Results 91 to 100 of about 104,611 (276)

3D SR‐μXCT analysis for lithology detection: Application to Ryugu sample A0159

Meteoritics &Planetary Science, EarlyView.
Abstract Extraterrestrial breccia samples are formed through impact‐related processes that combine the fragments of distinct lithologies. As such, they are valuable indicators of the complex formation and evolution history of planetesimals in our solar system.
Léna Jossé, Zélia Dionnet, Alice Aléon‐Toppani, Rosario Brunetto, Andrew King, Emmanuel Gardés, Eva Heripré, Damien Loizeau, Sasha Cryan, Kentaro Hatakeda   +9 more
wiley   +1 more source

Movement of Trace Elements During Residence in the Antarctic Ice: a Laboratory Simulation [PDF]

, 1991
Recent work has determined that differences in the trace element distribution between Antarctic eucrites and non-Antarctic eucrites may be due to weathering during residence in the ice, and samples that demonstrate trace element disturbances do not ...
Strait, Melissa M.
core   +1 more source

Laboratory mid-IR spectra of equilibrated and igneous meteorites. Searching for observables of planetesimal debris

, 2017
Meteorites contain minerals from Solar System asteroids with different properties (like size, presence of water, core formation). We provide new mid-IR transmission spectra of powdered meteorites to obtain templates of how mid-IR spectra of asteroidal ...
de Vries, B. L., Min, M., Skogby, H., Waters, L. B. F. M.   +3 more
core   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

The fall of the Haag (LL4‐6) chondrite breccia—Just 8 years after the nearby fall Stubenberg (LL6)

Meteoritics &Planetary Science, EarlyView.
Abstract On October 24, 2024, an impressive fireball was visible over Austria. After the possible strewn field was calculated, the first sample of the Haag meteorite, with a mass of 8.76 g, was discovered on November 2, 2024, 8 days after the fireball event. Four more samples were found afterward putting the total sample mass at about 151 g.
Addi Bischoff, Markus Patzek, Jean‐Alix Barrat, Stig Bartel, Jasper Berndt, Henner Busemann, Tommaso Di Rocco, Mattias Ek, Manuela A. Fehr, Dieter Heinlein, Daniela Krietsch, Björn Lehnert, Colin Maden, Oscar Marchhart, Martin Martschini, Silke Merchel, Andreas Pack, Andrea Patzer, Marie Pichotta, Maximilian P. Reitze, Philippe Schmitt‐Kopplin, Maria Schönbächler, Leon Thannheiser, Iris Weber, Alexander Wieser, Karl Wimmer   +25 more
wiley   +1 more source

Schreibersite: an effective catalyst in the formose reaction network

New Journal of Physics, 2018
We report on the ability of the meteoritic material schreibersite to catalyze the generation of higher sugars from simple carbohydrates in the formose reaction network.
S Pallmann, J Šteflová (neé Svobodová), M Haas, S Lamour, A Henß, O Trapp   +5 more
doaj   +1 more source

Sulfide–Metal Assemblages on CR2 Chondrule Rims: Products of Nebular Fission–Sulfidization and Parent Body Oxidation–Serpentinization

Meteoritics &Planetary Science, EarlyView.
Abstract We conducted a scanning electron microscopy (SEM) and transmission electron microscopy (TEM) study of sulfide–metal assemblages (SMAs) in minimally to moderately altered CR2 chondrites. The assemblages occur on chondrule rims and consist of kamacite cores rimmed by pyrrhotite.
S. A. Singerling, A. J. Brearley
wiley   +1 more source

The Maribo CM2 meteorite fall - survival of weak material at high entry speed

, 2019
High entry speed (> 25 km/s) and low density (< 2500 kg/m3) are two factors that lower the chance of a meteoroid to drop meteorites. The 26 g carbonaceous (CM2) meteorite Maribo recovered in Denmark in 2009 was delivered by a superbolide observed by ...
Borovicka, Jiri, Popova, Olga, Spurny, Pavel   +2 more
core   +1 more source

The effect of aqueous alteration and metamorphism in the survival of presolar silicate grains in chondrites [PDF]

, 2008
Relatively small amounts (typically between 2-200 parts per million) of presolar grains have been preserved in the matrices of chondritic meteorites.
Bischoff, Bonal, Brearley, Brearley, Chizmadia, Floss, Floss, Grady, Grossman, Huss, Huss, Hutchison, Jewitt, Josep M. Trigo-Rodriguez, Jürgen Blum, Kobayashi, Krot, Lee, Leitner, Marhas, Marhas, Mostefaoui, Nagashima, Nguyen, Ott, Scott, Stadermann, Trigo-Rodríguez, Vollmer, Weisberg, Williams, Zinner   +31 more
core   +2 more sources

Experimental constraints on the origin of metal and carbon in ureilite meteorites

Meteoritics &Planetary Science, EarlyView.
Abstract Ureilites are carbon‐rich ultramafic achondrites that display unique textures, including strips of metal and carbon phases situated along grain boundaries and in fractures. Shock metamorphism observed in ureilites suggests an episode of brittle deformation caused by impact disruption of their parent body.
Nicolas P. Walte, Max Collinet, Cyrena A. Goodrich   +2 more
wiley   +1 more source