@article{oai:nipr.repo.nii.ac.jp:00003050,
 author = {Takigami, Yutaka and Yoshida, Masaru and Funaki, Minoru},
 journal = {Polar geoscience},
 month = {Oct},
 note = {P(論文), Two ^<40>Ar-^<39>Ar ages were obtained for dolerites from Sri Lanka which had been dated by the K-Ar method as 143-152 Ma. ^<40>Ar-^<39>Ar ages, which are more reliable than the K-Ar ages, are 160-170 Ma. These ages are important for constraining the scenario of break-up of Gondwana in the early Jurassic period.},
 pages = {176--182},
 title = {40Ar-39Ar ages of dolerite dykes from Sri Lanka},
 volume = {12},
 year = {1999}
}