Organic matter preserved in 3-billion-year-old mudstones at Gale crater, Mars
Jennifer L. Eigenbrode
(1)
,
Roger E. Summons
(2)
,
Andrew Steele
(3)
,
Caroline Freissinet
(1, 4)
,
Maeva Millan
(5)
,
Rafael Navarro-González
(6)
,
Brad Sutter
(7, 8)
,
Amy Mcadam
(1)
,
Heather B. Franz
(1)
,
Daniel P. Glavin
(1)
,
Paul D. Archer
(7)
,
Paul R. Mahaffy
(1)
,
Pamela G. Conrad
(1, 3)
,
Joel A. Hurowitz
(9)
,
John P. Grotzinger
(10)
,
Sanjeev Gupta
(11)
,
Doug W. Ming
(8)
,
Dawn Y. Sumner
(12)
,
Cyril Szopa
(4)
,
Charles Malespin
(1)
,
Arnaud Buch
(13)
,
Patrice Coll
(14)
1
GSFC -
NASA Goddard Space Flight Center
2 EAPS - Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge]
3 Geophysical Laboratory [Carnegie Institution]
4 PLANETO - LATMOS
5 GU - Georgetown University [Washington]
6 Instituto de Ciencias Nucleares [Mexico]
7 Jacobs Technology ESCG
8 ARES - Astromaterials Research and Exploration Science
9 SBU - Stony Brook University [SUNY]
10 Division of Geological and Planetary Sciences [Pasadena]
11 Department of Earth Science and Engineering [Imperial College London]
12 EPS - UC Davis - Department of Earth and Planetary Sciences [Univ California Davis]
13 LGPM - Laboratoire de Génie des Procédés et Matériaux - EA 4038
14 LISA (UMR_7583) - Laboratoire Interuniversitaire des Systèmes Atmosphériques
2 EAPS - Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge]
3 Geophysical Laboratory [Carnegie Institution]
4 PLANETO - LATMOS
5 GU - Georgetown University [Washington]
6 Instituto de Ciencias Nucleares [Mexico]
7 Jacobs Technology ESCG
8 ARES - Astromaterials Research and Exploration Science
9 SBU - Stony Brook University [SUNY]
10 Division of Geological and Planetary Sciences [Pasadena]
11 Department of Earth Science and Engineering [Imperial College London]
12 EPS - UC Davis - Department of Earth and Planetary Sciences [Univ California Davis]
13 LGPM - Laboratoire de Génie des Procédés et Matériaux - EA 4038
14 LISA (UMR_7583) - Laboratoire Interuniversitaire des Systèmes Atmosphériques
Jennifer L. Eigenbrode
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- Fonction : Auteur correspondant
- PersonId : 1032992
Connectez-vous pour contacter l'auteur
Caroline Freissinet
- Fonction : Auteur
- PersonId : 183739
- IdHAL : caroline-freissinet
- ORCID : 0000-0002-6528-330X
- IdRef : 152939725
Maeva Millan
- Fonction : Auteur
- PersonId : 1033161
- IdHAL : maeva-millan
Rafael Navarro-González
- Fonction : Auteur
- PersonId : 766149
- ORCID : 0000-0002-6078-7621
Brad Sutter
- Fonction : Auteur
- PersonId : 1012776
Daniel P. Glavin
- Fonction : Auteur
- PersonId : 791832
- ORCID : 0000-0001-7779-7765
- IdRef : 152940405
Cyril Szopa
- Fonction : Auteur
- PersonId : 175829
- IdHAL : cyril-szopa
- ORCID : 0000-0002-0090-4056
- IdRef : 068537921
Résumé
Establishing the presence and state of organic matter, including its possible biosignatures, in martian materials has been an elusive quest, despite limited reports of the existence of organic matter on Mars. We report the in situ detection of organic matter preserved in lacustrine mudstones at the base of the ~3.5-billion-year-old Murray formation at Pahrump Hills, Gale crater, by the Sample Analysis at Mars instrument suite onboard the Curiosity rover. Diverse pyrolysis products, including thiophenic, aromatic, and aliphatic compounds released at high temperatures (500° to 820°C), were directly detected by evolved gas analysis. Thiophenes were also observed by gas chromatography–mass spectrometry. Their presence suggests that sulfurization aided organic matter preservation.
