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Characterizing Hydr...
Characterizing Hydrated Sulfates and Altered Phases in Jezero Crater Fan and Floor Geologic Units With SHERLOC on Mars 2020
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- Phua, Yu Yu (författare)
- California Institute of Technology, United States
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- Ehlmann, Bethany L. (författare)
- California Institute of Technology, United States
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- Siljeström, Sandra (författare)
- RISE,Metodik, textil och medicinteknik
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- Czaja, Andrew D. (författare)
- University of Cincinnati, united States
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- Beck, Pierre (författare)
- Université Grenoble Alpes, France
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- Connell, Stephanie (författare)
- Purdue University, United States
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- Wiens, Roger C. (författare)
- Purdue University, United States
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- Jakubek, Ryan S. (författare)
- NASA Johnson Space Center, United States
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- Williams, Rebecca M. E. (författare)
- Planetary Science Institute, United States
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- Zorzano, Maria-Paz (författare)
- CSIC-INTA, Spain
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- Minitti, Michelle E. (författare)
- Framework, United States
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- Pascuzzo, Alyssa C. (författare)
- Malin Space Science Systems, United States
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- Hand, Kevin P. (författare)
- California Institute of Technology, United States
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- Bhartia, Rohit (författare)
- Photon Systems, United States
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- Kah, Linda C. (författare)
- University of Tennessee, United States
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- Mandon, Lucia (författare)
- California Institute of Technology, United States
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- Razzell Hollis, Joseph (författare)
- Natural History Museum, United Kingdom
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- Scheller, Eva L. (författare)
- MIT, United States
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- Sharma, Sunanda (författare)
- California Institute of Technology, United States
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- Steele, Andrew (författare)
- Carnegie Institution of Washington, United States
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- Uckert, Kyle (författare)
- California Institute of Technology, United States
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- Williford, Kenneth H. (författare)
- Blue Marble Space Institute of Science, United States
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- Yanchilina, Anastasia G. (författare)
- California Institute of Technology, United States
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(creator_code:org_t)
- American Geophysical Union (AGU), 2024
- 2024
- Engelska.
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Ingår i: Journal of Geophysical Research - Planets. - : American Geophysical Union (AGU). - 2169-9097 .- 2169-9100. ; 129:7
- Relaterad länk:
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https://doi.org/10.1...
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https://ri.diva-port... (primary) (Raw object)
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The Mars 2020 Perseverance rover has explored fluvio-lacustrine sedimentary rocks within Jezero crater. Prior work showed that igneous crater floor Séítah and Máaz formations have mafic mineralogy with alteration phases that indicate multiple episodes of aqueous alteration. In this work, we extend the analyses of hydration to targets in the Jezero western fan delta, using data from the SHERLOC (Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals) Raman spectrometer. Spectral features, for example, sulfate and hydration peak positions and shapes, vary within, and across the crater floor and western fan. The proportion of targets with hydration associated with sulfates was approximately equal in the crater floor and the western fan. All hydrated targets in the crater floor and upper fan showed bimodal hydration peaks at ∼3,200 and ∼3,400 cm−1. The sulfate symmetric stretch at ∼1,000 cm−1 coupled with a hydration peak at ∼3,400 cm−1 indicate that MgSO4·nH2O (2 < n ≤ 5) is a likely hydration carrier phase in all units, perhaps paired with low-hydration (n ≤ 1) amorphous Mg-sulfates, indicated by the ∼3,200 cm−1 peak. Low-hydration MgSO4·nH2O (n = 1–2) are more prevalent in the fan, and hydrated targets in the fan front only had one peak at ∼3,400 cm−1. While anhydrite co-occurs with hydrated Mg-sulfates in the crater floor and fan front, hydrated Ca-sulfates are observed instead at the top of the upper fan. Collectively, the data imply aqueous deposition of sediments with formation of salts from high ionic strength fluids and subsequent aridity to preserve the observed hydration states.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- anhydrite
- fan delta
- hydration
- Mars
- mineralogy
- sedimentary rock
- sulfate
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Phua, Yu Yu
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Ehlmann, Bethany ...
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Siljeström, Sand ...
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Czaja, Andrew D.
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Beck, Pierre
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Connell, Stephan ...
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Wiens, Roger C.
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Jakubek, Ryan S.
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Williams, Rebecc ...
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Zorzano, Maria-P ...
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Minitti, Michell ...
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Pascuzzo, Alyssa ...
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Hand, Kevin P.
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Bhartia, Rohit
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Kah, Linda C.
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Mandon, Lucia
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Razzell Hollis, ...
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Scheller, Eva L.
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Sharma, Sunanda
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Steele, Andrew
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Uckert, Kyle
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Williford, Kenne ...
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Yanchilina, Anas ...
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