Ion microprobe Pb-Pb dating of carbonado, polycrystalline diamond

Precambrian Research

Volumn 113, Issue 1-2, 2002, Pages 155-168

  Sano, Yuji ^a,b   Yokochi, Reika ^a,b   Terada, Kentaro ^b   Chaves, Mario L ^c   Ozima, Minoru ^a  

^a UNIVERSITY OF TOKYO   (Japan)

^b HIROSHIMA UNIVERSITY   (Japan)

^c FEDERAL UNIVERSITY OF MINAS GERAIS   (Brazil)

Author keywords

Carbonado; Pb Pb age; Polycrystalline diamond; Zircon

Indexed keywords

CRYSTALLIN; DIAMOND; LEAD; URANIUM; ZIRCONIUM;

DIAMOND; LEAD-LEAD DATING; PROTEROZOIC;

ARCHAEAN; ARTICLE; BRAZIL; CHEMICAL COMPOSITION; EXTRACTION; GEOCHEMICAL ANALYSIS; PROTEROZOIC; SOUTH AMERICA;

BRAZIL;

EID: 0037006103     PISSN: 03019268     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0301-9268(01)00208-X     Document Type: Article

References (39)

1. 15N determinations
2. Diamonds from the Espinhaco Range (Minas Gerais, Brazil) and their redistribution through the geologic record
3. 39Ar analysis
4. U-Pb geochronology of zircons from lunar breccia 73217 using a sensitive high mass-resolution ion microprobe
5. The geologic evolution of the ancient granite-greenstone terrane of Central-Southern Bahia, Brazil
6. Radiation induced diamond formation in uranium-rich carbonaceous materials
7. Microstructural observations of polycrystalline diamond: A contribution to the carbonado conundrum
8. Late Proterozoic mafic dykes swarm from the Espinhaco Range (Minas Gerais, Brazil): Geochemistry and tectonic setting
9. Imperfections in type I and type II diamonds
10. A possible impact origin for the Bangui magnetic anomaly (Central Africa)
11. Regional and local variation in the characteristics of diamonds from some Southern African kimberlites
12. 206Pb and U/Pb age determinations with a 10 μm spatial resolution using the ion microprobe mass analyser (IMMA)
13. Outline of Precambrian chronology in lands bordering the South Atlantic, exclusive of Brazil
14. Chemical properties of Central African carbonado and its genetic implications
15. Genesis of carbonado: Polycrystalline aggregate of diamond
16. Markers of the last stages of the Paleoproterozoic collision; evidence for a 2 Ga continent involving circum-South Atlantic provinces
17. Radioation-induced diamond crystallization: Origin of carbonados and its implications on meteorite nano-diamonds
18. Constraints from noble gas contents on the origin of carbonado diamonds
19. Ion microprobe U-Pb dating of apatite
20. Palaeoproterozoic thermal events recorded in the ∼4.0 Ga Acasta gneiss, Canada: Evidence from SHRIMP U-Pb dating of apatite and zircon
21. Origin of life from apatite dating
22. Ion microprobe U-Th-Pb dating of Shergotty phosphates
23. Ion microprobe U-Pb zircon geochronology of the Hida gneiss: Finding of the oldest minerals in Japan
24. Carbonado: More clues to a common impact origin for samples from Brazil and the Central African Republic
25. The radial distribution of implanted and trapped He-4 in single diamond crystals and implications for the origin of carbonado
26. Carbonado; diamond aggregates from early impacts of crustal rocks
27. Approximation of terrestrial lead isotope evolution by a two-stage model
28. An outline of early Proterozoic crustal evolution in the Sao Fransisco craton, Brazil: A review
29. U-Th-Pb systematics in three Apollo 14 basalts and the problem of initial Pb in lunar rocks
30. The Brasiliano Sao Francisco Craton revisited (Central Brazil)
31. Carbonado: A microstructural study
32. Carbonado: Natural poly-crystalline diamond
33. Proterozoic rifting and closure, SE border of the Sao Francisco Craton, Brazil
34. Isotopic composition of diamond and carbonado crystals
35. 2O systems