Meteoritics & Planetary Science最新文献

{"title":"The Meteoritical Bulletin, no. 112","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.14181","DOIUrl":"10.1111/maps.14181","url":null,"abstract":"<p>Meteoritical Bulletin 112 contains the 2487 meteorites approved by the Nomenclature Committee of the Meteoritical Society in 2023. It includes 14 falls, 1926 ordinary chondrites, 141 HED, 127 carbonaceous chondrites (including 6 ungrouped), 71 lunar meteorites, 37 ureilites, 36 mesosiderites, 27 Martian meteorites, 23 iron meteorites (6 ungrouped), 20 Rumuruti chondrites, 19 ungrouped achondrites, 19 enstatite chondrites, 18 primitive achondrites (2 ungrouped), 12 pallasites, 6 angrites, 4 enstatite achondrites, and 1 ungrouped chondrite. Of the meteorites approved in 2023, 968 were from Africa, 836 from South America, 572 from Antarctica, 66 from Asia, 35 from North America, 9 from Europe, and 1 from Oceania.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"59 7","pages":"1820-1823"},"PeriodicalIF":2.2,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14181","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140988040","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":"Metal impact and vaporization on the Moon's surface: Nano-geochemical insights into the source of lunar metals","authors":"Phillip Gopon,&nbsp;James O. Douglas,&nbsp;Hazel Gardner,&nbsp;Michael P. Moody,&nbsp;Bernard Wood,&nbsp;Alexander N. Halliday,&nbsp;Jon Wade","doi":"10.1111/maps.14184","DOIUrl":"10.1111/maps.14184","url":null,"abstract":"<p>Millimeter-to-nanometer-sized iron- and nickel-rich metals are ubiquitous on the lunar surface. The proposed origin of these metals falls into two broad classes which should have distinct geochemical signatures—(1) the reduction of iron-bearing minerals or (2) the addition of metals from meteoritic sources. The metals measured here from the Apollo 16 regolith possess low Ni (2–6 wt%) and elevated Ge (80–350 ppm) suggesting a meteoritic origin. However, the measured Ni is lower, and the Ge higher than currently known iron meteorites. In comparison to the low Ni iron meteorites, the even lower Ni and higher Ge contents exhibited by these lunar metals are best explained by impact-driven volatilization and condensation of Ni-poor meteoritic metal during their impact and addition to the lunar surface. The presence of similar, low Ni-bearing metals in Apollo return samples from geographically distant sites suggests that this geochemical signature might not be restricted to just the Apollo 16 locality and that volatility-driven modification of meteoritic metals are a common feature of lunar regolith formation. The possibility of a significant low Ni/high Ge meteoritic component in the lunar regolith, and the observation of chemical fractionation during emplacement, has implications for the interpretation of both lunar remote-sensing data and bulk geochemical data derived from sample return material. Additionally, our observation of predominantly meteoritic sourced metals has implications for the prevalence of meteoritic addition on airless planetary bodies.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"59 7","pages":"1775-1789"},"PeriodicalIF":2.2,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14184","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140990059","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":"Mineralogical approach on laboratory weathering of uncontaminated Ryugu particles: Comparison with Orgueil and perspective for storage and analysis","authors":"Naoya Imae,&nbsp;Naotaka Tomioka,&nbsp;Masayuki Uesugi,&nbsp;Makoto Kimura,&nbsp;Akira Yamaguchi,&nbsp;Motoo Ito,&nbsp;Richard C. Greenwood,&nbsp;Tatsuya Kawai,&nbsp;Naoki Shirai,&nbsp;Takuji Ohigashi,&nbsp;Cedric Pilorget,&nbsp;Jean-Pierre Bibring,&nbsp;Ming-Chang Liu,&nbsp;Kentaro Uesugi,&nbsp;Aiko Nakato,&nbsp;Kasumi Yogata,&nbsp;Hayato Yuzawa,&nbsp;Yu Kodama,&nbsp;Masahiro Yasutake,&nbsp;Kaori Hirahara,&nbsp;Akihisa Takeuchi,&nbsp;Ikuya Sakurai,&nbsp;Ikuo Okada,&nbsp;Yuzuru Karouji,&nbsp;Toru Yada,&nbsp;Masanao Abe,&nbsp;Tomohiro