E. A. Cloutis
A5000617106- Planetary Science and Exploration
- Astro and Planetary Science
- Isotope Analysis in Ecology
- Space Exploration and Technology
- Geochemistry and Geologic Mapping
- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- Methane Hydrates and Related Phenomena
- Laser-induced spectroscopy and plasma
- Hydrocarbon exploration and reservoir analysis
- Stellar, planetary, and galactic studies
- Spectroscopy and Chemometric Analyses
- High-pressure geophysics and materials
- Space Science and Extraterrestrial Life
- Spacecraft and Cryogenic Technologies
- Nuclear Physics and Applications
- Spaceflight effects on biology
- Paleontology and Stratigraphy of Fossils
- Mineralogy and Gemology Studies
- Cultural Heritage Materials Analysis
- Building materials and conservation
- Spacecraft Design and Technology
- Atmospheric and Environmental Gas Dynamics
- Spectroscopy Techniques in Biomedical and Chemical Research
- Geomagnetism and Paleomagnetism Studies
University of Winnipeg
2016-2025
University of Copenhagen
2013-2022
Space Photonics (United States)
2021
United States Geological Survey
2021
Ithaca College
2021
Okayama University
2021
University of Manitoba
2017-2021
University of Oxford
2018
University of Arizona
2016-2017
MPB Technologies & Communications (Canada)
2016
Abstract During its approach to asteroid (101955) Bennu, NASA’s Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) spacecraft surveyed Bennu’s immediate environment, photometric properties, rotation state. Discovery of a dusty natural satellite, or unexpected characteristics would have had consequences for the mission’s safety observation strategy. Here we show that observations during this period were highly sensitive satellites (sub-meter...
Sedimentary rocks at Yellowknife Bay (Gale crater) on Mars include mudstone sampled by the Curiosity rover. The samples, John Klein and Cumberland, contain detrital basaltic minerals, calcium sulfates, iron oxide or hydroxides, sulfides, amorphous material, trioctahedral smectites. smectite has basal spacing of ~10 angstroms, indicating little interlayer hydration. Cumberland both ~13.2 angstroms. larger suggests a partially chloritized magnesium facilitating H2O retention. Basaltic minerals...
Pyroxene reflectance and transmittance spectra have been examined in a search for systematic relationships between spectral features compositional variations to assess the applicability of Spectroscopy pyroxene geothermometry. Orthopyroxenes containing up ∼11 % Wollastonite show positive correlation Fe 2+ content wavelength positions major absorption bands. Aluminum‐rich orthopyroxenes display bands at lower than expected wavelengths. Spectral‐compositional are more complex clinopyroxenes,...
Spectral reflectance measurements of characterized (phase abundance, particle size) mixtures olivine and orthopyroxene were utilized to define the correlations between spectral albedo parameters such assemblages their mineralogical or textural properties. Thirty‐three different falling into three general classes (relative ratioed, absolute albedo, wavelength) investigated for empirical sensitivity one more mixture Theoretical considerations previous experimental observations understand...
Abstract On the NASA 2020 rover mission to Jezero crater, remote determination of texture, mineralogy and chemistry rocks is essential quickly thoroughly characterize an area optimize selection samples for return Earth. As part Perseverance payload, SuperCam a suite five techniques that provide critical complementary observations via Laser-Induced Breakdown Spectroscopy (LIBS), Time-Resolved Raman Luminescence (TRR/L), visible near-infrared spectroscopy (VISIR), high-resolution color imaging...
Abstract We review the results of an extensive campaign to determine physical, geological, and dynamical properties asteroid (101955) Bennu. This investigation provides information on orbit, shape, mass, rotation state, radar response, photometric, spectroscopic, thermal, regolith, environmental combine these data with cosmochemical models develop a hypothetical timeline for Bennu's formation evolution. infer that Bennu is ancient object has witnessed over 4.5 Gyr solar system history. Its...
The Perseverance rover landed in Jezero crater, Mars, to investigate ancient lake and river deposits. We report observations of the crater floor, below crater's sedimentary delta, finding that floor consists igneous rocks altered by water. lowest exposed unit, informally named Séítah, is a coarsely crystalline olivine-rich rock, which accumulated at base magma body. Magnesium-iron carbonates along grain boundaries indicate reactions with carbon dioxide-rich water under water-poor conditions....
The Perseverance rover landed in Jezero crater, Mars, February 2021. We used the Scanning Habitable Environments with Raman and Luminescence for Organics Chemicals (SHERLOC) instrument to perform deep-ultraviolet fluorescence spectroscopy of three rocks within crater. identify evidence two distinct ancient aqueous environments at different times. Reactions liquid water formed carbonates an olivine-rich igneous rock. A sulfate-perchlorate mixture is present rocks, which probably by later...
Before Perseverance, Jezero crater's floor was variably hypothesized to have a lacustrine, lava, volcanic airfall, or aeolian origin. SuperCam observations in the first 286 Mars days on revealed and intrusive terrain with compositional density stratification. The dominant lithology along traverse is basaltic, plagioclase enrichment stratigraphically higher locations. Stratigraphically lower, layered rocks are richer normative pyroxene. lowest observed unit has highest inferred olivine-rich...
The geological units on the floor of Jezero crater, Mars, are part a wider regional stratigraphy olivine-rich rocks, which extends well beyond crater. We investigated petrology olivine and carbonate-bearing rocks Séítah formation in Jezero. Using multispectral images x-ray fluorescence data, acquired by Perseverance rover, we performed petrographic analysis Bastide Brac outcrops within this unit. found that these composed igneous rock, moderately altered aqueous fluid. mainly made...
Abstract Improvements in optical remote sensing spectral resolution and increased data volumes necessitates the development of improved techniques for quantitative geological analysis. Laboratory studies indicate that absorption band positions, depths widths are correlated with diagnostic physicochemical mineral properties such as composition abundance. Most current analytical incapable providing comprehensive analysis hyperspectral data. Factors which must be considered campaigns include...
Light‐toned soils were exposed, through serendipitous excavations by Spirit Rover wheels, at eight locations in the Columbia Hills. Their occurrences grouped into four types on basis of geomorphic settings. At three major exposures, light‐toned are hydrous and sulfate‐rich. The spatial distributions distinct salty vary substantially: with centimeter‐scaled heterogeneities Paso Robles, Dead Sea, Shredded, Champagne‐Penny, a well‐mixed nature for occurring near summit Husband Hill, relatively...
The spectral reflectance properties of bituminous tar sands were examined in the wavelength range from 0.35 to 2.6 micrometers. Unique absorption features due all major phases, except quartz, appear spectra. intensities correlate with abundances various phases. results this study have applications remote sensing many terrestrial and extraterrestrial targets because potential similarities between sand other hydrocarbon occurrences. For example, it is found that highly polymerized hydrocarbons...
Iron-bearing minerals are a major component of planetary surfaces, and many can be identified by their characteristic absorption bands in the near-infrared (NIR). Here we present laboratory NIR spectra wide range common Fe-bearing (e.g., olivines, pyroxenes), glasses, mineral/glass mixtures. We then use this suite to evaluate effects mixtures on mineral detection methods, including olivine pyroxene spectral indices developed for Compact Reconnaissance Imaging Spectrometer Mars (CRISM)...