Magnetization structure of the Unzen volcano determined from blimp- borne magnetic survey data

Y. Honkura, M. Matsushima, N. Oshiman, Y. Sasai, M. Ohno, Y. Tanaka, T. Yamamoto, K. Ikeda, Y. Wakino

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Abstract

A blimp-borne magnetic survey was attempted over the Unzen Volcano which has been erupting since November 1990. Total intensity data could be interpreted in terms of inhomogeneous magnetizations of rocks forming respective mountains of the Unzen Volcano. The east of Mt. Fugen, which is the site of current lava extrusion, shows a magnetization of 2-3 A/m. This result would be an important piece of information for a study of volcanomagnetic effect, in particular in constructing a thermal demagnetization model. -from Authors

Original languageEnglish
Pages (from-to)231-236
Number of pages6
JournalJournal of Geomagnetism & Geoelectricity
Volume47
Issue number2
DOIs
Publication statusPublished - Jan 1 1995
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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