DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Bagnold Dunes Campaign Phase 2: Visible/Near-Infrared Reflectance Spectroscopy of Longitudinal Ripple Sands

Journal Article · · Geophysical Research Letters
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [7];  [7]; ORCiD logo [7]; ORCiD logo [8];  [2]; ORCiD logo [9]
  1. The Johns Hopkins Univ. Applied Physics Lab., Laurel, MD (United States)
  2. Arizona State Univ., Tempe, AZ (United States)
  3. Planetary Science Institute, Tucson, AZ (United States)
  4. Univ. of Winnipeg, Winnipeg, MB (Canada)
  5. Jet Propulsion Laboratory, Pasadena, CA (United States); California Inst. of Technology (CalTech), Pasadena, CA (United States)
  6. Jet Propulsion Laboratory, Pasadena, CA (United States)
  7. Univ. de Toulouse, Toulouse (France)
  8. Univ. of New Brunswick, Fredericton, NB (Canada)
  9. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

As part of the Phase 2 Bagnold Dune campaign at Gale Crater, Mars, constraints on the geochemistry, mineralogy, and oxidation state of pristine and disturbed linear sand ripples were made using visible/near–infrared spectral observations for comparison to Phase 1 spectra of the barchan dunes to the north. Spectra acquired by the ChemCam and Mastcam instruments (400–1,000 nm) at four Phase 2 locations revealed similar overall spectral trends between the two regions, but most Phase 2 sands were redder in the visible wavelengths. The majority of targets exhibited lower red/infrared ratios, higher ~530–nm band depths, and higher red/blue ratios than Phase 1 samples, suggesting a greater proportion of redder, fine–grained, ferric sands in Phase 2 samples. Here, this is consistent with the slightly greater proportion of hematite in Phase 2 samples as determined from CheMin analyses of the Ogunquit sands, which may reflect contamination from the surrounding hematite–bearing Murray formation bedrock.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
National Aeronautics and Space Administration (NASA); USDOE
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1508549
Report Number(s):
LA-UR-18-28844
Journal Information:
Geophysical Research Letters, Vol. 45, Issue 18; ISSN 0094-8276
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

References (28)

Visible to near-infrared MSL/Mastcam multispectral imaging: Initial results from select high-interest science targets within Gale Crater, Mars journal June 2017
Constraints on iron sulfate and iron oxide mineralogy from ChemCam visible/near-infrared reflectance spectroscopy of Mt. Sharp basal units, Gale Crater, Mars journal July 2016
Mars Exploration Rover Athena Panoramic Camera (Pancam) investigation: MER ATHENA PANORAMIC CAMERA INVESTIGATION journal November 2003
The ChemCam Instrument Suite on the Mars Science Laboratory (MSL) Rover: Science Objectives and Mast Unit Description journal July 2012
Curiosity's Investigation of the Bagnold Dunes, Gale Crater: Overview of the Two‐Phase Scientific Campaign and Introduction to the Special Collection journal October 2018
ChemCam activities and discoveries during the nominal mission of the Mars Science Laboratory in Gale crater, Mars journal January 2016
A comprehensive physical model for light reflection
  • He, Xiao D.; Torrance, Kenneth E.; Sillion, François X.
  • Proceedings of the 18th annual conference on Computer graphics and interactive techniques - SIGGRAPH '91 https://doi.org/10.1145/122718.122738
conference January 1991
Theory of reflectance and emittance spectroscopy: Book Review journal July 2012
ChemCam: Chemostratigraphy by the First Mars Microprobe journal February 2015
Mineralogic and compositional properties of Martian soil and dust: Results from Mars Pathfinder journal January 2000
Sand Grain Sizes and Shapes in Eolian Bedforms at Gale Crater, Mars journal September 2018
The ChemCam Instrument Suite on the Mars Science Laboratory (MSL) Rover: Body Unit and Combined System Tests journal June 2012
Chemical Diversity of Sands Within the Linear and Barchan Dunes of the Bagnold Dunes, Gale Crater, as Revealed by APXS Onboard Curiosity journal September 2018
Morphologic Diversity of Martian Ripples: Implications for Large‐Ripple Formation journal October 2018
The Mars Science Laboratory Curiosity rover Mastcam instruments: Preflight and in-flight calibration, validation, and data archiving : MSL/Mastcam Calibration journal July 2017
Mineralogy, composition, and alteration of Mars Pathfinder rocks and soils: Evidence from multispectral, elemental, and magnetic data on terrestrial analogue, SNC meteorite, and Pathfinder samples journal January 2000
Pre-flight calibration and initial data processing for the ChemCam laser-induced breakdown spectroscopy instrument on the Mars Science Laboratory rover journal April 2013
The Bagnold Dunes in Southern Summer: Active Sediment Transport on Mars Observed by the Curiosity Rover journal September 2018
ChemCam passive reflectance spectroscopy of surface materials at the Curiosity landing site, Mars journal March 2015
The ChemCam Remote Micro-Imager at Gale crater: Review of the first year of operations on Mars journal March 2015
Low-temperature reflectivity spectra of red hematite and the color of Mars journal April 1997
Dust deposition on the decks of the Mars Exploration Rovers: 10 years of dust dynamics on the Panoramic Camera calibration targets: DUST ON THE MER PANCAM CALTARGETS journal May 2015
Mineralogy of an active eolian sediment from the Namib dune, Gale crater, Mars: In Situ Mineralogy of the Bagnold Dunes journal November 2017
The Mars Science Laboratory (MSL) Bagnold Dunes Campaign, Phase I: Overview and introduction to the special issue: Bagnold Dunes Campaign Overview journal January 2018
Chemistry, mineralogy, and grain properties at Namib and High dunes, Bagnold dune field, Gale crater, Mars: A synthesis of Curiosity rover observations: Bagnold Dune Sands Composition journal December 2017
A comprehensive physical model for light reflection journal July 1991
Compositional variations in sands of the Bagnold Dunes, Gale crater, Mars, from visible-shortwave infrared spectroscopy and comparison with ground truth from the Curiosity rover: BAGNOLD DUNES: COMPOSITION FROM ORBIT journal December 2017
Sand Mineralogy Within the Bagnold Dunes, Gale Crater, as Observed In Situ and From Orbit journal September 2018