Meteoritics & Planetary Science最新文献

{"title":"Metallic messengers from the cosmos: Rare (Al,Cu)-bearing meteorites from the Project Stardust collection","authors":"Luca Bindi,&nbsp;Jon Larsen,&nbsp;Jan B. Kihle,&nbsp;Guangming Cheng,&nbsp;Jinping Hu,&nbsp;Nan Yao,&nbsp;Chi Ma,&nbsp;Yunbin Guan,&nbsp;Paul D. Asimow,&nbsp;Paul J. Steinhardt","doi":"10.1111/maps.14377","DOIUrl":"https://doi.org/10.1111/maps.14377","url":null,"abstract":"<p>We report the discovery of (Al,Cu)-bearing metallic alloys in two micrometeorites found in the Project Stardust collection gathered from urban rooftop environments in Norway. Most of the alloys are the same as those found in the Khatyrka meteorite and other micrometeorites, though one has a composition that has not been reported previously. Oxygen isotope ratio measurements using secondary ion mass spectrometry show that the Project Stardust samples reported here, like all earlier examples of natural (Al,Cu)-bearing alloys, contain material of chondritic affinity.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"60 7","pages":"1609-1620"},"PeriodicalIF":2.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14377","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Origin of gabbroic shergottite Northwest Africa 6963 from an ~180-million-year-old flood basalt province on Mars","authors":"James M. D. Day,&nbsp;Hunter R. Edwards,&nbsp;Kim Tait,&nbsp;Carl B. Agee","doi":"10.1111/maps.14378","DOIUrl":"https://doi.org/10.1111/maps.14378","url":null,"abstract":"<p>To understand chemical variability within individual martian meteorites, we report major, minor, trace, and highly siderophile element abundances, as well as ¹⁸⁷Re-¹⁸⁷Os, for four separate rock fragments of gabbroic shergottite Northwest Africa (NWA) 6963. The compositions of these aliquots are consistent with data for NWA 6963 from Filiberto et al. (2018). Data reported for NWA 6963 in Day et al. (2018) and Tait and Day (2018) should no longer be used due to doubt in provenance of the sample fragment used in those studies. Genuine fragments of NWA 6963 show significant variability in elements due to different modal proportions of minerals. Terrestrial weathering effects appear to be most pronounced for Ba and Pb. The age and composition of NWA 6963 indicate that it may be related to enriched basaltic shergottites and some olivine–phyric and poikilitic shergottites that are referred to here as the “enriched shergottite group.” The ¹⁸⁷Re-¹⁸⁷Os systematics of the enriched shergottite group all conform to generation at ~180 million years from the same or similar mantle sources with long-term Re/Os enrichment on Mars. They show coherent fractional crystallization trends in plots of compatible elements with the possibility for impact-contaminated regolith assimilation in NWA 6963. The enriched shergottite group may represent magmatism akin to terrestrial continental flood basalt provinces. Entrainment of incompatible trace element enriched upper mantle in an otherwise deeply-derived incompatible trace element depleted mantle plume head in Mars at 180 million years ago may explain the similar crystallization ages of both enriched shergottites and some intermediate shergottites.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"60 7","pages":"1621-1632"},"PeriodicalIF":2.2,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Meteoritical Bulletin, No. 113","authors":"Jérôme Gattacceca,&nbsp;Francis M. McCubbin,&nbsp;Jeffrey N. Grossman,&nbsp;Devin L. Schrader,&nbsp;Camille Cartier,&nbsp;Guy Consolmagno,&nbsp;Cyrena Goodrich,&nbsp;Ansgar Greshake,&nbsp;Juliane Gross,&nbsp;Katherine Helen Joy,&nbsp;Bingkui Miao,&nbsp;Bidong Zhang","doi":"10.1111/maps.14374","DOIUrl":"https://doi.org/10.1111/maps.14374","url":null,"abstract":"<p>Meteoritical Bulletin 113 contains the 3646 meteorites approved by the Nomenclature Committee of the Meteoritical Society in 2024. It includes 17 falls, 2964 ordinary chondrites, 218 HED, 158 carbonaceous chondrites (including 7 ungrouped), 59 lunar meteorites, 38 iron meteorites (9 ungrouped), 30 ureilites, 31 primitive achondrites (3 ungrouped), 28 mesosiderites, 24 enstatite chondrites, 21 martian meteorites, 24 ungrouped stony achondrites, 20 Rumuruti chondrites, 17 pallasites, 8 angrites, 5 enstatite achondrites (one ungrouped), and 1 ungrouped chondrite. Of the meteorites approved in 2024, 1250 were collected in Antarctica, 1102 in Africa, 689 in Asia, 575 in South America, 17 in North America, 11 in Europe, and 2 in Oceania.