About: Gas-rich meteorites

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Gas-rich meteorites are meteorites with high levels of primordial gases, such as helium, neon, argon, krypton, xenon and sometimes other elements. Though these gases are present "in virtually all meteorites," the Fayetteville meteorite has ~2,000,000 x10−8 ccSTP/g helium, or ~2% helium by volume equivalent. In comparison, background level is a few ppm.

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  • Gas-rich meteorites are meteorites with high levels of primordial gases, such as helium, neon, argon, krypton, xenon and sometimes other elements. Though these gases are present "in virtually all meteorites," the Fayetteville meteorite has ~2,000,000 x10−8 ccSTP/g helium, or ~2% helium by volume equivalent. In comparison, background level is a few ppm. The identification of gas-rich meteorites is based on the presence of light noble gases in large amounts, at levels which cannot be explained without involving an additional component over and above the well-known noble gas components that are present in all meteorites. (en)
  • 富氣隕石是指含有大量惰性氣體，例如氦、氖、氬、氪、氙，有時還有其它元素的隕石。儘管這些氣體實際上幾乎存在所有的隕石中，費耶特維爾隕石有〜2,000,000 x10−8 ccSTP/公克氦，或〜2%體積當量的氦。相較背景水準是只有幾個PPM。 富氣隕石的鑑定是依據所存在輕稀有氣體的量，如果不在所有隕石中存在的已知稀有氣體組成分組的基礎上再增加一個分組，就無法解釋其含量。 (zh)
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  • 富氣隕石是指含有大量惰性氣體，例如氦、氖、氬、氪、氙，有時還有其它元素的隕石。儘管這些氣體實際上幾乎存在所有的隕石中，費耶特維爾隕石有〜2,000,000 x10−8 ccSTP/公克氦，或〜2%體積當量的氦。相較背景水準是只有幾個PPM。 富氣隕石的鑑定是依據所存在輕稀有氣體的量，如果不在所有隕石中存在的已知稀有氣體組成分組的基礎上再增加一個分組，就無法解釋其含量。 (zh)
  • Gas-rich meteorites are meteorites with high levels of primordial gases, such as helium, neon, argon, krypton, xenon and sometimes other elements. Though these gases are present "in virtually all meteorites," the Fayetteville meteorite has ~2,000,000 x10−8 ccSTP/g helium, or ~2% helium by volume equivalent. In comparison, background level is a few ppm. (en)
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  • Gas-rich meteorites (en)
  • 富氣隕石 (zh)
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