Results 31 to 40 of about 11,238 (241)
The Okhansk Meteorite: Specifics of Composition, Structure, and Genesis [PDF]
Учёные записки Казанского университета: Серия Естественные науки, 2016 The Okhansk meteorite fell on August 18, 1887 near the village of Tabor, about 15 km away from the town of Okhansk in Perm province and weighed 186.5 kg (the total weight of collected fragments, according to P.I. Krotov, was more than 245 kg).
A.I. Bakhtin +3 more
doaj
Igneous Rim Accretion on Chondrules in Low-velocity Shock Waves
The Astrophysical Journal, 2023 Shock-wave heating is a leading candidate for the mechanisms of chondrule formation. This mechanism forms chondrules when the shock velocity is in a certain range.
Yuji Matsumoto, Sota Arakawa
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Mössbauer Study of Weathering Products in Meteorites from the Atacama Desert
MagnetochemistryDuring their stay at the surface of the Earth, meteorites undergo terrestrial weathering. In particular, the iron-nickel alloys and iron sulfides that are abundant in many types of meteorites transform into oxides and oxihydroxides (magnetite, maghemite,
Andrew Pyataev +4 more
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Reduced and unstratified crust in CV chondrite parent body
Nature Communications, 2017 Meteorites may unlock the history of the early solar system. Here, the authors find, through Ca-Fe-rich secondary phases, that the distinction between reduced and oxidized CV chondrites is invalid; therefore, CV3 chondrites are asteroid fragments that ...
Clément Ganino, Guy Libourel
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Eos, Transactions American Geophysical Union, 1971 Because of their numerical dominance among meteorite falls, their great age, and their primitive (i.e., quasisolar) compositions, the chondrites are central to discussions of the origin and early history of the solar system. The bibliography includes most American contributions m this field from 1967 to 1970, and this report attempts to summarize our ...
openaire +1 more source
Noble gases in enstatite chondrites II: The trapped component
, 2002 The trapped noble gas record of 57 enstatite chondrites (E chondrites) has been investigated. Basically, two different gas patterns have been identified dependent on the petrologic type.
Patzer, A., Schultz, L.
core +2 more sources
“CY1” Chondrites Produced by Impact Dehydration of the CI Chondrite Parent Body
The Astrophysical Journal LettersThe recently proposed Yamato-type (CY) chondrites share significant similarities with CI chondrites and Ryugu. We present major and trace elemental, Re–Os, and mass-independent Ti, Cr, and Fe isotope data for seven CY chondrites. The elemental data along
Ke Zhu +6 more
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Geological Journal, EarlyView.The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang +6 more
wiley +1 more source
Spectral Reflectance Properties (0.3–2.5 μm) of LL Ordinary Chondrites
The Astrophysical Journal Supplement SeriesSpectral characterization of asteroids relies on meteorite spectral calibration to constrain their surface mineralogy. We have conducted a comprehensive spectroscopic study of LL chondrites to shed light on the factors that control their reflectance ...
Pengyue Wang +5 more
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Geological Journal, EarlyView.Early zircon saturation and crystallisation occur in mafic (52–54 wt.% SiO2) lavas at Tengchong volcanic field. These early formed zircons with high δ18O (6.6‰–7.9‰) indicates mantle enrichment by subducted supracrustal materials. ABSTRACT Late Pleistocene (< 0.2 Ma) mafic and evolved volcanic rocks occur in northern Tengchong Volcanic Field, SE ...
Lizhu Wang, Haibo Zou
wiley +1 more source