Figure 2 | Scientific Reports

Figure 2

From: The origin and fate of volatile elements on Earth revisited in light of noble gas data obtained from comet 67P/Churyumov-Gerasimenko

Figure 2

Cometary Kr within the Earth’s atmosphere. The Kr isotopic composition of the atmosphere is shown to lie intermediate between the chondritic Q component33 and the composition of comet 67 P/C-G31. The unique Kr isotopic composition of the atmosphere could therefore be the result of mixing between chondritic and cometary endmembers (black dashed line). The addition of cometary Kr to an original solar atmosphere32 (orange line) fails to reproduce the modern atmosphere. AVCC-Kr11 is also displayed. Error bars are 1σ.

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