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Abiotic Input of Fi...
Abiotic Input of Fixed Nitrogen by Bolide Impacts to Gale Crater During the Hesperian : Insights From the Mars Science Laboratory
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- Navarro‐González, Rafael (författare)
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Mexico City, Mexico
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- Navarro, Karina F. (författare)
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Mexico City, Mexico
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- Coll, Patrice (författare)
- Laboratoire Interuniversitaire des Systèmes Atmosphériques, CNRS UMR 7583, Université Paris‐Est Créteil, Université Paris Diderot, Créteil, France
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- McKay, Christopher P. (författare)
- NASA Ames Research Center, Moffett Field, CA, USA
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- Stern, Jennifer C. (författare)
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Sutter, Brad (författare)
- Jacobs, NASA Johnson Space Center, Houston, TX, USA
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- Archer Jr, P. Douglas (författare)
- Jacobs, NASA Johnson Space Center, Houston, TX, USA
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- Buch, Arnaud (författare)
- Ecole Centrale Paris, Châtenay‐Malabry, France
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- Cabane, Michel (författare)
- Laboratoire Atmosphère, Milieux, Observations Spatiales, UMR CNRS 8190, Université Versailles Saint‐Quentin en Yvelines, UPMC Université Paris 06, Guyancourt, France
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- Conrad, Pamela G (författare)
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Eigenbrode, Jennifer L. (författare)
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Franz, Heather B. (författare)
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Freissinet, Caroline (författare)
- Laboratoire Atmosphère, Milieux, Observations Spatiales, UMR CNRS 8190, Université Versailles Saint‐Quentin en Yvelines, UPMC Université Paris 06, Guyancourt, France
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- Glavin, Daniel P. (författare)
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Hogancamp, Joanna V. (författare)
- Jacobs, NASA Johnson Space Center, Houston, TX, USA
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- McAdam, Amy C. (författare)
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Malespin, Charles A. (författare)
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Martin-Torres, Javier (författare)
- Luleå tekniska universitet,Rymdteknik,Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Granada, Spain
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- Ming, Douglas W. (författare)
- NASA Johnson Space Center, Houston, TX, USA
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- Morris, Richard V. (författare)
- NASA Johnson Space Center, Houston, TX, USA
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- Prats, Benny (författare)
- NASA/eINFORMe, Inc., Goddard Space Flight Center, Planetary Environments Laboratory, Greenbelt, MD, USA
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- Raulin, François (författare)
- Laboratoire Interuniversitaire des Systèmes Atmosphériques, CNRS UMR 7583, Université Paris‐Est Créteil, Université Paris Diderot, Créteil, France
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- Rodríguez‐Manfredi, José Antonio (författare)
- Centro de Astrobiología (INTA-CSIC), Madrid, Spain
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- Szopa, Cyril (författare)
- Laboratoire Atmosphère, Milieux, Observations Spatiales, UMR CNRS 8190, Université Versailles Saint‐Quentin en Yvelines, UPMC Université Paris 06, Guyancourt, France
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- Zorzano Mier, María-Paz (författare)
- Luleå tekniska universitet,Rymdteknik,Centro de Astrobiología (INTA-CSIC), Madrid, Spain
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- Mahaffy, Paul R. (författare)
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Atreya, Sushil (författare)
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Trainer, Melissa G. (författare)
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Vasavada, Ashwin R. (författare)
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
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(creator_code:org_t)
- John Wiley & Sons, 2019
- 2019
- Engelska.
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Ingår i: Journal of Geophysical Research - Planets. - : John Wiley & Sons. - 2169-9097 .- 2169-9100. ; 124:1, s. 94-113
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Molecular hydrogen (H2) from volcanic emissions is suggested to warm the Martian surface when carbon dioxide (CO2) levels dropped from the Noachian (4100 to 3700 Myr) to the Hesperian (3700 to 3000 Myr). Its presence is expected to shift the conversion of molecular nitrogen (N2) into different forms of fixed nitrogen (N). Here we present experimental data and theoretical calculations that investigate the efficiency of nitrogen fixation by bolide impacts in CO2‐N2 atmospheres with or without H2. Surprisingly, nitric oxide (NO) was produced more efficiently in 20% H2 in spite of being a reducing agent and not likely to increase the rate of nitrogen oxidation. Nevertheless, its presence led to a faster cooling of the shock wave raising the freeze‐out temperature of NO resulting in an enhanced yield. We estimate that the nitrogen fixation rate by bolide impacts varied from 7 × 10−4 to 2 × 10−3 g N·Myr−1·cm−2 and could imply fluvial concentration to explain the nitrogen (1.4 ± 0.7 g N·Myr−1·cm−2) detected as nitrite (NO2−) and nitrate (NO3−) by Curiosity at Yellowknife Bay. One possible explanation is that the nitrogen detected in the lacustrine sediments at Gale was deposited entirely on the crater's surface and was subsequently dissolved and transported by superficial and ground waters to the lake during favorable wet climatic conditions. The nitrogen content sharply decreases in younger sediments of the Murray formation suggesting a decline of H2 in the atmosphere and the rise of oxidizing conditions causing a shortage in the supply to putative microbial life.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)
Nyckelord
- Mars
- nitrogen fixation
- nitrates
- bolide impacts
- Gale crater
- Curiosity
- Atmospheric science
- Atmosfärsvetenskap
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Navarro‐González ...
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Navarro, Karina ...
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Coll, Patrice
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McKay, Christoph ...
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Stern, Jennifer ...
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Sutter, Brad
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visa fler...
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Archer Jr, P. Do ...
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Buch, Arnaud
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Cabane, Michel
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Conrad, Pamela G
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Eigenbrode, Jenn ...
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Franz, Heather B ...
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Freissinet, Caro ...
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Glavin, Daniel P ...
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Hogancamp, Joann ...
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McAdam, Amy C.
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Malespin, Charle ...
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Martin-Torres, J ...
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Ming, Douglas W.
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Morris, Richard ...
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Prats, Benny
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Raulin, François
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Rodríguez‐Manfre ...
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Szopa, Cyril
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Zorzano Mier, Ma ...
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Mahaffy, Paul R.
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Atreya, Sushil
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Trainer, Melissa ...
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Vasavada, Ashwin ...
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