A5054915077- Planetary Science and Exploration
- Astro and Planetary Science
- Geology and Paleoclimatology Research
- Layered Double Hydroxides Synthesis and Applications
- Space Science and Extraterrestrial Life
- Innovations in Concrete and Construction Materials
- Bone Tissue Engineering Materials
- Additive Manufacturing and 3D Printing Technologies
- Anaerobic Digestion and Biogas Production
- Soil Carbon and Nitrogen Dynamics
- Geological and Geochemical Analysis
- Isotope Analysis in Ecology
- Clay minerals and soil interactions
- Soil and Water Nutrient Dynamics
- Recycling and utilization of industrial and municipal waste in materials production
- Magnesium Oxide Properties and Applications
- Building materials and conservation
Johnson Space Center
2024-2025
Lunar and Planetary Institute
2024
Texas A&M University
2020-2022
Ancient Mars had surface liquid water and a dense carbon dioxide (CO 2 )–rich atmosphere. Such an atmosphere would interact with crustal rocks, potentially leaving mineralogical record of its presence. We analyzed the composition 89-meter stratigraphic section Gale crater, Mars, using data collected by Curiosity rover. An iron carbonate mineral, siderite, occurs in abundances 4.8 to 10.5 weight %, colocated highly water-soluble salts. infer that siderite formed water-limited conditions,...
For more than a decade, the CheMin X-ray diffraction instrument on Mars Science Laboratory rover, Curiosity, has been returning definitive and quantitative mineralogical mineral–chemistry data from ~3.5-billion-year-old (Ga) sediments in Gale crater, Mars. To date, 40 drilled rock samples three scooped soil have analyzed during rover’s 30+ km transit. These document mineralogy of over 800 m flat-lying fluvial, lacustrine, aeolian sedimentary rocks that comprise lower strata central mound...
This study presents mineral composition estimates of rock and sediment samples analyzed with the CheMin X-ray diffraction instrument on board NASA Mars Science Laboratory rover, Curiosity, in Gale crater, Mars. Mineral is estimated using crystal-chemically derived algorithms applied to data, specifically unit-cell parameters. The groups characterized include those found major abundance by (i.e., feldspar, olivine, pyroxene, spinel oxide). In addition estimating phases observed we place their...
The construction industry is being buffeted by winds of change, balancing the urgent need to remedy deteriorating infrastructure in developed world and push build new emerging economies whilst devising means better its catastrophic carbon footprint. Much deleterious environmental impact results from utilization concrete as well inefficiencies across process that result considerable waste energy expenditure. Additive manufacturing methods stand poised substantially transform enhancing...
Gypsum is a common mineral at Gale crater on Mars, currently being explored by the Mars Science Laboratory (MSL) rover, Curiosity. In this paper, we summarize associations of gypsum with other sulfate minerals (bassanite, anhydrite, jarosite, starkeyite, and kieserite) from lowest levels crater’s northern moat zone (Aeolis Palus) up through ~0.8 km stratigraphic section in lower slopes sedimentary mound developed around central peak, Aeolis Mons (informally, Mount Sharp). The analysis based...