Usui","doi":"10.1111/maps.14178","DOIUrl":"10.1111/maps.14178","url":null,"abstract":"<p>Although CI chondrites are susceptible to terrestrial weathering on Earth, the specific processes are unknown. To elucidate the weathering mechanism, we conduct a laboratory experiment using pristine particles from asteroid Ryugu. Air-exposed particles predominantly develop small-sized euhedral Ca-S-rich grains (0.5–1 μm) on the particle surface and along open cracks. Both transmission electron microscopy and synchrotron-based computed tomography combined with XRD reveal that the grains are hydrous Ca-sulfate. Notably, this phase does not form in vacuum- or nitrogen-stored particles, suggesting this result is due to laboratory weathering. We also compare the Orgueil CI chondrite with the altered Ryugu particles. Due to the weathering of pyrrhotite and dolomite, Orgueil contains a significant amount of gypsum and ferrihydrite. We suggest that mineralogical changes due to terrestrial weathering of particles returned directly from asteroid occur even after a short-time air exposure. Consequently, conducting prompt analyses and ensuring proper storage conditions are crucial, especially to preserve the primordial features of organics and volatiles.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"59 7","pages":"1705-1722"},"PeriodicalIF":2.2,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14178","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140994100","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":"Cover","authors":"","doi":"10.1111/maps.14010","DOIUrl":"https://doi.org/10.1111/maps.14010","url":null,"abstract":"<p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"59 5","pages":"i"},"PeriodicalIF":2.2,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140907005","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":"Michael Ewing Zolensky as the 55th recipient of Leonard Medal","authors":"Don Brownlee","doi":"10.1111/maps.14167","DOIUrl":"10.1111/maps.14167","url":null,"abstract":"","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"59 S1","pages":"A475-A476"},"PeriodicalIF":2.2,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141005044","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 Earth atmosphere-like bulk nitrogen isotope composition obtained by stepwise combustion analyses of Ryugu return samples","authors":"Ko Hashizume,&nbsp;Akizumi Ishida,&nbsp;Ayano Chiba,&nbsp;Ryuji Okazaki,&nbsp;Kasumi Yogata,&nbsp;Toru Yada,&nbsp;Fumio Kitajima,&nbsp;Hisayoshi Yurimoto,&nbsp;Tomoki Nakamura,&nbsp;Takaaki Noguchi,&nbsp;Hikaru Yabuta,&nbsp;Hiroshi Naraoka,&nbsp;Yoshinori Takano,&nbsp;Kanako Sakamoto,&nbsp;Shogo Tachibana,&nbsp;Masahiro Nishimura,&nbsp;Aiko Nakato,&nbsp;Akiko Miyazaki,&nbsp;Masanao Abe,&nbsp;Tatsuaki Okada,&nbsp;Tomohiro Usui,&nbsp;Makoto Yoshikawa,&nbsp;Takanao Saiki,&nbsp;Fuyuto Terui,&nbsp;Satoshi Tanaka,&nbsp;Satoru Nakazawa,&nbsp;Sei-ichiro Watanabe,&nbsp;Yuichi Tsuda,&nbsp;Michael W. Broadley,&nbsp;Henner Busemann,&nbsp;the Hayabusa2 Initial Analysis Volatile Team","doi":"10.1111/maps.14175","DOIUrl":"https://doi.org/10.1111/maps.14175","url":null,"abstract":"<p>The nitrogen isotope compositions of two samples returned from the asteroid Ryugu were determined using a stepwise combustion method, along with Ivuna (CI) and Y-980115, a CI-like Antarctic meteorite, as references. The two Ryugu samples A0105-07 and C0106-07 showed bulk δ¹⁵N values of +1.7 ± 0.5‰ and +0.2 ± 0.6‰, respectively, significantly lower than Ivuna with +36.4 ± 0.4‰, but close to Y-980115 with +4.0 ± 0.3‰. The Ryugu samples are further characterized by C/N and ³⁶Ar/N ratios up to 3.4× and 4.9× the value of Ivuna, respectively. Among all Ryugu samples and CI chondrites, a positive correlation was observed between nitrogen concentrations and δ¹⁵N values, with samples with lower nitrogen concentrations exhibiting lower δ¹⁵N. This trend is explained by a two-component mixing model. One component is present at a constant abundance among all CI-related samples, with a δ¹⁵N value around 0‰ or lower. The other varies in abundance between different samples, and exhibits a δ¹⁵N value of +56 ± 4‰. The first ¹⁵N-poor endmember is seemingly tightly incorporated into a carbonaceous host phase, whereas the ¹⁵N-rich endmember can be mobilized and decoupled from carbon, potentially because it is in the form of ammonia. Asteroid materials with volatile compositions that are similar to those reported here for the Ryugu samples are attractive candidates for the volatile sources among Earth's building blocks.