Results 101 to 110 of about 33,638 (237)
Pułtusk H5 Chondrite—A Compilation of Chemical, Physical, and Thermophysical Data
GeosciencesThe Pułtusk meteorite, classified as an H5 ordinary chondrite, is one of the best documented Polish falls, yet some important data on its physical and thermophysical properties remain limited.
Katarzyna Łuszczek, Radosław A. Wach
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The mineralogy and alteration history of the Yamato-type (CY) carbonaceous chondrites
, 2023 Martin D. Suttle +9 more
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Altitude Profile and Isotopic Composition for N2 From Pioneer Venus Mass Spectra
Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.Abstract We report the highest resolution altitude profile and isotopic composition for N2 at Venus, to date. These results were obtained through re‐analysis of data acquired by the Pioneer Venus Large Probe Neutral Mass Spectrometer (LNMS). The N2 is non‐uniformly mixed across the clouds and sub‐cloud atmosphere (∼59–15 km) yet uniformly mixed across ...
R. Mogul, S. S. Limaye, M. J. Way
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Rapid Communications in Mass Spectrometry, Volume 39, Issue 23, 15 December 2025.ABSTRACT Background Obtaining isotopic data on soluble organic compounds, such as amino acids, in extraterrestrial samples is crucial for understanding their origins, prebiotic chemistry, and potential contamination. Conventional GC‐IRMS requires grams of material to measure isotopic compositions, limiting the analysis of low‐concentration organics in ...
O. M. McIntosh +9 more
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Detection of incipient aqueous alteration in carbonaceous chondrites
, 2022 Lisa Krämer Ruggiu +12 more
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Antarctic Intermediate Water Variability in the South Atlantic Over the Last 600,000 years
Paleoceanography and Paleoclimatology, Volume 40, Issue 12, December 2025.Abstract Despite its importance as a key component of the Atlantic Meridional Overturning Circulation, the long‐term variability of Antarctic Intermediate Water (AAIW) remains poorly constrained due to the lack of adequate proxy records. To address this, we present the longest reconstruction of AAIW variability in the South Atlantic using authigenic ...
Oluwaseun Soaga +5 more
wiley +1 more source
The Planetary Science JournalPrimitive meteorite groups such as the Vigarano, Mighei, and Karoonda carbonaceous chondrites have enigmatic patterns of elemental abundances, with moderately volatile elements—those that transition from vapor to condensate between ∼400 and ∼900 K ...
Jeremy W. Boyce +3 more
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Oxychlorine Species on Mars: A Review
Reviews of Geophysics, Volume 63, Issue 4, December 2025.Abstract Oxychlorine species (mainly perchlorate and chlorate) have been identified at multiple locations on the surface of Mars by both orbiter and in situ rovers. They have also been found in martian meteorites. Cl‐isotopes in meteoritic minerals suggest that an oxychlorine cycle has been operating on the martian surface for the last ∼4 billion years.
Kaushik Mitra
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Nano-FTIR Investigation of the CM Chondrite Allan Hills 83100 [PDF]
, 2022 Jordan Young +7 more
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Restoring the Missing Late Cretaceous Arc of Iran
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.Abstract Persistent arc magmatism archives fluid transport and mantle partial melting in subduction zones. However, arc magmatism often exhibits different magmatic records along the strike, as seen in the Tethyan orogenic belt. During Neo‐Tethys subduction under Iran, there was pulsed arc magmatism with Middle Jurassic and Eocene magmatic flare‐ups ...
Yiyang Lei +10 more
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