Journal
ASTROPHYSICS AND SPACE SCIENCE
Volume 365, Issue 7, Pages -Publisher
SPRINGER
DOI: 10.1007/s10509-020-03845-y
Keywords
Ordinary chondrites; Chondritic metal; Noble gases; Nitrogen
Categories
Funding
- Department of Space, Government of India
Ask authors/readers for more resources
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.N-15 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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available