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"59 8","pages":"2117-2133"},"PeriodicalIF":2.2,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14175","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141991716","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":"Impact origin of lunar zircon melt inclusions in Apollo impact melt breccia 14311","authors":"Carolyn A. Crow,&nbsp;Cynthia Tong,&nbsp;Timmons M. Erickson,&nbsp;Desmond E. Moser,&nbsp;Aaron S. Bell,&nbsp;Nigel M. Kelly,&nbsp;Tabb C. Prissel,&nbsp;Brendt C. Hyde","doi":"10.1111/maps.14162","DOIUrl":"https://doi.org/10.1111/maps.14162","url":null,"abstract":"<p>Investigations of trapped melt inclusions in minerals can yield insights into the compositions and conditions of parent magmas. These insights are particularly important for detrital grains like many of the lunar zircons found in samples returned by the Apollo missions. However, unlike their terrestrial counterparts, lunar zircons have potentially been exposed to billions of years of impact bombardment. Samples from terrestrial impact structures and impact shock experiments have revealed that deformation during an impact event produces melt and glass blebs that can mimic igneous melt inclusions in both morphology and composition. We have undertaken a geochemical and textural investigation of zircons from Apollo impact melt breccia 14311 to assess their formation mechanisms. The association of trapped melts with shock microtwins and monomineralic melt compositions suggests some inclusions formed as a result of the high pressures and temperatures of impact shock. All other inclusions in this study are associated with curviplanar features, planar features, crystal plastic deformation, or embayments (large regions in contact with adjacent melts or minerals) suggesting that they are not igneous melt inclusions. While these textures can be produced in tectonic environments, impacts are a likely formation mechanism since impacts are the main driver of tectonics on the Moon. The results of this study demonstrate that a combination of textural and compositional analyses can be employed distinguish between igneous melt inclusions and melt blebs in zircons from impact environments.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"59 7","pages":"1509-1522"},"PeriodicalIF":2.2,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141583950","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":"Provenance constraints on the Late Triassic ejecta layer from Churchwood Quarry, SW England: An impactite suite from Manicouagan","authors":"Maree McGregor,&nbsp;John G. Spray,&nbsp;Christopher R. M. McFarlane","doi":"10.1111/maps.14172","DOIUrl":"https://doi.org/10.1111/maps.14172","url":null,"abstract":"<p>In situ LA-ICP-MS/MS U-Pb and Rb-Sr geochronology combined with geochemical analysis and electron microscopy have been performed on ejecta components sampled from the Mid-to-Late Triassic Mercia Mudstone Group at Churchwood Quarry, SW England. The layer comprises altered impact spherules, melt-rich and fragment-rich accreted grain clusters (AGCs), along with shocked mineral phases. Late Triassic ages are obtained: a U-Pb age of 219 ± 72 Ma from variably shock-metamorphosed apatite and a Rb-Sr age of 213 ± 31 Ma from melt-rich AGCs. A post-depositional U-Pb age of 200 ± 7.5 Ma obtained from the carbonate host matrix correlates with an early Jurassic dolomitization event associated with regional marine transgression. Several links to the Manicouagan impact structure, Canada, are identified that complement previous provenance studies: (1) rare earth element compositions of impact spherules and melt-rich AGCs match those of the Manicouagan impact melt sheet; (2) the preservation of Archean and Paleo- to Neoproterozoic target rock U-Pb ages in zircon and apatite match those recorded within Manicouagan basement lithologies; and (3) impact spherules and melt-rich AGCs record initial ⁸⁷Sr/⁸⁶Sr compositions that overlap with those of the Manicouagan impact melt sheet and the target rocks involved in their generation.