crust triggered by impacts

Research output: Contribution to journalJournal articlepeer-review

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Early oxidation of the martian crust triggered by impacts. / Deng, Zhengbin; Moynier, Frederic; Villeneuve, Johan; Jensen, Ninna K.; Liu, Deze; Cartigny, Pierre; Mikouchi, Takashi; Siebert, Julien; Agranier, Arnaud; Chaussidon, Marc; Bizzarro, Martin.

In: Science Advances, Vol. 6, No. 44, 4941, 2020.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Deng, Z, Moynier, F, Villeneuve, J, Jensen, NK, Liu, D, Cartigny, P, Mikouchi, T, Siebert, J, Agranier, A, Chaussidon, M & Bizzarro, M 2020, 'Early oxidation of the martian crust triggered by impacts', Science Advances, vol. 6, no. 44, 4941. https://doi.org/10.1126/sciadv.abc4941

APA

Deng, Z., Moynier, F., Villeneuve, J., Jensen, N. K., Liu, D., Cartigny, P., Mikouchi, T., Siebert, J., Agranier, A., Chaussidon, M., & Bizzarro, M. (2020). Early oxidation of the martian crust triggered by impacts. Science Advances, 6(44), [4941]. https://doi.org/10.1126/sciadv.abc4941

Vancouver

Deng Z, Moynier F, Villeneuve J, Jensen NK, Liu D, Cartigny P et al. Early oxidation of the martian crust triggered by impacts. Science Advances. 2020;6(44). 4941. https://doi.org/10.1126/sciadv.abc4941

Author

Deng, Zhengbin ; Moynier, Frederic ; Villeneuve, Johan ; Jensen, Ninna K. ; Liu, Deze ; Cartigny, Pierre ; Mikouchi, Takashi ; Siebert, Julien ; Agranier, Arnaud ; Chaussidon, Marc ; Bizzarro, Martin. / Early oxidation of the martian crust triggered by impacts. In: Science Advances. 2020 ; Vol. 6, No. 44.

Bibtex

@article{c67798c82471485a8af14e8aad50e62d,
title = "Early oxidation of the martian crust triggered by impacts",
abstract = "Despite the abundant geomorphological evidence for surface liquid water on Mars during the Noachian epoch (>3.7 billion years ago), attaining a warm climate to sustain liquid water on Mars at the period of the faint young Sun is a long-standing question. Here, we show that melts of ancient mafic clasts from a martian regolith meteorite, NWA 7533, experienced substantial Fe-Ti oxide fractionation. This implies early, impact-induced, oxidation events that increased by five to six orders of magnitude the oxygen fugacity of impact melts from remelting of the crust. Oxygen isotopic compositions of sequentially crystallized phases from the clasts show that progressive oxidation was due to interaction with an O-17-rich water reservoir. Such an early oxidation of the crust by impacts in the presence of water may have supplied greenhouse gas H-2 that caused an increase in surface temperature in a CO2-thick atmosphere.",
keywords = "TITANIUM ISOTOPE FRACTIONATION, OXYGEN FUGACITY, GALE CRATER, MARS, MELT, METEORITE, TEMPERATURE, DIVERSITY, CHEMISTRY, HISTORY",
author = "Zhengbin Deng and Frederic Moynier and Johan Villeneuve and Jensen, {Ninna K.} and Deze Liu and Pierre Cartigny and Takashi Mikouchi and Julien Siebert and Arnaud Agranier and Marc Chaussidon and Martin Bizzarro",
year = "2020",
doi = "10.1126/sciadv.abc4941",
language = "English",
volume = "6",
journal = "Science advances",
issn = "2375-2548",
publisher = "American Association for the Advancement of Science",
number = "44",

}

RIS

TY - JOUR

T1 - Early oxidation of the martian crust triggered by impacts

AU - Deng, Zhengbin

AU - Moynier, Frederic

AU - Villeneuve, Johan

AU - Jensen, Ninna K.

AU - Liu, Deze

AU - Cartigny, Pierre

AU - Mikouchi, Takashi

AU - Siebert, Julien

AU - Agranier, Arnaud

AU - Chaussidon, Marc

AU - Bizzarro, Martin

PY - 2020

Y1 - 2020

N2 - Despite the abundant geomorphological evidence for surface liquid water on Mars during the Noachian epoch (>3.7 billion years ago), attaining a warm climate to sustain liquid water on Mars at the period of the faint young Sun is a long-standing question. Here, we show that melts of ancient mafic clasts from a martian regolith meteorite, NWA 7533, experienced substantial Fe-Ti oxide fractionation. This implies early, impact-induced, oxidation events that increased by five to six orders of magnitude the oxygen fugacity of impact melts from remelting of the crust. Oxygen isotopic compositions of sequentially crystallized phases from the clasts show that progressive oxidation was due to interaction with an O-17-rich water reservoir. Such an early oxidation of the crust by impacts in the presence of water may have supplied greenhouse gas H-2 that caused an increase in surface temperature in a CO2-thick atmosphere.

AB - Despite the abundant geomorphological evidence for surface liquid water on Mars during the Noachian epoch (>3.7 billion years ago), attaining a warm climate to sustain liquid water on Mars at the period of the faint young Sun is a long-standing question. Here, we show that melts of ancient mafic clasts from a martian regolith meteorite, NWA 7533, experienced substantial Fe-Ti oxide fractionation. This implies early, impact-induced, oxidation events that increased by five to six orders of magnitude the oxygen fugacity of impact melts from remelting of the crust. Oxygen isotopic compositions of sequentially crystallized phases from the clasts show that progressive oxidation was due to interaction with an O-17-rich water reservoir. Such an early oxidation of the crust by impacts in the presence of water may have supplied greenhouse gas H-2 that caused an increase in surface temperature in a CO2-thick atmosphere.

KW - TITANIUM ISOTOPE FRACTIONATION

KW - OXYGEN FUGACITY

KW - GALE CRATER

KW - MARS

KW - MELT

KW - METEORITE

KW - TEMPERATURE

KW - DIVERSITY

KW - CHEMISTRY

KW - HISTORY

U2 - 10.1126/sciadv.abc4941

DO - 10.1126/sciadv.abc4941

M3 - Journal article

C2 - 33127679

VL - 6

JO - Science advances

JF - Science advances

SN - 2375-2548

IS - 44

M1 - 4941

ER -

ID: 251636833