scholarly journals Water and chlorine content in the Martian soil along the first 1900 m of the Curiosity rover traverse as estimated by the DAN instrument

2014 ◽  
Vol 119 (7) ◽  
pp. 1579-1596 ◽  
Author(s):  
I. G. Mitrofanov ◽  
M. L. Litvak ◽  
A. B. Sanin ◽  
R. D. Starr ◽  
D. I. Lisov ◽  
...  
Keyword(s):  
Chlorine Content ◽  
Martian Soil ◽  
Curiosity Rover

Estimation of Water Content in Vera Rubin Ridge and Glen Torridon areas Based on Measurements of the MSL/DAN Instrument in Gale crater

2021 ◽  
Author(s):  
Sergei Nikiforov ◽  
Maya Djachkova ◽  
Igor Mitrofanov ◽  
Maxim Litvak ◽  
Denis Lisov ◽  
...  
Keyword(s):  
Water Content ◽  
Qualitative Difference ◽  
Bound Water ◽  
Data Set ◽  
Imaging Spectrometer ◽  
Gale Crater ◽  
Martian Soil ◽  
Notable Increase ◽  
Bound Water Content ◽  
Curiosity Rover

<p>This work presents the latest results on the estimations of Water Equivalent Hydrogen (WEH) gathered in martian areas Vera Rubin ridge (VRR) and Glen Torridon (GT) by the Dynamic Albedo of Neutron (DAN) instrument installed onboard NASA’s Curiosity rover. The main science objective of DAN is to study bound water content in shallow layer of martian subsurface down to 0.6 m [1].</p><p>Extensive scientific campaign on Vera Rubin ridge was started in the middle of 2017 and lasted until the beginning of 2019 when the rover reached another region – Glen Torridon. VRR is mostly related to hematite minerals that might be formed in the presence of liquid water. On the other hand, GT region is thought to be associated with clay minerals, according to CRISM observations [2].</p><p>We will present the latest results on DAN passive observations in these Mars areas. Data are referred to the period of more than 3 years of observations or MSL traverse segment from 17 km to 23 km. The main result is the notable increase of WEH in GT in comparison with VRR, as well as in comparison with the whole Curiosity traverse. Possibly, the increase may indicate on the qualitative difference in neutron-absorption elements that are forming the soil of the GT region.</p><p>References:</p><p>[1] <em>Mitrofanov, I. G., et al., (2014). Water and chlorine content in the Martian soil along the first 1900 m of the Curiosity rover traverse as estimated by the DAN instrument. J. Geophys. Res., 119(7), 1579–1596. doi:10.1002/2013JE004553.</em></p><p>[2] <em>Murchie, S. L., et al. (2009), Compact Reconnaissance Imaging Spectrometer for Mars investigation and data set from the Mars Reconnaissance Orbiter's primary science phase, J. Geophys. Res., 114, E00D07, doi:10.1029/2009JE003344.</em></p>

scholarly journals Quantitative Raman calibration of sulfate-bearing polymineralic mixtures: a S quantification in sedimentary rocks on Mars

2018 ◽  
Vol 83 (1) ◽  
pp. 57-69 ◽  
Author(s):  
Chloé Larre ◽  
Yann Morizet ◽  
Catherine Guillot-Deudon ◽  
Fabien Baron ◽  
Nicolas Mangold
Keyword(s):  
Sedimentary Rocks ◽  
Major Elements ◽  
Martian Soil ◽  
Natural Silicate ◽  
Climatic Evolution ◽  
Mechanical Mixtures ◽  
Non Destructive ◽  
Calibration Equations ◽  
Voigt Function ◽  
Curiosity Rover

AbstractThe NASA 2020 Mars mission is a Curiosity-type rover whose objective is to improve the knowledge of the geological and climatic evolution of Mars and to collect rock samples for return to Earth. The new rover has a payload of seven instruments including the SuperCam instrument which consists of four tools including a Raman spectrometer. This Raman device will be non-destructive and will analyse the surface remotely in order to determine the mineralogy of rocks and, by extent, to detect and quantify major elements such as sulfur. Sulfur has been detected as sulfate (Ca,Mg,Fe-sulfates) in sedimentary rocks. This element is difficult to quantify using the laser ablation tool of the ChemCam instrument on-board the Curiosity rover.We propose a Raman calibration to constrain the sulfur abundance in polymineralic mixtures. We acquired Raman signatures on binary and ternary mechanical mixtures containing Ca and Mg sulfates, mixed with natural silicate minerals supposed to be relevant to basaltic-sedimentary rocks at the surface of Mars: olivine, clinopyroxene, orthopyroxene and plagioclase. Using the Voigt function to process the Raman spectra from samples extracted from our mixtures allows us to calculate the initial proportions of our preparations of Ca and Mg sulfates. From these simulations, calibration equations have been provided allowing us to determine sulfate proportions (CaSO4 and MgSO4) in a mixture with basaltic minerals. With the presented calibration, S can be quantified at a lower limit of 0.7 wt.% in Martian soil.

MORPHOLOGICAL DIVERSITY OF MARTIAN EOLIAN BEDFORMS AS REVEALED BY THE CURIOSITY ROVER AT GALE CRATER, MARS

2017 ◽  
Author(s):  
Mathieu G.A. Lapotre ◽  
◽  
Ryan C. Ewing ◽  
Ryan C. Ewing ◽  
Michael P. Lamb ◽  
...  
Keyword(s):  
Morphological Diversity ◽  
Gale Crater ◽  
Curiosity Rover

MATCHING MARS CURIOSITY ROVER PICTURES WITH HIRISE ORBITAL IMAGERY TO EXAMINE THE PEACE VALLIS FAN

2017 ◽  
Author(s):  
Niky Taylor ◽  
◽  
L. Scuderi ◽  
Horton Newsom ◽  
Marisa Palucis ◽  
...  
Keyword(s):  
Curiosity Rover

Analysis of microbial lipids deposited on Mars Global Simulant (MGS-1) by geomatrix-assisted laser desorption/ionization-mass spectrometry

2021 ◽  
pp. 1-7
Author(s):  
Alef dos Santos ◽  
Edson Rodrigues-Filho ◽  
Manoel Gustavo Petrucelli Homem
Keyword(s):  
Mass Spectrometry ◽  
Laser Desorption ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Laser Desorption Ionization ◽  
Organic Substances ◽  
Microbial Lipids ◽  
Desorption Ionization ◽  
Martian Soil ◽  
Planetary Missions

Abstract Lipids are among the organic substances that can work as biosignatures, indicating life in an environment. We present an experimental investigation concerning analysis of lipids from a microbial source deposited on the Mars Global Simulant (MGS-1) regolith by geomatrix-assisted laser desorption/ionization-mass spectrometry (GALDI-MS). Our results indicate that lipids from intact microbial cells of a black yeast strain can be detected in these mimetic samples of Martian soil. These lipid molecules are predominantly associated with the occurrence of adducts in the GALDI-MS spectra. The results can be helpful in the planning of future planetary missions.

Electromagnetic measurements on Martian soil analogs: Implications for MARSIS and SHARAD radars in detecting subsoil water

2007 ◽  
Vol 55 (1-2) ◽  
pp. 193-202 ◽  
Author(s):  
Annamaria Cereti ◽  
Giuliano Vannaroni ◽  
Davide Del Vento ◽  
Elena Pettinelli
Keyword(s):  
Subsoil Water ◽  
Martian Soil ◽  
Electromagnetic Measurements
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