3. 秋田駒ケ岳の地磁気および重力(II. 秋田駒ケ岳のなりたち)

概要

論文の詳細を見る
Aeromagnetic survey and gravimetric survey were performed over and around Akita-Komaga-take. Positive magnetic anomalies caused by each volcanic cone of Akita-Komaga-take, Eboshi-dake and Takakura-san were observed. Zarumori-san did not create an appreciable magnetic anomaly. Near Me-dake a small magnetic anomaly of negative sense was observed, and it surely concerned to the eruption of 1970. The existence of thermal material concerning this negative anomaly was estimated. From gravimetric data Akita-Komagatake is located in the central area of a positive anomaly which is related to irruptive rocks. In the western side of Akita-Komagatake weak negative magnetic anomaly was observed. It corresponds to negative gravity anomaly in northeastern side of Tazawa lake. These anomalies do not correspond to surface geology, so these may show influence of subterranean structure.
特定非営利活動法人日本火山学会の論文
1971-12-01