At least 50 nanomoles of organic carbon persists, probably as macromolecules containing 5% carbon as organic sulfur molecules.
Format du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Titre |
en
Organic matter preserved in 3-billion-year-old mudstones at Gale crater, Mars
|
Résumé |
en
Establishing the presence and state of organic matter, including its possible biosignatures, in martian materials has been an elusive quest, despite limited reports of the existence of organic matter on Mars. We report the in situ detection of organic matter preserved in lacustrine mudstones at the base of the ~3.5-billion-year-old Murray formation at Pahrump Hills, Gale crater, by the Sample Analysis at Mars instrument suite onboard the Curiosity rover. Diverse pyrolysis products, including thiophenic, aromatic, and aliphatic compounds released at high temperatures (500° to 820°C), were directly detected by evolved gas analysis. Thiophenes were also observed by gas chromatography–mass spectrometry. Their presence suggests that sulfurization aided organic matter preservation.
At least 50 nanomoles of organic carbon persists, probably as macromolecules containing 5% carbon as organic sulfur molecules.
|
Auteur(s) |
Jennifer L. Eigenbrode
1
, Roger E. Summons
2
, Andrew Steele
3
, Caroline Freissinet
1, 4
, Maeva Millan
5
, Rafael Navarro-González
6
, Brad Sutter
7, 8
, Amy Mcadam
1
, Heather B. Franz
1
, Daniel P. Glavin
1
, Paul D. Archer
7
, Paul R. Mahaffy
1
, Pamela G. Conrad
1, 3
, Joel A. Hurowitz
9
, John P. Grotzinger
10
, Sanjeev Gupta
11
, Doug W. Ming
8
, Dawn Y. Sumner
12
, Cyril Szopa
4
, Charles Malespin
1
, Arnaud Buch
13
, Patrice Coll
14
1
GSFC -
NASA Goddard Space Flight Center
( 21796 )
- Greenbelt, MD 20771
- États-Unis
2
EAPS -
Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge]
( 111351 )
- Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge, MA 02139-4307
- États-Unis
3
Geophysical Laboratory [Carnegie Institution]
( 262644 )
- Washington, D.C.
- États-Unis
4
PLANETO - LATMOS
( 541921 )
- France
5
GU -
Georgetown University [Washington]
( 472411 )
- 37th and O Streets, N.W., Washington D.C. 20057
- États-Unis
6
Instituto de Ciencias Nucleares [Mexico]
( 4698 )
- 04510 Ciudad de México, CDMX, Mexique
- Mexique
7
Jacobs Technology ESCG
( 219739 )
- 2224 Bay Area Blvd, Houston, TX 77058
- États-Unis
8
ARES -
Astromaterials Research and Exploration Science
( 219453 )
- Houston TX 77058
- États-Unis
9
SBU -
Stony Brook University [SUNY]
( 303386 )
- 100 Nicolls Road, Stony Brook, NY 11794
- États-Unis
10
Division of Geological and Planetary Sciences [Pasadena]
( 24180 )
- États-Unis
11
Department of Earth Science and Engineering [Imperial College London]
( 232362 )
- South Kensington Campus, Imperial College London, SW7 2AZ
- Royaume-Uni
12
EPS - UC Davis -
Department of Earth and Planetary Sciences [Univ California Davis]
( 503978 )
- University of California Davis,
2119 Earth and Physical Sciences • One Shields Avenue • Davis, CA 95616
- États-Unis
13
LGPM -
Laboratoire de Génie des Procédés et Matériaux - EA 4038
( 11250 )
- CentraleSupélec - Bâtiment Eiffel - 3 rue Joliot Curie 91190 GIF-SUR-YVETTE
- France
14
LISA (UMR_7583) -
Laboratoire Interuniversitaire des Systèmes Atmosphériques
( 1004864 )
- Université Paris-Est Créteil Val de Marne - Bât. Lamarck case postale 7059 - Faculté des Sciences et Technologie 61 avenue du Général de Gaulle 94010 Créteil Cedex
- France
|
Langue du document |
Anglais
|
Nom de la revue |
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Date de publication |
2018-06-07
|
Volume |
360
|
Numéro |
6393
|
Page/Identifiant |
1096 - 1101
|
Domaine(s) |
|
DOI | 10.1126/science.aas9185 |
Origine :
Fichiers produits par l'(les) auteur(s)
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