Metallic messengers from the cosmos: Rare (Al,Cu)-bearing meteorites from the Project Stardust collection

IF 2.4 4区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Meteoritics & Planetary Science Pub Date : 2025-06-11 DOI:10.1111/maps.14377

Luca Bindi, Jon Larsen, Jan B. Kihle, Guangming Cheng, Jinping Hu, Nan Yao, Chi Ma, Yunbin Guan, Paul D. Asimow, Paul J. Steinhardt

引用次数: 0

Abstract

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.

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来自宇宙的金属信使：来自星尘计划收集的稀有（Al,Cu）陨石

我们报告了在挪威城市屋顶环境收集的星尘项目中发现的两颗微陨石中发现的（Al,Cu）含金属合金。大多数合金与在卡蒂尔卡陨石和其他微陨石中发现的合金相同，尽管其中一种合金的成分以前没有报道过。利用二次离子质谱法进行的氧同位素比测量表明，这里报告的星尘计划样品，像所有早期的天然（Al,Cu）合金的例子一样，含有球粒陨石亲和力的物质。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Meteoritics & Planetary Science 地学天文-地球化学与地球物理

CiteScore

3.90

自引率

31.80%

发文量

121

审稿时长

3 months

期刊介绍： First issued in 1953, the journal publishes research articles describing the latest results of new studies, invited reviews of major topics in planetary science, editorials on issues of current interest in the field, and book reviews. The publications are original, not considered for publication elsewhere, and undergo peer-review. The topics include the origin and history of the solar system, planets and natural satellites, interplanetary dust and interstellar medium, lunar samples, meteors, and meteorites, asteroids, comets, craters, and tektites. Our authors and editors are professional scientists representing numerous disciplines, including astronomy, astrophysics, physics, geophysics, chemistry, isotope geochemistry, mineralogy, earth science, geology, and biology. MAPS has subscribers in over 40 countries. Fifty percent of MAPS'' readers are based outside the USA. The journal is available in hard copy and online.