Volatile, Isotope, and Organic Analysis of Martian Fines with the Mars Curiosity Rover
L. A. Leshin
(1)
,
Paul R. Mahaffy
(2)
,
C. R. Webster
(3)
,
Michel Cabane
(4)
,
Patrice Coll
(5)
,
P. G. Conrad
(2)
,
P. D. Archer Jr.
(6)
,
S. K. Atreya
(7)
,
A. E. Brunner
(2, 8)
,
Arnaud Buch
(9)
,
J. L. Eigenbrode
(2)
,
G. J. Flesch
(3)
,
H. B. Franz
(2, 10)
,
Caroline Freissinet
(2)
,
Daniel P. Glavin
(2)
,
A. C. Mcadam
(2)
,
K. E. Miller
(11)
,
D. W. Ming
(6)
,
R. V. Morris
(6)
,
R. Navarro-González
(12)
,
P. B. Niles
(6)
,
T. Owen
(13)
,
R. O. Pepin
(14)
,
S. Squyres
(15)
,
A. Steele
(16)
,
J. C. Stern
(2)
,
R. E. Summons
(11)
,
D. Y. Sumner
(17)
,
B. Sutter
(6, 18)
,
Cyril Szopa
(4)
,
Samuel Teinturier
(19, 20)
,
M. G. Trainer
(2)
,
J. J. Wray
(21)
,
J. P. Grotzinger
(22)
1
Department of Earth and Environmental Sciences [Troy, NY]
2 GSFC - NASA Goddard Space Flight Center
3 JPL - Jet Propulsion Laboratory
4 PLANETO - LATMOS
5 LISA (UMR_7583) - Laboratoire Interuniversitaire des Systèmes Atmosphériques
6 ARES - Astromaterials Research and Exploration Science
7 AOSS - Department of Atmospheric, Oceanic, and Space Sciences [Ann Arbor]
8 Department of Astronomy [College Park]
9 LGPM - Laboratoire de Génie des Procédés et Matériaux - EA 4038
10 CRESST - Center for Research and Exploration in Space Science and Technology [GSFC]
11 EAPS - Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge]
12 Laboratorio de Química de Plasmas y Estudios Planetarios [Mexico]
13 Institute for Astronomy [Honolulu]
14 School of Physics and Astronomy [Minneapolis]
15 Cornell University [New York]
16 Geophysical Laboratory [Carnegie Institution]
17 UC Davis - University of California [Davis]
18 Jacobs Technology ESCG
19 IPSL - Institut Pierre-Simon-Laplace
20 LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
21 School of Earth and Atmospheric Sciences [Atlanta]
22 Caltech Division of Geological and Planetary Sciences
2 GSFC - NASA Goddard Space Flight Center
3 JPL - Jet Propulsion Laboratory
4 PLANETO - LATMOS
5 LISA (UMR_7583) - Laboratoire Interuniversitaire des Systèmes Atmosphériques
6 ARES - Astromaterials Research and Exploration Science
7 AOSS - Department of Atmospheric, Oceanic, and Space Sciences [Ann Arbor]
8 Department of Astronomy [College Park]
9 LGPM - Laboratoire de Génie des Procédés et Matériaux - EA 4038
10 CRESST - Center for Research and Exploration in Space Science and Technology [GSFC]
11 EAPS - Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge]
12 Laboratorio de Química de Plasmas y Estudios Planetarios [Mexico]
13 Institute for Astronomy [Honolulu]
14 School of Physics and Astronomy [Minneapolis]
15 Cornell University [New York]
16 Geophysical Laboratory [Carnegie Institution]
17 UC Davis - University of California [Davis]
18 Jacobs Technology ESCG
19 IPSL - Institut Pierre-Simon-Laplace
20 LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
21 School of Earth and Atmospheric Sciences [Atlanta]
22 Caltech Division of Geological and Planetary Sciences
L. A. Leshin
- Fonction : Auteur
- PersonId : 950259
Arnaud Buch
- Fonction : Auteur
- PersonId : 1043635
Caroline Freissinet
- Fonction : Auteur
- PersonId : 183739
- IdHAL : caroline-freissinet
- ORCID : 0000-0002-6528-330X
- IdRef : 152939725
Cyril Szopa
- Fonction : Auteur
- PersonId : 175829
- IdHAL : cyril-szopa
- ORCID : 0000-0002-0090-4056
- IdRef : 068537921
Résumé
Samples from the Rocknest aeolian deposit were heated to ~835°C under helium flow and evolved gases analyzed by Curiosity's Sample Analysis at Mars instrument suite. H2O, SO2, CO2, and O2 were the major gases released. Water abundance (1.5 to 3 weight percent) and release temperature suggest that H2O is bound within an amorphous component of the sample. Decomposition of fine-grained Fe or Mg carbonate is the likely source of much of the evolved CO2. Evolved O2 is coincident with the release of Cl, suggesting that oxygen is produced from thermal decomposition of an oxychloride compound. Elevated δD values are consistent with recent atmospheric exchange. Carbon isotopes indicate multiple carbon sources in the fines. Several simple organic compounds were detected, but they are not definitively martian in origin.