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"59 7","pages":"1632-1657"},"PeriodicalIF":2.2,"publicationDate":"2024-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14172","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141584129","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":"Low-temperature thermal and physical properties of lunar meteorites","authors":"R. J. Macke,&nbsp;C. P. Opeil,&nbsp;D. T. Britt,&nbsp;G. J. Consolmagno,&nbsp;A. Irving","doi":"10.1111/maps.14171","DOIUrl":"10.1111/maps.14171","url":null,"abstract":"<p>Lunar meteorites are the most diverse and readily available specimens for the direct laboratory study of lunar surface materials. In addition to informing us about the composition and heterogeneity of lunar material, measurements of their thermo-physical properties provide data necessary to inform the models of the thermal evolution of the lunar surface and provide data on fundamental physical properties of the surface material for the design of exploration and resource extraction hardware. Low-temperature data are particularly important for the exploration of low-temperature environments of the lunar poles and permanently shadowed regions. We report low-temperature-specific heat capacity, thermal conductivity, and linear thermal expansion for six lunar meteorites: Northwest Africa [NWA] 5000, NWA 6950, NWA 8687, NWA 10678, NWA 11421, and NWA 11474, over the range 5 ≤ T ≤ 300 K. From these, we calculate thermal inertia and thermal diffusivity as functions of temperature. Additionally, heat capacities were measured for 15 other lunar meteorites, from which we calculate their Debye temperature and effective molar mass.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"59 7","pages":"1610-1631"},"PeriodicalIF":2.2,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140691740","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":"Coevolution of phyllosilicate, carbon, sulfide, and apatite in Ryugu's parent body","authors":"Zack Gainsforth,&nbsp;Gerardo Dominguez,&nbsp;Kana Amano,&nbsp;Megumi Matsumoto,&nbsp;Yuri Fujioka,&nbsp;Eiichi Kagawa,&nbsp;Tomoki Nakamura,&nbsp;Shogo Tachibana,&nbsp;Tomoyo Morita,&nbsp;Mizuha Kikuiri,&nbsp;Hisayoshi Yurimoto,&nbsp;Takaaki Noguchi,&nbsp;Ryuji Okazaki,&nbsp;Hikaru Yabuta,&nbsp;Hiroshi Naraoka,&nbsp;Kanako Sakamoto,&nbsp;Toru Yada,&nbsp;Masahiro Nishimura,&nbsp;Aiko Nakato,&nbsp;Akiko Miyazaki,&nbsp;Kasumi Yogata,&nbsp;Masano Abe,&nbsp;Tatsuaki Okada,&nbsp;Tomohiro Usui,&nbsp;Makoto Yoshikawa,&nbsp;Takanao Saiki,&nbsp;Satoshi Tanaka,&nbsp;Fuyuto Terui,&nbsp;Satoru Nakazawa,&nbsp;Sei-ichiro Watanabe,&nbsp;Yuichi Tsuda,&nbsp;Hayabusa2 Initial Analysis Stone Team","doi":"10.1111/maps.14161","DOIUrl":"10.1111/maps.14161","url":null,"abstract":"<p>We analyzed an asteroid Ryugu sample returned to Earth by JAXA's Hayabusa2 mission using nanoIR, SEM, and TEM microscopy. We identified multiple distinct carbon reservoirs within the phyllosilicate matrix and demonstrate infrared spectral affinities for some of the carbon to insoluble organic matter (IOM). TEM studies of Ryugu samples have allowed us to better understand the interrelationship between the crystallographic orientations of phyllosilicates and the secondary minerals such as carbonate, sulfide, and apatite. Transport of elements provides a unifying theme for understanding these interrelationships.</p>","PeriodicalId":18555,"journal":{"name":"Meteoritics & Planetary Science","volume":"59 8","pages":"2073-2096"},"PeriodicalIF":2.2,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/maps.14161","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140701183","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}