Non-destructive quantitative analysis of melt inclusions in extraterrestrial samples: Case study of chassignite via nanoscale X-ray computed tomography [0.03%]
基于纳米级X射线计算机断层扫描的无损定量分析陨石中的熔融包裹体：通过橄榄石中玻璃球体的研究克萨苏rite基 achondritic meteorites
Peiyu Wu,Kyle Dayton,Esteban Gazel et al.
Peiyu Wu et al.
Estimation of the composition of planetary rocks and minerals is crucial for understanding their formation processes. In this study, we present the application of X-ray nano-computed tomography (nano-XCT) for non-destructive 3D phase analys...
Donald Lewis Bowden,John C Bridges,Agnes Cousin et al.
Donald Lewis Bowden et al.
Askival is a light-toned, coarsely crystalline float rock, which was identified near the base of Vera Rubin Ridge in Gale crater. We have studied Askival, principally with the ChemCam instrument but also using APXS compositional data and MA...
Correction and calibration of atmospheric impact observations in GOES GLM data [0.03%]
GOES GLM数据中大气影响观测的校正与标定
Robert L Morris,Jeffrey Claiborne Smith,Jessie L Dotson et al.
Robert L Morris et al.
The Earth's atmosphere is impacted daily by both meteoroids and artificial objects. Calibrated observations of the emitted light at sufficiently high sampling rates can enable or improve the estimation of impactor attributes such as size, c...
Visualization and identification of single meteoritic organic molecules by atomic force microscopy [0.03%]
利用原子力显微镜对单个陨石有机分子的可视化及辨识
Katharina Kaiser,Fabian Schulz,Julien F Maillard et al.
Katharina Kaiser et al.
Using high-resolution atomic force microscopy (AFM) with CO-functionalized tips, we atomically resolved individual molecules from Murchison meteorite samples. We analyzed powdered Murchison meteorite material directly, as well as processed ...
A revised trapped melt model for iron meteorites applied to the IIIAB group [0.03%]
适用于IIIAB组的铁陨石熔体滞留模型修订版
Nancy L Chabot,Bidong Zhang
Nancy L Chabot
As the largest magmatic iron meteorite group, the IIIAB group is often used to investigate the process of core crystallization in asteroid-sized bodies. However, previous IIIAB crystallization models have not succeeded in both explaining th...
Pb-Pb ages and initial Pb isotopic composition of lunar meteorites: NWA 773 clan, NWA 4734, and Dhofar 287 [0.03%]
月球陨石的铅同位素年龄和初始铅同位素组成：NWA 773群、NWA 4734和DHOFAR 287
R E Merle,A A Nemchin,M J Whitehouse et al.
R E Merle et al.
Constraining the duration of magmatic activity on the Moon is essential to understand how the lunar mantle evolved chemically through time. Determining age and initial isotopic compositions of mafic lunar meteorites is a critical step in de...
Trace element geochemistry of coarse-grained angrites from Northwest Africa: Implications for their petrogenesis on the angrite parent body [0.03%]
西北非粗粒角状无球粒陨石微量元素地球化学：其在角状无球粒陨石母体上的岩石成因意义
Matthew E Sanborn,Meenakshi Wadhwa
Matthew E Sanborn
The angrites are a class of achondrites that encompass a wide range of igneous textures from quenched, volcanic, and subvolcanic stones to slowly cooled, plutonic rocks. The compositions of the various geochemical reservoirs generating this...
Peter Jenniskens,Mohutsiwa Gabadirwe,Qing-Zhu Yin et al.
Peter Jenniskens et al.
The June 2, 2018, impact of asteroid 2018 LA over Botswana is only the second asteroid detected in space prior to impacting over land. Here, we report on the successful recovery of meteorites. Additional astrometric data refine the approach...
Thermal metamorphism of CM chondrites: A dehydroxylation-based peak-temperature thermometer and implications for sample return from asteroids Ryugu and Bennu [0.03%]
CM球粒陨石的热变质作用——基于脱羟基化的峰值温度计研究及其对小行星龙宫和本努采样返回任务的意义
Michael A Velbel,Michael E Zolensky
Michael A Velbel
The target bodies of C-complex asteroid sample return missions are carbonaceous chondrite-like near-Earth asteroids (NEAs), chosen for the abundance and scientific importance of their organic compounds and "hydrous" (including hydroxylated)...
Kim Müsing,Henner Busemann,Liliane Huber et al.
Kim Müsing et al.
We measured noble gases in "cluster chondrite clasts" from nine unequilibrated ordinary chondrites (UOCs). For five meteorites, we also present data for so-called "clastic matrix," the impact-brecciated material in which the angular to subr...