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《科学》 第392卷 第6801期 · 2026年5月28日 · 中文解读

赤铁矿:火星古代气候变化的矿物学标志

Hematite is a mineralogical marker of ancient climate change on Mars · M. Szczerba et al.
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研究人员利用好奇号火星车在盖尔陨石坑的测量数据,发现赤铁矿的晶体尺寸和伴生矿物记录了火星古代气候从温暖湿润向寒冷干燥的转变。
原文开头
MaRs GeOlOGY Hematite is a mineralogical marker of ancient climate change on Mars The ancient climate of Mars changed from warm to cold surface conditions. This climate transition is demonstrated by geomorphological evidence but lacks suitable mineralogical indicators. We investigated the crystallographic properties of hematite (iron oxide) in Gale crater measured by the Curiosity rover and compared them with laboratory experiments. Hematite crystallite sizes are about 5 to 65 nm in the oldest sedimentary rocks investigated by the rover (the Murray formation) and less than 10 nm in the younger overlying strata (the Mirador and Carolyn Shoemaker formations). …
摘自《科学》(Science)第392卷 第6801期 · 2026年5月28日,M. Szczerba et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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