Showing 201 - 220 results of 910 for search '"meteorite"', query time: 0.12s Refine Results
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    Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements by Kristina G. Sukhanova, Anton B. Kuznetsov, Olga L. Galankina

    Published 2022-07-01
    “…The olivine of the chondrules center of the Saratov meteorite differs from the olivine of the chondrules rims and meteorite matrix by the increased values of the Yb/La ratio. …”
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    Article
  3. 203

    Granular titanite from the Roter Kamm crater in Namibia: Product of regional metamorphism, not meteorite impact by Aaron J. Cavosie, Christopher J. Spencer, Noreen Evans, Kai Rankenburg, Robert J. Thomas, Paul H. Macey

    Published 2022-05-01
    “…Accessory minerals with so-called granular texture have risen in importance as geochronological tools for U-Pb dating of meteorite impact events. Grain-scale recrystallization, typically triggered by a combination of high-strain deformation and post-impact heating, can create a polycrystalline microstructure consisting of neoblasts that expel radiogenic Pb, which are thus ideal for isotopic dating. …”
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    Article
  4. 204

    High-spatial resolution functional chemistry of nitrogen compounds in the observed UK meteorite fall Winchcombe by Christian Vollmer, Demie Kepaptsoglou, Jan Leitner, Aleksander B. Mosberg, Khalil El Hajraoui, Ashley J. King, Charlotte L. Bays, Paul F. Schofield, Tohru Araki, Quentin M. Ramasse

    Published 2024-01-01
    “…We report here on the identification of nitrogen-containing compounds such as amino acids and N-heterocycles within the recent observed meteorite fall Winchcombe by high-spatial resolution spectroscopy techniques. …”
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    Article
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    Deuterium Isotope Fractionation of Polycyclic Aromatic Hydrocarbons in Meteorites as an Indicator of Interstellar/Protosolar Processing History by Heather V. Graham, Jamie E. Elsila, Jason P. Dworkin, Scott A. Sandford, Jose C. Aponte

    Published 2022-09-01
    “…Deuterium enrichment in meteoritic organics could be a residual signal of synthetic reactions occurring in the cold interstellar medium or an indicator of hydrothermal parent-body reactions. δD values have been measured in grains and bulk samples for a wide range of meteorites; however, these reservoirs are highly variable and may have experienced fractionation during thermal and/or aqueous alteration. …”
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    Large thallium isotopic variations in iron meteorites and evidence for lead-205 in the early solar system by Nielsen, S, Rehkamper, M, Halliday, A

    Published 2006
    “…However, despite numerous attempts, Tl isotopic measurements of meteorites have been unable to demonstrate convincingly its former presence. …”
    Journal article
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    Experimental simulation of meteorite ablation during earth entry using a plasma wind tunnel by Loehle, S, Zander, F, Hermann, T, Eberhart, M, Meindl, A, Oefele, R, Vaubaillon, J, Colas, F, Vernazza, P, Drouard, A, Gattacceca, J

    Published 2017
    “…This is the first time that comprehensive testing of various meteorite fragments under the same flow condition was conducted. …”
    Journal article
  14. 214

    Nickel isotopes in iron meteorites-nucleosynthetic anomalies in sulphides with no effects in metals and no trace of Fe-60 by Quitte, G, Meier, M, Latkoczy, C, Halliday, A, Gunther, D

    Published 2006
    “…Based on our sampling they seem more prevalent in, but not exclusive to, non-magmatic iron meteorites and could reflect admixing of less than 0.4 ppm pure s-process component into "normal" Ni on meteorite parent bodies. …”
    Journal article
  15. 215

    Fe isotope fractionation in iron meteorites: New insights into metal-sulphide segregation and planetary accretion by Williams, H, Markowski, A, Quitte, G, Halliday, A, Teutsch, N, Levasseur, S

    Published 2006
    “…Magmatic iron meteorites are considered to be remnants of the metallic cores of differentiated asteroids, and may be used as analogues of planetary core formation. …”
    Journal article
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    Application of MC-ICPMS to the precise determination of tellurium isotope compositions in chondrites, iron meteorites and sulfides by Fehr, M, Rehkamper, M, Halliday, A

    Published 2004
    “…The methods are suitable for the analysis of stony and iron meteorites as well as sulfide mineral separates, such that they can be applied to search for Te isotope anomalies in various solar system materials. …”
    Journal article
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    Batuan impak meteorit: bukti penggunaan bahan mentah bagi masyarakat Paleolitik Pleistosen Pertengahan by Nor Khairunnisa Talib, Mokhtar Saidin, Jeffrey Abdullah

    Published 2016
    “…Berdasarkan analisis litik, didapati kesemua bahan mentah yang digunakan sebagai artifak batu adalah daripada batuan impak meteorit.Batuan tersebut adalah terhasil daripada hentaman meteorit yang berlaku sekitar 1.83 juta tahun dahulu iaitu metakuarza, metakuarzit, metasedimen kerijangan dan suevit. …”
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    Article
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    Geophysical Modelling of Meteorite Impact: Comparison of Mahsuri Ring Langkawi & Bukit Bunuh, Perak, Malaysia by Hardianshah Saleh, A.R. Samsudin, U. Hamzah, M.H. Ariffin, Z. Sulaiman, M.A.A.M. Jelani

    Published 2020
    “…The identification and discovery of meteorite impact structures are based on several observation on the field such as geomorphology, rock textures, mineral deformation, and stratigraphic relations. …”
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    Proceedings
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