@article{oai:nagoya.repo.nii.ac.jp:00001811,
 author = {萩田, 直子 and HAGITA, Naoko and 足立, 守 and ADACHI, Mamoru and 志知, 龍一 and SHICHI, Ryuichi},
 journal = {名古屋大学博物館報告},
 month = {Mar},
 note = {We have newly obtained 2,655 gravity data from a dense gravity survey in an area around the Yoro Mountains, central Japan (Lat. 34°50', Long. 136°25'-136°55'). A new Bouguer anomaly map, drawn from a total of 4,028 gravity data including our new 2,655 data, shows a steep gravity gradient zone of about 10 mgal/km along the eastern slope of the Yoro Mountains. This is one of the steepest gravity gradient zones in the Japanese Islands. The steep gravity gradient zone corresponds to the Yoro fault that forms a clear lineament as the boundary line between the Yoro Mountains and the Nobi Plain. The steep gravity gradient zone does not form a straight line but slightly turns in the middle of the Yoro Mountains. A number of minor faults are observed around the turning point of the steep gravity gradient. We made Bouguer anomaly profiles along the three cross-sections across the Yoro Mountains on the north, middle (the turning point of the steep gravity gradient) and south of them. We inferred the subsurface structure of the Yoro fault by applying the two-dimensional Talwani's method to the profiles. As a result, we estimated the depth of the Yoro fault to be about 2,000 m and the gradient of the fault plane to be over 60°. Comparing the inferred subsurface structures and the geological and topographical features around the Yoro Mountains, we have concluded that the Yoro fault is not one continuous straight fault, but is composed of two faults arranges en echelon., 国立情報学研究所で電子化したコンテンツを使用している。},
 pages = {43--89},
 title = {<原著論文>重力異常からみた養老断層近傍の地下構造},
 volume = {16},
 year = {2001}
}