概括
这项研究在土壤碎片中发现了惰性气体,可能来自太阳风. 这些气体与表面相关,样本的-年龄为44.2亿年.
科学领域:
- 地质化学 地质化学
- 太空化学 太空化学
- 行星科学 行星科学
背景情况:
- 土壤碎片含有大量的惰性气体.
- 气体度与粒子大小呈反向关系,表明表面相关性.
研究的目的:
- 在土壤样本中调查惰性气体的来源和特征 10084,40.
- 为了确定样本的同位素组成和潜在年龄.
主要方法:
- 与颗粒大小相关的惰性气体度的分析.
- 元素和同位素比率与太阳和石值的比较.
- 计算-年龄的方法.
主要成果:
- 发现了大量的惰性气体,与粒子大小成反比例,表明表面相关性.
- 玻璃和地的气体含量比石灰碎片少.
- 元素比率不同于太阳值,而同位素比率类似于石.
- 阿贡-40包括放射性和表面相关的成分.
结论:
- 惰性气体可能来自太阳风或太阳宇宙射线.
- 该样本表现出与外星物质一致的特征.
- 据计算,和的年龄为44.2亿年,这表明它们的起源很古老.
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