RESISTIVITY ANOMALIES OF IZU-OSHIMA VOLCANO REVEALED BY AIRBORNE VLF-EM SURVEY

被引：5

作者：

YUKUTAKE, T ^{[1
]}

MURAKAMI, Y ^{[1
]}

NAKAGAWA, I ^{[1
]}

YOKOYAMA, Y ^{[1
]}

HAMANO, Y ^{[1
]}

机构：

[1] GEOL SURVEY JAPAN,TSUKUBA,IBARAKI 305,JAPAN

来源：

JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY | 1990年 / 42卷 / 03期

关键词：

D O I：

10.5636/jgg.42.195

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Airborne VLF-EM and ground VLF-MT surveys were carried out to study the resistivity structure of Izu-Oshima volcano after its fissure eruptions in November 1986. Airborne VLF-EM surveys of Izu-Oshima volcano revealed that there are clear trends of alignment in the resistivity anomalies in many cases. A remarkable anomaly belt has been found to run along the fissures through which fountain eruptions occurred in November. Many of the anomaly belts are related to geological structures due to activity in historic times. However, there are some anomalies which do not clearly correlate with historical volcanism. The results of the ground VLF-MT measurements along three survey lines are consistent with the airborne survey, confirming the existence of low resistivity anomalies. -from Authors

引用

页码：195 / 210

页数：16

共 4 条

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[2] CHANGES IN THE ELECTRICAL-RESISTIVITY OF THE CENTRAL CONE, MIHARAYAMA, OF IZU-OSHIMA VOLCANO, ASSOCIATED WITH ITS ERUPTION IN NOVEMBER, 1986 [J].

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[3]

YUKUTAKE T, 1983, EARTHQUAKE PRED RES, V2, P83

[4]

YUKUTAKE T, 1985, INTENSIVE COMPREHENS

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