Results 31 to 40 of about 9,098 (128)

Investigation and reclassification of four mesosiderites—Implications for their formation

Meteoritics &Planetary Science, EarlyView.
Abstract Mesosiderites are rare, differentiated meteorites, so‐called stony‐iron meteorites—they are impact breccias composed of an unusual mix of crustal basalt and pyroxenite, core‐derived metal, but no mantle materials. This odd mixture makes their origin enigmatic and has inspired many different formation theories over the last several decades ...
Gabriel Zachén, Carl Alwmark, Sanna Alwmark, Ludovic Ferrière, Roger H. Hewins   +4 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

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

Optical Mineralogy in a Modern Earth Sciences Curriculum [PDF]

, 2007
Provides pedagogical insight concerning the skill of studying minerals The resource being annotated is: http://www.dlese.org/dds/catalog_SERC-NAGT-000-000-000-651 ...
Lamont-Doherty Earth Observatory, Columbia University
core  

The Spitzer Spectroscopic Survey of S-type Stars [PDF]

, 2012
S-type AGB stars are thought to be in the transitional phase between M-type and C-type AGB stars. Because of their peculiar chemical composition, one may expect a strong influence of the stellar C/O ratio on the molecular chemistry and the mineralogy of ...
A. A. Zijlstra, Acke, Allamandola, Andersen, B. Acke, Begemann, Begemann, Blommaert, Brown, Cami, Cardelli, Carpenter, Cau, Chan, Cherchneff, Cherchneff, Chiar, D. Barry, D. Ladjal, DePew, Dijkstra, Drimmel, F. van Wyk, Fabian, Ferrarotti, Ferrarotti, G. C. Sloan, Gielen, Goebel, Groenewegen, Grossman, Guandalini, Gustafsson, H. Van Winckel, Henning, Heras, Herwig, Higdon, Hoefner, Hony, Hony, Höfner, Höfner, Iben, J. A. D. L. Blommaert, J. Cami, J. Menzies, J. Th. van Loon, Jaeger, Jura, Justtanont, K. Exter, K. Smolders, Keller, L. Decin, Lagadec, Lebzelter, Leisenring, Lorenz-Martins, M. A. T. Groenewegen, M. Desmet, M. Feast, M. Matsuura, Marshall, Martin, McCabe, McDonald, Mutschke, Mutschke, N. Cox, Onaka, P. de Cat, P. Degroote, P. Neyskens, Peeters, Pendleton, Piccirillo, Pitman, Pojmanski, Pojmański, Posch, Posch, R. Sahai, R. Østensen, Raskin, S. Bloemen, S. Hony, S. Saesen, S. Uttenthaler, S. Van Eck, Schutte, Sloan, Sloan, Sloan, Sloan, Sloan, Smith, Smolders, Stencel, T. Verhoelst, Tielens, Treffers, Uttenthaler, Van Eck, Van Eck, van Loon, Vardya, Volk, W. Zima, Woitke, Woźniak, Zechmeister, Zhukovska, Zijlstra   +113 more
core   +3 more sources

Parent body thermal metamorphism of enstatite chondrites: Disentangling the effects of shock melting

Meteoritics &Planetary Science, EarlyView.
Abstract Enstatite chondrites (ECs) formed on at least two parent bodies, EH and EL. After the accretion of the EC parent bodies, EC material was subjected to varying degrees of parent body thermal metamorphism (measured by petrologic types 3–6), due to heat released by radioactive isotope decay.
Peter Mc Ardle, Rhian H. Jones, Patricia L. Clay, Romain Tartèse, Ray Burgess, Brian O'Driscoll, Eric W.G. Hellebrand, Jonathan Fellowes, Arthur Goodwin, Lewis Hughes   +9 more
wiley   +1 more source

Mineral reconnaissance at the Highland boundary with special reference to the Loch Lomond and Aberfoyle areas [PDF]

, 1983
Serpentinite bodies at the Highland Boundary in the Loch Lomond and Aberfoyle areas are extensively altered to magnesite-quartz and ferroan-dolomite-quartz rocks. Silicification was probably initiated before conversion to carbonate.
Fortey, N.J., Grout, A., Henderson, W.G., Johnson, C.E.   +3 more
core  

Kindberg, the fifth meteorite fall in Austria: A weakly shocked L6 chondrite breccia with high‐pressure phases

Meteoritics &Planetary Science, EarlyView.
Abstract A bright fireball was seen at 4:46 a.m. CET on November 19, 2020, over Austria, and also eye witnessed in Italy and Germany. The resulting Kindberg meteorite was the fifth well‐approved meteorite fall in Austria, and all rocks represent ordinary chondrites.
Addi Bischoff, Maximilian P. Reitze, Julia Roszjar, Markus Patzek, Jean‐Alix Barrat, Jasper Berndt, Tommaso Di Rocco, Andreas Pack, Iris Weber   +8 more
wiley   +1 more source

Textural and geochemical diversity of impact melt rock clasts in Apollo 16 sample 67015: Implications for the provenance of impact ejecta in the lunar highlands

Meteoritics &Planetary Science, EarlyView.
Abstract Apollo sample 67015 has been classified as a fragmental breccia comprised of highlands‐type clasts and is proposed to be the most complex Apollo 16 sample. 67015 is dominated by impact melt rock clasts that display a variety of textures, which have been previously interpreted to be indicative of multiple impact events.
Tara S. Hayden, Gordon R. Osinski
wiley   +1 more source

Properties of Protostars in the Elephant Trunk in the Globule IC 1396A [PDF]

, 2009
Extremely red objects, identified in the early Spitzer Space Telescope observations of the bright-rimmed globule IC 1396A and photometrically classified as Class I protostars and Class II T Tauri stars based on their mid-infrared (mid-IR) colors, were ...
Boogert, Adwin, Cambrésy, Laurent, Faied, Dohy, Jarrett, Thomas H., Morris, Patrick, Palla, Francesco, Reach, William T., Rho, Jeonghee, Tappe, Achim, Valdettaro, Riccardo   +9 more
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