島根大学総合理工学部地球資源環境学教室
島根大学大学院総合理工学研究科地球資源環境学教室
島根大学
島根大学地球資源環境学研究報告

アクセス数 : 1421
ダウンロード数 : 326
島根大学地球資源環境学研究報告 Volume 19
published_at 2000-12-25

雲仙火山地域の重力異常

Gravity ammaly in the Unzen volcanic area,Kyushu,Japan
Shichi Ryuichi
Shitama Youji
full_text_file
c006019010.pdf ( 553 KB )
Descriptions
A Bouguer gravity anomaly map of the Unzen volcanic area founded on 590 gravity stations suggests the following volcanic structures:
1.The gravitational Unzen graben shows a linear north rim along the Chijiwa fault.However,the gravitational south rim does not coincide with the Futsu fault which is the topographical south rim of the Unzen graben.
2.The source of a low gravity anomaly in Tachibana-wan Bay has been considered as mass deficiency of caldera origin,but it may in fact be due to the emplacement of a large magma body.
Doi
https://doi.org/10.24568/3263