Search: onr:"swepub:oai:DiVA.org:su-208095" >
Spatial Variation i...
Spatial Variation in Results of Biosignature Analyses of Apparently Homogeneous Samples from Mars Analogue Environments in Iceland
-
Tan, George K. (author)
-
Simpson, Anna (author)
-
Holtzen, Samuel (author)
-
show more...
-
Amador, Elena (author)
-
Cable, Morgan L. (author)
-
Cantrell, Thomas (author)
-
Cullen, Thomas (author)
-
Duca, Zach (author)
-
Gentry, Diana (author)
-
Kirby, Jessica (author)
-
McCraig, Heather (author)
-
Murukesan, Gayathri (author)
-
Patel, Aditya (author)
-
Pital, Aaron (author)
-
Rader, Erika (author)
-
Rennie, Vincent (author)
-
Sutton, Scot (author)
-
Stevens, Adam (author)
-
Whitehead, Jarah (author)
-
Cullen, David C. (author)
-
- Geppert, Wolf D., 1967- (author)
- Stockholms universitet,Fysikum
-
Stockton, Amanda M. (author)
-
show less...
-
(creator_code:org_t)
- 2022-05-18
- 2022
- English.
-
In: ACS Earth and Space Chemistry. - : American Chemical Society (ACS). - 2472-3452. ; 6:6, s. 1472-1481
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- The search for signs of life on Mars and beyond is time consuming and labor-intensive; hence, it is critical to understand how to design sampling strategies that can maximize the likelihood of success. Two distinct Mars analogue environments in Iceland were selected to represent volcanic resurfacing and glacial environments where characterization of different biosignatures at various spatial scales (100 m, 10 m, 1 m, 10 cm) was performed. This study serves the twofold purposes of (1) understanding the different levels of biosignature distributions in these analogue environments and (2) the spatial distributions of biosignatures in these environments, with an overarching goal of drawing lessons from low biomass Mars analogue environments to inform the best sampling strategies for sample collection strategies on Mars. Our results show that samples should be collected for analysis at large (at least 100 m spacing) to capture most differences within an apparently homogeneous environment of the aged resurfaced volcanic region like Mælifellssandur, whereas a smaller spacing at 10 m scale is necessary for younger glacial–volcanic environments like Fimmvörduháls. This study also illustrates the importance of understanding the variability across spatial scales in sampling design for future planetary missions.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- biosignatures
- astrobiology
- field studies
- Iceland
- volcanic sediments
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Tan, George K.
-
Simpson, Anna
-
Holtzen, Samuel
-
Amador, Elena
-
Cable, Morgan L.
-
Cantrell, Thomas
-
show more...
-
Cullen, Thomas
-
Duca, Zach
-
Gentry, Diana
-
Kirby, Jessica
-
McCraig, Heather
-
Murukesan, Gayat ...
-
Patel, Aditya
-
Pital, Aaron
-
Rader, Erika
-
Rennie, Vincent
-
Sutton, Scot
-
Stevens, Adam
-
Whitehead, Jarah
-
Cullen, David C.
-
Geppert, Wolf D. ...
-
Stockton, Amanda ...
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Earth and Relate ...
- Articles in the publication
-
ACS Earth and Sp ...
- By the university
-
Stockholm University