Composition of asteroid Bennu transformed by aqueous alteration

IF 16.1 1区地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY

Nature Geoscience Pub Date : 2025-08-22 DOI:10.1038/s41561-025-01765-6

引用次数: 0

Abstract

Analysis of millimetre-sized fragments from asteroid Bennu suggests that its parent asteroid coalesced in the outer Solar System from primordial nebular dust and ice and was poor in chondrules, objects common in primitive meteorites. Abundant phyllosilicates with minor sulfides, carbonates and magnetite formed during early alteration by water, with evaporite minerals forming later.

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贝努小行星经水蚀变后的组成

对来自小行星Bennu的毫米大小碎片的分析表明，它的母体小行星在太阳系外由原始星云尘埃和冰合并而成，并且缺乏原始陨石中常见的球粒。早期水蚀变形成丰富的层状硅酸盐，少量硫化物、碳酸盐和磁铁矿，后期形成蒸发岩矿物。

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

Nature Geoscience 地学-地球科学综合

CiteScore

26.70

自引率

1.60%

发文量

187

审稿时长

3.3 months

期刊介绍： Nature Geoscience is a monthly interdisciplinary journal that gathers top-tier research spanning Earth Sciences and related fields. The journal covers all geoscience disciplines, including fieldwork, modeling, and theoretical studies. Topics include atmospheric science, biogeochemistry, climate science, geobiology, geochemistry, geoinformatics, remote sensing, geology, geomagnetism, paleomagnetism, geomorphology, geophysics, glaciology, hydrology, limnology, mineralogy, oceanography, paleontology, paleoclimatology, paleoceanography, petrology, planetary science, seismology, space physics, tectonics, and volcanology. Nature Geoscience upholds its commitment to publishing significant, high-quality Earth Sciences research through fair, rapid, and rigorous peer review, overseen by a team of full-time professional editors.