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我国科学家发现火星存在固态内核

2025-09-04 17:44:08 来源：财联社责任编辑：袁梦

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9月4日，据中国科学技术大学消息，我国科学家确证火星内部存在一个半径约600千米的固态内核，并揭示其主要成分可能是富含轻元素的结晶铁镍合金。北京时间9月3日，该成果发表于《自然》杂志。火震数据显示，火星外核与内核之间存在约30%的波速跳变和约7%的密度差异。在此基础上，研究团队进一步对内核的矿物组成进行了分析。结果表明，火星核并非纯铁镍构成，还可能包含硫、氧、碳等其他元素。这种含有轻元素的星核结构，不仅为火星磁场从早期活跃到如今沉寂的演化历程提供了重要线索，也为对比地球与其他类地行星的内部演化差异奠定了关键基础。

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