Results 1 to 10 of about 6,413 (223)

Microstructural modeling of the fragmentation of ordinary chondrites [PDF]

Scientific Reports
The fracture behavior of rocks on asteroids offers insights into the evolution and dynamics of their boulders and regolith while providing critical data for developing hazard mitigation strategies.
Mostafa M. A. Mohamed, Mohamed H. Hamza, Laurence A. J. Garvie, Desireé Cotto-Figueroa, Erik Asphaug, Aditi Chattopadhyay   +5 more
doaj   +2 more sources

Impact-driven oxidation of organics explains chondrite shock metamorphism dichotomy [PDF]

Nature Communications
Shocked meteorites can be used to probe the dynamics of the early Solar system. Carbonaceous chondrites are less shocked than ordinary chondrites, regardless of the degree of aqueous alteration.
Kosuke Kurosawa, Gareth S. Collins, Thomas M. Davison, Takaya Okamoto, Ko Ishibashi, Takafumi Matsui   +5 more
doaj   +2 more sources

Chromites in ordinary-chondrite fusion crusts [PDF]

European Journal of Mineralogy
Chromites from ordinary chondrites of groups H4, H5, LL5, LL6, L3.6 and L6 were studied and compared to an H5 ordinary chondrite processed to form a synthetic fusion crust.
M. Bellesi, G. Pratesi, A. Di Michele, S. Nazzareni, L. Pittarello, L. Pittarello, S. Goderis, C. Santini, G. Giuli   +8 more
doaj   +5 more sources

Grain Size Effects on Visible and Near-infrared (0.35–2.5 μm) Laboratory Spectra of Ordinary Chondrite and HED Meteorites

The Planetary Science Journal, 2023
Remote spectral characterization of near-Earth asteroids (NEAs) relies on laboratory spectral calibration to constrain their surface composition, including mineral chemistry and relative mineral abundances.
Bryn Bowen, Vishnu Reddy, Mario De Florio, Theodore Kareta, Neil Pearson, Roberto Furfaro, Benjamin Sharkey, Allison McGraw, David Cantillo, Juan A. Sanchez, Adam Battle   +10 more
doaj   +1 more source

EVALUATION OF THERMAL METAMORPHISM TEMPERATURE OF EQUILIBRATED ORDINARY CHONDRITES

Геодинамика и тектонофизика, 2022
The article provides an evaluation of thermal metamorphism temperatures on chondrite parent bodies using an olivine-Сr spinel geothermometer. To calculate temperatures, the results of EPMA analysis of the major and trace elements in olivine and Cr spinel
К. G. Sukhanova, A. B. Kuznetsov, S. G. Skublov, O. L. Galankina   +3 more
doaj   +1 more source

Unique evidence of fluid alteration in the Kakowa (L6) ordinary chondrite

Scientific Reports, 2022
Meteorites preserve evidence of processes on their parent bodies, including alteration, metamorphism, and shock events. Here we show that the Kakowa (L6) ordinary chondrite (OC) preserves both shock-melt veins and pockets of detrital grains from a ...
I. P. Baziotis, C. Ma, Y. Guan, L. Ferrière, S. Xydous, J. Hu, M. A. Kipp, F. L. H. Tissot, P. D. Asimow   +8 more
doaj   +1 more source

Aqueous alteration without initial water: possibility of organic-induced hydration of anhydrous silicates in meteorite parent bodies

Earth, Planets and Space, 2021
Early evolution of Solar System small bodies proceeded through interactions of mineral and water. Melting of water ice accreted with mineral particles to the parent body results in the formation of secondary minerals, the so-called aqueous alteration ...
Naoki Hirakawa, Yoko Kebukawa, Yoshihiro Furukawa, Masashi Kondo, Hideyuki Nakano, Kensei Kobayashi   +5 more
doaj   +1 more source

Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements

Записки Горного института, 2022
The paper discusses the geochemistry of major (EPMA) and trace (SIMS) elements in olivine of porphyritic, nonporphyritic chondrules, and the matrix of equilibrated ordinary chondrite Saratov (L4).
Kristina G. Sukhanova, Anton B. Kuznetsov, Olga L. Galankina   +2 more
doaj   +1 more source

Mineralogical Characterization and Phase Angle Study of Two Binary Near-Earth Asteroids, Potential Targets for NASA’s Janus Mission

The Planetary Science Journal, 2023
Ground-based characterization of spacecraft targets prior to mission operations is critical to properly plan and execute measurements. Understanding surface properties, such as mineralogical composition and phase curves (expected brightness at different ...
Lucille Le Corre, Juan A. Sanchez, Vishnu Reddy, Adam Battle, David C. Cantillo, Benjamin Sharkey, Robert Jedicke, Daniel J. Scheeres   +7 more
doaj   +1 more source

Developing Prototype Simulants for Surface Materials and Morphology of Near Earth Asteroid 2016 HO3

Space: Science & Technology, 2021
There are a variety of applications for asteroid simulants in asteroid studies for science advances as well as technology maturation. For specific purpose, it usually requires purpose-specialized simulant.
Xiaojing Zhang, Yuechen Luo, Yuan Xiao, Deyun Liu, Fan Guo, Qian Guo   +5 more
doaj   +1 more source