@article{oai:nagasaki-u.repo.nii.ac.jp:00020628,
 author = {高橋, 清 and 林, 正雄},
 issue = {2},
 journal = {長崎大学教養部紀要. 自然科学篇},
 month = {Jan},
 note = {A sample of quartz porphyry obtained from the boring well ID-01 (depth 192-194 m) near Sumiyoshi Shrine in Iki Island was examined by the fission track method. The fission track age of quartz porphyry measures 19.5 ± 0.8 Ma., 長崎大学教養部紀要. 自然科学篇. 1987, 27(2), p.33-36},
 pages = {33--36},
 title = {壱岐島の試錐 ID-01 (192-194 m) から得られた石英斑岩のフィッション・トラック年代},
 volume = {27},
 year = {1987}
}