This is the first report of coupled noble gases (He, Ne, Ar, Kr and Xe) and nitrogen isotopic results in metal separates from the ordinary chondrites Katol (L6), Itawa Bhopji (L3-5) and Portales Valley (H6). Noble gas elemental ratios (corrected for cosmogenic) in the metal separates are mixture of several components, Q-gas, air and solar wind. The chondritic metal shows new nitrogen isotopic data, with N abundances in the range of 0.19 to 5.62 ppm and distinct isotopic signatures. Nitrogen composition observed in metal separates is inconsistent with the solar wind (SW) and Q-gas. 15N enriched nitrogen is exhibited in metal separates compared to the SW and Q-gas. In metal separates, no systematics correlation was observed between the amounts and trapped nitrogen isotopic ratios. Nitrogen isotopic ratios found in the metal separates indicate an origin from local affects that occurred on the parent body. The elemental ratios of nitrogen and noble gases in the metal separates are within the range observed in the bulk meteorites, but distinct compared to the SW and Q-gas.

中文翻译：

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来自普通球粒陨石 Katol (L6)、Itawa Bhopji (L3-5) 和 Portales Valley (H6) 的金属中的惰性气体和氮

这是第一份关于惰性气体（He、Ne、Ar、Kr 和 Xe）和氮同位素导致金属从普通球粒陨石 Katol (L6)、Itawa Bhopji (L3-5) 和 Portales Valley (H6) 分离的报告。金属分离物中的惰性气体元素比（校正宇宙成因）是几种成分的混合物，Q-气体、空气和太阳风。球粒状金属显示出新的氮同位素数据，N 丰度在 0.19 至 5.62 ppm 范围内，并且具有不同的同位素特征。在金属分离物中观察到的氮成分与太阳风 (SW) 和 Q 气体不一致。与 SW 和 Q 气体相比，金属分离物中显示出富含 15N 的氮。在金属分离中，在数量和捕获的氮同位素比率之间没有观察到系统学相关性。在金属分离物中发现的氮同位素比率表明起源于母体上发生的局部影响。金属分离物中氮气和稀有气体的元素比率在大块陨石中观察到的范围内，但与 SW 和 Q 气体相比有所不同。