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Volumn 271, Issue 5253, 1996, Pages 1260-1263

Radiation-induced diamond formation in uranium-rich carbonaceous materials

Author keywords

[No Author keywords available]

Indexed keywords

CARBONACEOUS MATERIAL; CARBONADO; DIAMOND; PRECAMBRIAN; RADIATION; URANIUM;

EID: 0029776953     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.271.5253.1260     Document Type: Article
Times cited : (36)

References (32)
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    • A V Fisenko et al., Proc. Lunar Planet Sci. Conf. 24, 483 (1993), A V. Fisenko, L. F. Semenova, A. B. Verkhovskii, Y A Shukolyukov, Astron. Lett 20, 56 (1994)
    • (1993) Proc. Lunar Planet Sci. Conf. , vol.24 , pp. 483
    • Fisenko, A.V.1
  • 8
    • 4243137099 scopus 로고    scopus 로고
    • note
    • 3) within pegmatitc veins 8 to 15 m thick (composed primarily of coarse-grained olivine and quartz) situated among gray gneisses Carburanium sometimes replaces uranitite crystals or forms a crust on their surface.
  • 9
    • 4243063786 scopus 로고    scopus 로고
    • note
    • 4 at 140° and 2200C, and HCl at 60°C, producing ∼1 mg of white residue.
  • 10
    • 4243169046 scopus 로고    scopus 로고
    • note
    • The polycrystalline aggregates were >95 atomic % C with trace amounts of Si, O, Fe, Al, Mg, and Ti The yttrium phosphate crystals exhibited trace amounts of Dy, Er, Gd, and Yb Carburanium is usually associated with rare-earth minerals such as zirtolite, xenotime, monazite, and uraninite.
  • 14
    • 4243137098 scopus 로고    scopus 로고
    • note
    • No graphite was observed in the residues, indicating its complete dissolution by the acid treatments.
  • 20
    • 36849137737 scopus 로고
    • _. J Appl Phys 36, 3645 (1965).
    • (1965) J Appl Phys , vol.36 , pp. 3645
  • 24
    • 0001500816 scopus 로고
    • J.A Nuth III, Astrophys. Space Sci. 139, 103 (1987); P Badziag, W S. Verwoerd, W. P. Ellis, N. R. Greiner, Nature 343, 244 (1990)
    • (1987) Astrophys. Space Sci. , vol.139 , pp. 103
    • Nuth III, J.A.1
  • 32
    • 4243128051 scopus 로고    scopus 로고
    • note
    • We thank Y. Shukolyukov and A. Fisenko for providing the carburanium acid residues and T. Bematowicz and R Walker for valuable comments.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.