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"60 7","pages":"1587-1591"},"PeriodicalIF":2.2,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14374","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simulating evaporative wet and dry cycles in Gale crater, Mars using thermochemical modeling techniques","authors":"D. Das,&nbsp;S. M. R. Turner,&nbsp;S. P. Schwenzer,&nbsp;P. J. Gasda,&nbsp;J. Palandri,&nbsp;K. Berlo,&nbsp;R. J. Leveille,&nbsp;L. Crossey,&nbsp;B. M. Tutolo,&nbsp;S. Clegg,&nbsp;E. B. Hughes,&nbsp;N. L. Lanza,&nbsp;O. Gasnault","doi":"10.1111/maps.14375","DOIUrl":"https://doi.org/10.1111/maps.14375","url":null,"abstract":"<p>The aim of this work is to provide a model-backed hypothesis for the formation of evaporites—sulfates, borates—in Gale crater using thermochemical modeling to determine constraints on their formation. We test the hypothesis that primary evaporites required multiple wet–dry cycles to form, akin to how evaporite assemblages form on Earth. Starting with a basalt-equilibrated Mars fluid, Mars-relevant concentrations of B and Li were added, and then equilibrated with Gale lacustrine bedrock. We simulated the cycles of evaporation followed by groundwater recharge/dilution to establish an approximate minimum number of wet–dry cycles required to form primary evaporites. We determine that a minimum of 250 wet–dry cycles may be required to start forming primary evaporites that consist of borates and Ca-sulfates. We estimate that ~14,250 annual cycles (~25.6 k Earth years) of wet and dry periods may form primary borates and Ca-sulfates in Gale crater. These primary evaporites could have been remobilized during secondary diagenesis to form the veins that the Curiosity rover observes in Gale crater. No Li salts form after 14,250 cycles modeled for the Gale-relevant scenario (approximately 10⁶ cycles would be needed) which implies Li may be leftover in a groundwater brine after the time of the lake. No major deposits of borates are observed to date in Gale crater which also implies that B may be leftover in the subsequent groundwater brine that formed after evaporites were remobilized into Ca-sulfate veins.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"60 8","pages":"1704-1720"},"PeriodicalIF":2.4,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14375","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pairing relationships of howardites, eucrites and diogenites (HED) from the Miller Range ice fields, Antarctica","authors":"Kees C. Welten,&nbsp;Marc W. Caffee,&nbsp;Kevin Righter,&nbsp;Ralph P. Harvey,&nbsp;John Schutt,&nbsp;James M. Karner","doi":"10.1111/maps.14376","DOIUrl":"https://doi.org/10.1111/maps.14376","url":null,"abstract":"<p>We reevaluated pairing relationships among 56 Antarctic howardites, eucrites, and diogenites (HED) from the Miller Range ice fields (MIL) based on new measurements of cosmogenic radionuclides and bulk composition of 28 HED samples and one HED-related dunite. These measurements were combined with petrographic examinations and find locations of the majority of the HED samples at MIL. During these studies, we reclassified 1 howardite, MIL 07665, as a brecciated diogenite and eight howardites as brecciated eucrites. We conclude that 18 of the 23 diogenites belong to a single large pairing group of brecciated diogenites. This pairing group includes at least seven samples with bulk compositions that indicate they contain 10%–25% of eucritic material, so technically the meteorites of this pairing group cross the boundary between diogenites and howardites. We also identified several smaller pairing groups (of 2–5 members each) among the eucrites and two paired samples among the howardites. The pairing relationships among the Miller Range eucrites are not fully resolved yet, as the collection contains many small specimens (&lt;10 g) that were not included in this study. Altogether, we conclude that the 56 HED meteorites at Miller Range represent between 19 and 26 individual falls.