@article{oai:aue.repo.nii.ac.jp:00000689,
 author = {星, 博幸 and 岩野, 英樹 and 檀原, 徹},
 journal = {愛知教育大学研究報告. 自然科学},
 month = {Mar},
 note = {text, Zircon fission-track dating was carried out on an andesite flow of the Tsugu volcanic rocks, distributed in the eastern marginal area of the Miocene Setouchi volcanic belt. Applying the external detector method to internal surfaces of zircon (ED1 method), an early Middle Miocene age (15.7±0.6Ma) was determined. The result is in broad agreement with previous K-Ar ages and we therefore conclude that the Tsugu volcanic rocks were formed by volcanic activity at about 15Ma.},
 pages = {67--70},
 title = {設楽地域,津具火山岩類のフィッション・トラック年代測定},
 volume = {55},
 year = {2006}
}