Results 81 to 90 of about 64,884 (241)

Terrestrial ages of Antarctic meteorites: Implications for concentration mechanisms [PDF]

Antarctic meteorites differ from meteorites fallen in other places in their mean terrestrial ages. Boeckl estimated the terrestrial half-life for the disintegration of stone meteorites by weathering under the climatic conditions of the Western United ...
Schultz, L.
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

Data-Driven UPLC-Orbitrap MS Analysis in Astrochemistry

Life, 2019
Meteorites have been found to be rich and highly diverse in organic compounds. Next to previous direct infusion high resolution mass spectrometry experiments (DI-HR-MS), we present here data-driven strategies to evaluate UPLC-Orbitrap MS analyses.
Alexander Ruf, Pauline Poinot, Claude Geffroy, Louis Le Sergeant d’Hendecourt, Gregoire Danger   +4 more
doaj   +1 more source

60Fe-60Ni chronology of core formation in Mars

, 2014
The timescales of accretion, core formation, and magmatic differentiation in planetary bodies can be constrained using extinct radionuclide systems. Experiments have shown that Ni becomes more siderophile with decreasing pressure, which is reflected in ...
Dauphas, Nicolas, Tang, Haolan
core   +1 more source

Lunar meteorite regolith breccias: an in situ study of impact melt composition using LA-ICP-MS with implications for the composition of the lunar crust [PDF]

, 2010
Dar al Gani (DaG) 400, Meteorite Hills (MET) 01210, Pecora Escarpment (PCA) 02007, and MacAlpine Hills (MAC) 88104/88105 are lunar regolith breccia meteorites that provide sampling of the lunar surface from regions of the Moon that were not visited by ...
Anders, Antonenko, Arai, Arai, Arai, Arvidson, Basaltic Volcanism Study Project, Bland, Bukovanska, Bussey, Cahill, Campbell, Cohen, Cohen, Crawford, Crozaz, Day, Delano, Deutsch, Eugster, Fernandes, Floss, Goodrich, Goodrich, Haloda, Haskin, Hawke, Hawke, Head, Head, Hörz, Jolliff, Jolliff, Jolliff, Jolliff, Jolliff, Joy, Joy, Koeberl, Koeberl, Korotev, Korotev, Korotev, Korotev, Korotev, Korotev, Korotev, Korotev, Korotev, Lawrence, Lawrence, Levine, Lindstrom, Lindstrom, Liu, Longhi, Lucey, Lucey, Lucey, McKay, McKay, McKinley, Neal, Neal, Nishiizumi, Norman, Nyquist, Ohtake, Palme, Papike, Papike, Pearce, Pieters, Prettyman, Reimold, Rubin, Russell, Ryder, Ryder, Schnare, Shearer, Shearer, Sokol, Spudis, Spudis, Spudis, Stöffler, Swinyard, Takeda, Taylor, Taylor, Terada, Terada, Vaniman, Warren, Warren, Warren, Warren, Warren, Wasson, Wieczorek, Wieczorek, Zipfel, Zolensky   +103 more
core   +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

Multi-satellite Universat-SOCRAT mission for monitoring technogenic and natural hazards

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
The natural and “man-made” space environment generates serious risks for the implementation of space missions, both automatic and human. The main natural and technogenic risk factors that limit or pose a threat to the implementation of space-based ...
V. A. Sadovnichiy, M. I. Panasyuk, V. M. Lipunov, A. A. Belov, V. V. Bogomolov, G. K. Garipov, E. S. Gorbovskoi, A. F. Iyudin, V. V. Kalegaev, P. A. Klimov, V. G. Kornilov, S. K. Mit, V. I. Osedlo, V. L. Petrov, M. V. Podzolko, E. P. Popova, I. A. Rubinshtein, S. I. Svertilov, V. I. Tulupov, A. S. Chepurnov, I. V. Yashin   +20 more
doaj   +1 more source

A mutli-technique search for the most primitive CO chondrites [PDF]

, 2018
As part of a study to identify the most primitive COs and to look for weakly altered CMs amongst the COs, we have conducted a multi-technique study of 16 Antarctic meteorites that had been classified as primitive COs. For this study, we have determined: (
Alexander, Alexander, Alexander, Alexander, Alexander, Alexander, Alexander, Alexander, Bao, Beaudoin, Bland, Bonal, Brearley, Burton, Busemann, C.M.O'D. Alexander, Chizmadia, Choi, Clayton, Cody, Cressey, Davidson, Davidson, Doyle, Dunn, Greenwood, Greenwood, Greenwood, Greenwood, Grossman, Hallis, Hewins, Howard, Howard, Howard, I.A. Franchi, J.M. Gibson, Jarosewich, K.T. Howard, King, Le Guillou, Lee, Madsen, Menzies, Miller, Nguyen, Nguyen, Nguyen, Nittler, Quirico, R. Bowden, R.C. Greenwood, Sakamoto, Savin, Schrader, Schrader, Schultz, Seto, Sheppard, Smith, Starkey, Tenner, Ushikubo, Ushikubo, Vollmer, Yan, Young, Young, Zheng   +68 more
core   +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

Relationships among basaltic lunar meteorites [PDF]

During the past two years four meteorites of dominantly mare basalt composition were identified in the Japanese and US Antarctic collections. Basalts represent a much higher proportion of the lunar meteorites than is expected from photogeologic mapping ...
Lindstrom, Marilyn M.
core   +1 more source