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"60 7","pages":"1592-1608"},"PeriodicalIF":2.2,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14376","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental simulations of space weathering on pentlandite","authors":"L. C. Chaves,&nbsp;M. S. Thompson,&nbsp;C. A. Dukes,&nbsp;M. J. Loeffler,&nbsp;M. F. Martinez-Motta,&nbsp;H. Vannier,&nbsp;B. H. N. Horgan,&nbsp;N. Smith,&nbsp;K. Ardrey","doi":"10.1111/maps.14371","DOIUrl":"https://doi.org/10.1111/maps.14371","url":null,"abstract":"<p>Pentlandite (Fe, Ni)₉S₈ is an important accessory mineral on asteroidal surfaces. It has been identified in returned regolith samples from asteroids Itokawa, Ryugu, and Bennu. Currently, systematic studies to understand the response of this mineral phase under space weathering conditions are lacking. In this work, we performed pulsed laser irradiation to simulate micrometeoroid impacts, and ion irradiation with 1 keV H⁺ and 4 keV He⁺ to simulate solar wind exposure for pentlandite. To understand the chemical, microstructural, and spectral alterations resulting from simulated space weathering, we conducted X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, and reflectance spectroscopy across the visible to near-infrared wavelengths. Our results reveal S depletion and a change in the Fe:Ni ratio at the sample surface with continuing ion irradiation. Ion irradiation also created compositionally distinct rims in the pentlandite samples, while laser irradiation produced a surface melt. Additionally, we identified hillocks protruding from the pentlandite rim after He⁺ irradiation. Our findings also show that laser and H⁺-irradiation cause the sample to brighten, while He⁺ ion irradiation causes darkening. The change in spectral slope for samples irradiated with the laser and He⁺ is minimal, while H⁺ causes the sample to redden slightly. This work will enable the identification of space weathering signatures on pentlandite grains present in the recently returned samples from asteroids Ryugu and Bennu.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"60 7","pages":"1555-1572"},"PeriodicalIF":2.2,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14371","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of iron meteorites by scanning electron microscopy, X-ray diffraction, magnetization measurements, and Mössbauer spectroscopy: Kayakent IIIAB","authors":"M. V. Goryunov,&nbsp;G. Varga,&nbsp;Z. Dankházi,&nbsp;A. V. Chukin,&nbsp;I. Felner,&nbsp;E. Kuzmann,&nbsp;Z. Homonnay,&nbsp;R. F. Muftakhetdinova,&nbsp;V. I. Grokhovsky,&nbsp;M. I. Oshtrakh","doi":"10.1111/maps.14363","DOIUrl":"https://doi.org/10.1111/maps.14363","url":null,"abstract":"<p>A fragment of the Kayakent IIIAB iron meteorite was analyzed using optical microscopy, scanning electron microscopy (SEM) with energy-dispersive spectroscopy (EDS) and electron backscatter diffraction (EBSD), X-ray diffraction (XRD), magnetization measurements, and Mössbauer spectroscopy. Optical microscopy and SEM show the presence of (i) the pure α₂-Fe(Ni, Co) grains, (ii) the γ-Fe(Ni, Co) phase grains, (iii) the γ-Fe(Ni, Co) rims around the α₂-Fe(Ni, Co) phase areas, (iv) the cloudy zone (a mixture of the γ-FeNi(Co) and α₂-Fe(Ni, Co) phases), (v) plessite structures, and (vi) schreibersite inclusions in the α-Fe(Ni, Co) phase. The α-Fe(Ni, Co) phase demonstrates the ε-structure α_ε-Fe(Ni, Co) with the presence of at least three different orientations of the α_ε-Fe(Ni, Co) microcrystals, as shown by EBSD. EDS indicates variations in the Ni concentrations in the following ranges: (i) ~5.4–7.2 atom% in the α-Fe(Ni, Co) phase, (ii) ~15–18 atom% in the α₂-Fe(Ni, Co) phase, and (iii) ~29–47 atom% in the γ-Fe(Ni, Co) phase grains. Schreibersite inclusions contain ~23.5–23.6 atom% of P, ~45.1–46.5 atom% of Fe, and ~28.8–31.4 atom% of Ni. The presence of ~98.1 wt% of the α-Fe(Ni, Co) phase and ~1.9 wt% of the γ-Fe(Ni, Co) phase is found by XRD in the powdered sample, while schreibersite is detected by XRD in the surface of the section only. Magnetization measurements show ferromagnetic multiphase material and a magnetic saturation moment of 175 emu g⁻¹. The room temperature Mössbauer spectrum of the powdered Kayakent IIIAB sample demonstrates six magnetic sextets related to the ferromagnetic α₂-Fe(Ni, Co), α-Fe(Ni, Co), and γ-Fe(Ni, Co) phases and one singlet assigned to the paramagnetic γ-Fe(Ni, Co) phase. In addition, the Mössbauer spectrum shows six minor magnetic sextets associated with ⁵⁷Fe in the M1, M2, and M3 sites in schreibersite and one minor doublet shape assigned to the superparamagnetic rhabdite microcrystals. The iron fractions in the detected phases can be roughly estimated as follows: (i) ~11.9% in the α₂-Fe(Ni, Co) phase, (ii) ~75.6% in the α-Fe(Ni, Co) phase, (iii) ~5.7% in the disordered γ-Fe(Ni, Co) phase with Ni content of ~34–40 atom%, (iv) ~1.5% in the more ordered γ-Fe(Ni, Co) phase with a higher Ni content (~46–47 atom%), (v) ~0.5% in the paramagnetic γ-Fe(Ni, Co) phase (~29–33 atom% of Ni), (vi) ~3% in schreibersite, and (vii) ~2% in rhabdite.