Identifying Shocked Feldspar on Mars Using Perseverance Spectroscopic Instruments : Implications for Geochronology Studies on Returned Samples
(2022) In Earth, Moon and Planets 126(2).- Abstract
The Perseverance rover (Mars 2020) mission, the first step in NASA’s Mars Sample Return (MSR) program, will select samples for caching based on their potential to improve understanding Mars’ astrobiological, geological, geochemical, and climatic evolution. Geochronologic analyses will be among the key measurements planned for returned samples. Assessing a sample’s shock history will be critical because shock metamorphism could influence apparent sample age. Shock effects in one Mars-relevant mineral class, plagioclase feldspar, have been well-documented using various spectroscopy techniques (thermal infrared reflectance, emission, and transmission spectroscopy, Raman, and luminescence). A subset of these data will be obtained with the... (More)
The Perseverance rover (Mars 2020) mission, the first step in NASA’s Mars Sample Return (MSR) program, will select samples for caching based on their potential to improve understanding Mars’ astrobiological, geological, geochemical, and climatic evolution. Geochronologic analyses will be among the key measurements planned for returned samples. Assessing a sample’s shock history will be critical because shock metamorphism could influence apparent sample age. Shock effects in one Mars-relevant mineral class, plagioclase feldspar, have been well-documented using various spectroscopy techniques (thermal infrared reflectance, emission, and transmission spectroscopy, Raman, and luminescence). A subset of these data will be obtained with the SuperCam and SHERLOC (Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals) instruments onboard Perseverance to inform caching decisions for MSR. Here, we review shock indicators in plagioclase feldspar as revealed in Raman, luminescence, and IR spectroscopy lab data, with an emphasis on Raman spectroscopy. We consider how this information may inform caching decisions for selecting optimal samples for geochronology measurements. We then identify challenges and make recommendations for both in situ measurements performed with SuperCam and SHERLOC and for supporting lab studies to enhance the success of geochronologic analyses after return to Earth.
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- author
- Shkolyar, S. ; Jaret, S. J. ; Cohen, B. A. ; Johnson, J. R. ; Beyssac, O. ; Madariaga, J. M. ; Wiens, R. C. ; Ollila, A. ; Holm-Alwmark, S. LU and Liu, Y.
- organization
- publishing date
- 2022-10
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Mars sample return, Perseverance rover, Spectroscopy
- in
- Earth, Moon and Planets
- volume
- 126
- issue
- 2
- article number
- 4
- publisher
- Springer
- external identifiers
-
- scopus:85129631579
- ISSN
- 0167-9295
- DOI
- 10.1007/s11038-022-09546-6
- language
- English
- LU publication?
- yes
- id
- 72b4e42b-4851-42d0-9eed-cde0d257d7e2
- date added to LUP
- 2022-08-15 12:47:06
- date last changed
- 2022-08-23 00:06:34
@article{72b4e42b-4851-42d0-9eed-cde0d257d7e2, abstract = {{<p>The Perseverance rover (Mars 2020) mission, the first step in NASA’s Mars Sample Return (MSR) program, will select samples for caching based on their potential to improve understanding Mars’ astrobiological, geological, geochemical, and climatic evolution. Geochronologic analyses will be among the key measurements planned for returned samples. Assessing a sample’s shock history will be critical because shock metamorphism could influence apparent sample age. Shock effects in one Mars-relevant mineral class, plagioclase feldspar, have been well-documented using various spectroscopy techniques (thermal infrared reflectance, emission, and transmission spectroscopy, Raman, and luminescence). A subset of these data will be obtained with the SuperCam and SHERLOC (Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals) instruments onboard Perseverance to inform caching decisions for MSR. Here, we review shock indicators in plagioclase feldspar as revealed in Raman, luminescence, and IR spectroscopy lab data, with an emphasis on Raman spectroscopy. We consider how this information may inform caching decisions for selecting optimal samples for geochronology measurements. We then identify challenges and make recommendations for both in situ measurements performed with SuperCam and SHERLOC and for supporting lab studies to enhance the success of geochronologic analyses after return to Earth.</p>}}, author = {{Shkolyar, S. and Jaret, S. J. and Cohen, B. A. and Johnson, J. R. and Beyssac, O. and Madariaga, J. M. and Wiens, R. C. and Ollila, A. and Holm-Alwmark, S. and Liu, Y.}}, issn = {{0167-9295}}, keywords = {{Mars sample return; Perseverance rover; Spectroscopy}}, language = {{eng}}, number = {{2}}, publisher = {{Springer}}, series = {{Earth, Moon and Planets}}, title = {{Identifying Shocked Feldspar on Mars Using Perseverance Spectroscopic Instruments : Implications for Geochronology Studies on Returned Samples}}, url = {{http://dx.doi.org/10.1007/s11038-022-09546-6}}, doi = {{10.1007/s11038-022-09546-6}}, volume = {{126}}, year = {{2022}}, }