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Title: In Situ Detection of Boron by ChemCam on Mars

Journal Article · · Geophysical Research Letters
DOI:https://doi.org/10.1002/2017GL074480· OSTI ID:1394983
ORCiD logo [1];  [2]; ORCiD logo [1];  [3];  [4];  [5];  [6];  [7];  [8];  [9]; ORCiD logo [1];  [10]; ORCiD logo [1]; ORCiD logo [1];  [2];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Ursinus College, Collegeville, PA (United States). Chemistry Dept.
  3. California Inst. of Technology (CalTech), Pasadena, CA (United States). Division of Geological and Planetary Sciences
  4. NASA Ames Research Center (ARC), Moffett Field, Mountain View, CA (United States)
  5. Univ. of Leicester (United Kingdom). Dept. of Physics and Astronomy
  6. Open Univ., Milton Keynes (United Kingdom). Dept. of Earth Science
  7. Space Science Inst., Boulder, CO (United States)
  8. US Geological Survey (USGS) Flagstaff, AZ (United States)
  9. Univ. of Copenhagen (Denmark). Natural History Museum of Denmark
  10. Centre National d'etudes spatiales (CNES), Paris (France)

Here, we report the first in situ detection of boron on Mars. Boron has been detected in Gale crater at levels <0.05 wt % B by the NASA Curiosity rover ChemCam instrument in calcium-sulfate-filled fractures, which formed in a late-stage groundwater circulating mainly in phyllosilicate-rich bedrock interpreted as lacustrine in origin. We also consider two main groundwater-driven hypotheses to explain the presence of boron in the veins: leaching of borates out of bedrock or the redistribution of borate by dissolution of borate-bearing evaporite deposits. Our results suggest that an evaporation mechanism is most likely, implying that Gale groundwaters were mildly alkaline. On Earth, boron may be a necessary component for the origin of life; on Mars, its presence suggests that subsurface groundwater conditions could have supported prebiotic chemical reactions if organics were also present and provides additional support for the past habitability of Gale crater.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
National Aeronautics and Space Administration (NASA); USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1394983
Report Number(s):
LA-UR-17-24987
Journal Information:
Geophysical Research Letters, Vol. 44, Issue 17; ISSN 0094-8276
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 43 works
Citation information provided by
Web of Science

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Cited By (4)

Application of socio-technical systems models to Martian colonisation and society build journal September 2019
The origin of life as a planetary phenomenon journal February 2020
A Two Components Approach for Long Range Remote Raman and Laser-Induced Breakdown (LIBS) Spectroscopy Using Low Laser Pulse Energy journal November 2018
Comet Pond II: Synergistic Intersection of Concentrated Extraterrestrial Materials and Planetary Environments to Form Procreative Darwinian Ponds journal May 2018

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