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"60 6","pages":"1421-1432"},"PeriodicalIF":2.2,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144292734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low-temperature dissociation of zircon in highly alkaline conditions: A cautionary note for studies on natural glasses of debated origin","authors":"A. Musolino,&nbsp;B. Devouard,&nbsp;P. Rochette,&nbsp;P. Roperch,&nbsp;P. M. Zanetta,&nbsp;A.-M. Seydoux-Guillaume,&nbsp;A. Licht,&nbsp;D. Ferry,&nbsp;A. Campos","doi":"10.1111/maps.14372","DOIUrl":"https://doi.org/10.1111/maps.14372","url":null,"abstract":"<p>Dissociated zircon is largely used as a robust indicator of glasses generated by impact cratering and airbursts. The reaction of zircon dissociation, i.e. ‘ZrSiO₄ → ZrO₂ + SiO₂’, requires high temperatures (&gt;1670°C) only reached by extreme geological processes. Using high-temperature experiments, this study shows that zircon can dissociate and form ZrO₂-rich coronitic rims at temperatures of 900–1000°C (P = 1 bar), in the presence of a specific chemical environment made of NaCl or a mixture of NaCl and caliche soil (Ca-sulfates). The use of silica glass vessels provides a SiO₂-rich environment during the experiments. We observe that the dissociation is strongly related to the complexity of the surrounding system (e.g. the presence of other minerals that act as a flux) in which the reaction occurs. For these reasons, we suggest considering a more careful approach in using dissociated zircon as indicative of very high temperatures in glass-forming processes.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"60 7","pages":"1573-1586"},"PeriodicalIF":2.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14372","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comments on “Shock-heated graphite in three IAB iron meteorite–implications on the formation of diamond by Christ et al. (2025)”","authors":"Laura Noel García,&nbsp;Maria Eugenia Varela","doi":"10.1111/maps.14373","DOIUrl":"https://doi.org/10.1111/maps.14373","url":null,"abstract":"","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"60 7","pages":"1679-1680"},"PeriodicalIF":2.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ni isotopic compositions in shocked ordinary chondrites: Insights into the influence of shock processes","authors":"Zhi Li,&nbsp;Ying-Kui Xu,&nbsp;Shui-Jiong Wang,&nbsp;Si-Zhang Sheng,&nbsp;Shi-Jie Li,&nbsp;Xiong-Yao Li,&nbsp;Jian-Zhong Liu,&nbsp;Dan Zhu","doi":"10.1111/maps.14369","DOIUrl":"https://doi.org/10.1111/maps.14369","url":null,"abstract":"<p>High-energy impact events prevalent during planetary accretion in the solar system's evolution significantly shaped planetary bodies, though the effects of shock metamorphism on nickel (Ni) isotope fractionation remain unclear. To investigate the effect of the shock process on Ni isotopes, we selected three shocked ordinary chondrites (OCs) and obtained three sample pairs, each consisting of a melted region and its corresponding unmelted region. We also prepared two whole rock samples and four pairs of magnetic and coupled nonmagnetic samples. The shock melt pockets (SMPs) from three shocked OCs (Chelyabinsk LL5, Viñales L6, Tassédet 004 H5) show δ⁶⁰Ni values of 0.15 ± 0.05‰, 0.14 ± 0.02‰, and 0.20 ± 0.04‰, while adjacent unmelted parts show δ⁶⁰Ni values of 0.21 ± 0.03‰, 0.19 ± 0.01‰, and 0.19 ± 0.03‰. These data are slightly higher than the BSE value (0.11 ± 0.01‰) but generally overlap with the Ni isotopic variation of OCs (0.15–0.51‰) reported in previous studies. The SMPs do not show discernible isotopic variations relative to coupled unmelted parts, suggesting that shock-induced evaporation could not cause Ni isotope fractionation. The value of bulk OCs is calculated by compiling data from previous and this study, yielding a value of <span></span><math>\u0000 <mrow>\u0000 <msubsup>\u0000 <mn>0.21</mn>\u0000 <mrow>\u0000 <mo>−</mo>\u0000 <mn>0.11</mn>\u0000 </mrow>\u0000 <mrow>\u0000 <mo>+</mo>\u0000 <mn>0.28</mn>\u0000 </mrow>\u0000 </msubsup>\u0000 <mo>‰</mo>\u0000 </mrow></math>. Moreover, no consistent Ni isotopic variations from four pairs of magnetic and nonmagnetic counterparts are observed. Several possible processes resulting in Ni isotopic variations are discussed. A slight negative correlation between S content and Ni isotopic composition, along with a positive correlation between Ni elemental and isotopic composition in shocked OCs, suggests that the Ni isotopic characteristics may be predominantly influenced by the relative proportions of metal and sulfide phases.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"60 7","pages":"1545-1554"},"PeriodicalIF":2.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}