Spectral evidence for hydrated salts in recurring slope lineae on Mars

@article{Ojha2015SpectralEF,
  title={Spectral evidence for hydrated salts in recurring slope lineae on Mars},
  author={Lujendra Ojha and Mary Beth Wilhelm and Scott L. Murchie and Alfred S. McEwen and James J. Wray and Jennifer Hanley and M. Masse and Matthew Chojnacki},
  journal={Nature Geoscience},
  year={2015},
  volume={8},
  pages={829-832}
}
Transient streaks that appear seasonally on Martian slopes are consistent with brine flows, but evidence of water or salts has been lacking. Analysis of spectral data reveals hydrated salts associated with the streaks, confirming a briny origin. 
View via Publisher
wesfiles.wesleyan.edu
508 Citations
Highly Influential Citations
32
Background Citations
160
Methods Citations
16
Results Citations
5

508 Citations

Planetary science: Jumping grains on Mars
Liquid water on Mars may be an agent of surface change, but it is unstable under the thin atmosphere. Experiments suggest water percolating though Martian hillslopes ejects sediment as it boils under…
Granular flows at recurring slope lineae on Mars indicate a limited role for liquid water
Recent liquid water flow on Mars has been proposed based on geomorphological features, such as gullies. Recurring slope lineae — seasonal flows that are darker than their surroundings — are candidate…
The water content of recurring slope lineae on Mars
Observations of recurring slope lineae (RSL) from the High‐Resolution Imaging Science Experiment have been interpreted as present‐day, seasonally variable liquid water flows; however, orbital…
Implications for the origin and evolution of Martian Recurring Slope Lineae at Hale crater from CaSSIS observations
Dry formation of recent Martian slope features
Calibration and preliminary tests of the Brine Observation Transition To Liquid Experiment on HABIT/ExoMars 2020 for demonstration of liquid water stability on Mars
Observational evidence for a dry dust-wind origin of Mars seasonal dark flows
Recurring slope lineae and chlorides on the surface of Mars
Recurring Slope Lineae (RSL) are dark streaks that appear on steep slopes on the Martian surface. While their apparent movement suggests liquid flow, remote sensing studies have not found evidence of…
Probing Heterogeneous Efflorescence of Mars-Relevant Salts with an Optical Levitator
The presence of liquid water on the surface and subsurface of Mars has been of interest because liquid water is essential for life as we know it. While pure liquid water is typically not stable on ...
Can we constrain the origin of Mars' recurring slope lineae using atmospheric observations?
...
...

References

SHOWING 1-10 OF 36 REFERENCES
Transient liquid water and water activity at Gale crater on Mars
Liquid water on equatorial Mars is inconsistent with large-scale climatic conditions. Humidity and temperature measurements by the Curiosity rover support the formation of subsurface liquid brines by…
Spectral constraints on the formation mechanism of recurring slope lineae
Recurring slope lineae (RSL) exhibit multiple lines of evidence for a wet origin. In the southern midlatitudes, they form on steep, equator‐facing slopes that are warm during southern summer. The…
Formation of recurring slope lineae by liquid brines on present‐day Mars
Recurring Slope Lineae (RSL) are small scale seasonal flow features identified by Mars Reconnaissance Orbiter that present several interesting characteristics such as an albedo contrast, seasonal…
Seasonal Flows on Warm Martian Slopes
TLDR
Recurring slope lineae (RSL) are narrow, relatively dark markings on steep slopes; repeat images from the Mars Reconnaissance Orbiter High Resolution Imaging Science Experiment show them to appear and incrementally grow during warm seasons and fade in cold seasons.
Recurring slope lineae in equatorial regions of Mars
The presence of liquid water is a requirement of habitability on a planet. Possible indicators of liquid surface water on Mars include intermittent flow-like features observed on sloping terrains.…
Mineralogy of the Martian Surface
The past fifteen years of orbital infrared spectroscopy and in situ exploration have led to a new understanding of the composition and history of Mars. Globally, Mars has a basaltic upper crust…
Spectroscopy and detectability of liquid brines on mars
Concentrated perchlorate at the Mars Phoenix landing site: Evidence for thin film liquid water on Mars
NASA's Phoenix mission, which landed on the northern plains of Mars in 2008, returned evidence of the perchlorate anion distributed evenly throughout the soil column at the landing site. Here, we use…
Reflectance spectra of hydrated chlorine salts: The effect of temperature with implications for Europa
Hydrated chlorine salts are expected to exist on a variety of planetary bodies, including inner planets such as Mars and outer planet satellites such as Europa. However, detection by remote sensing…
Evidence of martian perchlorate, chlorate, and nitrate in Mars meteorite EETA79001: Implications for oxidants and organics
...
...