Results 181 to 190 of about 381,696 (284)

Water and hydroxyl on asteroid Bennu: Reconciling remote observations with OSIRIS‐REx sample analysis

Meteoritics &Planetary Science, EarlyView.
Abstract This study investigates the spatial distribution and spectral characteristics of the broad hydration feature near 3 μm across the surface of asteroid (101955) Bennu using OVIRS (OSIRIS‐REx Visible and InfraRed Spectrometer) data. We analyzed multiple global OVIRS data sets obtained at different times throughout the Bennu day, revealing ...
Hannah H. Kaplan, Amy A. Simon, Victoria E. Hamilton, Joshua P. Emery, Dennis Reuter, Andy J. López‐Oquendo   +5 more
wiley   +1 more source

Comparative efficacy of natural and synthetic silicon fertilizers in enhancing yield and mitigating heavy metals (Cd and Pb) toxicity by modulating antioxidant activity in wheat (Triticum aestivum L.). [PDF]

BMC Plant Biol
Sohail MK, Ghafoor A, Munir M, Tahir MA, Sabah NU, Waheed H, Al Saeed AM, Turk K, Irshad L, Haroun M.   +9 more
europepmc   +1 more source

Thermal history, collisional history, and structure of the CK‐chondrite parent body

Meteoritics &Planetary Science, EarlyView.
Abstract Major chondrite groups (H, L, LL, R, EH, EL, CK) with some members of petrologic type 5 and 6 also have some members of types 3 and 4; they do not have members of type 1 or 2. Their parent bodies had onion‐shell structures and were internally heated by the decay of 26Al.
Alan E. Rubin
wiley   +1 more source

¹⁶O poor cosmic spherules from near-Earth CY chondrite asteroids. [PDF]

Sci Adv
Van Ginneken M, Goderis S, Genge MJ, Jonker G, Maeda R, Wozniakiewicz PJ, Folco L, Suttle MD, Franchi IA, Zhao X, Yamaguchi A, Decrée S.   +11 more
europepmc   +1 more source

Thermal history of an amoeboid olivine aggregate in the early solar nebula

Meteoritics &Planetary Science, EarlyView.
Abstract Carbonaceous chondrites commonly contain amoeboid olivine aggregates (AOAs). Here, we investigated an AOA in the CR chondrite Y‐793261. This AOA contains an unstable assemblage of forsterite and quartz. We found a rare occurrence of enstatite and quantitatively discuss its formation process.
M. Kimura, N. Imae, M. Komatsu, A. Yamaguchi   +3 more
wiley   +1 more source

Effects of Nanoparticle-Based Activating Flux with Sodium-Silicate Solvent on Activated Gas Tungsten Arc Welded Inconel 718. [PDF]

Materials (Basel)
Balos S, Kljestan N, Dramicanin M, Janjatovic P, Knezevic M.   +4 more
europepmc   +1 more source

VUV and mid‐UV photoabsorption cross sections of thin films of glycine and alanine: Application to their photochemistry in the solar system

Photochemistry and Photobiology, EarlyView.
Thin solid films of pure glycine or alanine (thicknesses ranging from 10 to 700 nm) were prepared on MgF2 windows using a vacuum sublimation/recondensation method. VUV‐UV spectroscopy of these films enabled us to characterize new absorption cross sections for glycine and alanine for VUV‐UV radiations between 120 and 300 nm.
Juliette Pastore, Hervé Cottin, Kafila Saïagh, Jodie Belilla, Fabien Stalport, Nicolas Fray, Nathalie Carrasco   +6 more
wiley   +1 more source

Felsic hydrothermal deposit formation by chalcophile metal concentration through mafic recharge and fluid-mediated sulfide dissolution. [PDF]

Sci Adv
Liu Y, Williams-Jones AE, Hou Z, Bagas L, Jiang S, Wang F, Ji G.   +6 more
europepmc   +1 more source

Optical Properties of Graphite-Iron-Silicate Grain Mixtures [PDF]

Monthly Notices of the Royal Astronomical Society, 1971
N. C. Wickramasinghe, K. Nandy
openaire   +1 more source

Field‐based evaluation of glass cullet as a supplementary sediment source for coastal restoration

Restoration Ecology, EarlyView.
There is an ever‐increasing demand for sand to support projects like beach nourishment and dune restoration, but dredging and mining sand causes environmental damage. Demonstrating the environmental and ecological compatibility of crushed and ground glass known as cullet to support coastal restoration projects could simultaneously divert waste from ...
Lily S. Pfeifer, Charles A. Schutte
wiley   +1 more source