Major volatiles evolved from eolian materials in Gale crater

Autor: C. A. Knudson, Cyril Szopa, Heather B. Franz, Charles Malespin, Jennifer L. Eigenbrode, Brad Sutter, Jennifer C. Stern, G. M. Wong, Douglas W. Ming, Rafael Navarro-González, Caroline Freissinet, P. Douglas Archer, Paul R. Mahaffy, Amy McAdam
Přispěvatelé: NASA Goddard Space Flight Center (GSFC), NASA Johnson Space Center (JSC), NASA, Jacobs Technology ESCG, Center for Research and Exploration in Space Science and Technology [GSFC] (CRESST), Pennsylvania State University (Penn State), Penn State System, PLANETO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Instituto de Ciencias Nucleares [Mexico], Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Universidad Nacional Autónoma de México (UNAM)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Geophysical Research Letters
Geophysical Research Letters, 2018, 45 (19), pp.10,240-10,248. ⟨10.1029/2018GL079059⟩
Geophysical Research Letters, American Geophysical Union, 2018, 45 (19), pp.10,240-10,248. ⟨10.1029/2018GL079059⟩
ISSN: 0094-8276
1944-8007
DOI: 10.1029/2018GL079059⟩
Popis: International audience; The Sample Analysis at Mars (SAM) on the Curiosity rover analyzed the major volatile content of four eolian samples at three locations in Gale crater. The Rocknest sample was taken from an inactive sand shadow with a significant component of dust‐sized grains, while Gobabeb and Ogunquit Beach samples were taken from different locations in the Bagnold Dune field and had dust‐free, fine sand sized grains. All eolian samples possessed more oxychlorine, carbon, and nitrate relative to sedimentary materials in Gale crater. Evolved CO2 above 450°C was consistent with ~0.7 and ~0.4 wt. % carbonate in the Bagnold Dunes and Rocknest materials, respectively, with a regional source inside Gale crater. The fine‐grained phase of Rocknest was enriched in adsorbed water and perhaps in Fe sulfate and Fe nitrate/nitrite compared to coarser Bagnold materials, and was estimated to contain up to ~0.1 wt. % of organic carbon.
Databáze: OpenAIRE
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