Publications by authors named "Naoko Fujikawa"
Uranium-Lead Systematics of Lunar Basaltic Meteorite Northwest Africa 2977.
Mass Spectrom (Tokyo)
February 2023
Article Synopsis
- * An ion microprobe analysis revealed that the majority of analyzed phosphates indicate a U-Pb isochron age of 3.15±0.12 billion years, which aligns with previous dating results from isotopic studies.
- * The study found no notable age differences between the phosphates in the shock melt vein and the host rock, while presenting evidence of intense shock metamorphism and a rapid cooling rate exceeding 140 K/s.
Four new abietane diterpenoids (1-4), a new 9(10→20)-abeo-abietane diterpenoid (5), and a new sesquiterpene pyridine alkaloid (6) were isolated from the roots of Euonymus lutchuensis along with 19 known compounds. The structures of the new compounds were elucidated by interpretation of the spectroscopic data.
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