@article{oai:fit.repo.nii.ac.jp:00000796,
 author = {山口, 哲也 and 森山, 聡之 and 小川, 進 and 古賀, 俊生},
 journal = {福岡工業大学総合研究機構研究所所報},
 month = {Oct},
 note = {application/pdf, Orono-shima Island is a remote Island in the Tsushima Strait, it is 4.3km around. Since ancient times, it has been a landmark when crossing from the Korean Peninsula to Japanese archipelago via Tsushima Island and Iki Island. However, large-scale ruins and burial mounds are not known on Orono-shima Island until now. The author has conducted various surveys of Koro Island and found the possibility that this island was an important island in ancient times. As a result of ground survey, the author discovered a topography like keyhole tomb which is a characteristic Japanese burial mound, on the northern cape of the island. It could be up to 150m in size, one of the largest around Kyusyu Island. There is no burial mound comparable to this on a remote island in Japan. Therefore, we created a 3D image using a drone Laser and hand Laser surveying of this terrain and we compared the results with another keyhole tomb. We asked archaeologists to judge the results. He stated that this could be considered an artificial structure and that excavation would eventually be necessary. Therefore, we investigated in detail the sites that could be candidates for excavation. In addition, we analyzed the image of infrared radiation of Orono-shima Island took by Landsat8. In conclusion, it was speculated that this topography was the prototype of the oldest type of keyhole cairn tomb in Japan. The topography of the northern part of Orono-shima could be regaining the missing link between the cairn on the Korean Peninsula of the first century and the oldest type of keyhole cairn tomb in Japan of the third century., 論文(Atticle)},
 pages = {89--97},
 title = {小呂島の北部地形は前方後円墳の原型か？～ドローンによる空撮とLandsat８による画像解析から～},
 volume = {5},
 year = {2022}
}