A gravity database of southwest Japan: Application to Bouguer gravity imaging in Kyushu district, Southwest Japan

R. Shichi; A. Yamamoto; T. Kudo; Y. Murata; K. Nawa; M. Komazawa; M. Nakada; H. Miyamachi; H. Komuro; Y. Fukuda; T. Higashi; Y. Yusa; I. Nakagawa; H. Watanabe; J. Oikawa; S. Kobayashi; I. Ohno

doi:10.1007/3-540-27432-4_40

A gravity database of southwest Japan: Application to Bouguer gravity imaging in Kyushu district, Southwest Japan

R. Shichi, A. Yamamoto, T. Kudo, Y. Murata, K. Nawa, M. Komazawa, M. Nakada, H. Miyamachi, H. Komuro, Y. Fukuda, T. Higashi, Y. Yusa, I. Nakagawa, H. Watanabe, J. Oikawa, S. Kobayashi, I. Ohno

Dynamics, Structure and Evolution of the Earth and Planets

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In order to investigate subsurface density structures with the highest precision, two major gravity databases and some unpublished data files, which cover Southwest Japan, are recompiled. This paper presents some examples of the detailed gravity anomaly maps in Kyushu District, southwest Japan. These maps indicate various fine subsurface structures, which may arose with tectonic movements and/or volcanic activities of this region. With an aid of geological and topographical information, we discussed relationships between characteristic patterns of the detailed gravity anomalies and subsurface structures in this region. The most conspicuous feature is an existence of a steep horizontal gradient zone of gravity anomalies running through the Aso Caldera in the ENE-WSW direction. Although the location of the westward extension of the Median Tectonic Line (MTL) in this region is still debatable, this zone seems to be the westernmost part of MTL.

Original language	English
Title of host publication	A Window on the Future of Geodesy - Proceedings of the International Association of Geodesy
Editors	Fernando Sansò
Publisher	Springer Verlag
Pages	236-241
Number of pages	6
ISBN (Print)	9783540240556
DOIs	https://doi.org/10.1007/3-540-27432-4_40
Publication status	Published - 2005
Event	Proceedings of the International Association of Geodesy, IAG 2003 - Sapporo, Japan Duration: Jun 30 2003 → Jul 11 2003

Publication series

Name	International Association of Geodesy Symposia
Volume	128
ISSN (Print)	0939-9585
ISSN (Electronic)	2197-9359

Other

Other	Proceedings of the International Association of Geodesy, IAG 2003
Country	Japan
City	Sapporo
Period	6/30/03 → 7/11/03

All Science Journal Classification (ASJC) codes

Computers in Earth Sciences
Geophysics

Access to Document

10.1007/3-540-27432-4_40

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Shichi, R., Yamamoto, A., Kudo, T., Murata, Y., Nawa, K., Komazawa, M., Nakada, M., Miyamachi, H., Komuro, H., Fukuda, Y., Higashi, T., Yusa, Y., Nakagawa, I., Watanabe, H., Oikawa, J., Kobayashi, S., & Ohno, I. (2005). A gravity database of southwest Japan: Application to Bouguer gravity imaging in Kyushu district, Southwest Japan. In F. Sansò (Ed.), A Window on the Future of Geodesy - Proceedings of the International Association of Geodesy (pp. 236-241). (International Association of Geodesy Symposia; Vol. 128). Springer Verlag. https://doi.org/10.1007/3-540-27432-4_40

A gravity database of southwest Japan : Application to Bouguer gravity imaging in Kyushu district, Southwest Japan. / Shichi, R.; Yamamoto, A.; Kudo, T.; Murata, Y.; Nawa, K.; Komazawa, M.; Nakada, M.; Miyamachi, H.; Komuro, H.; Fukuda, Y.; Higashi, T.; Yusa, Y.; Nakagawa, I.; Watanabe, H.; Oikawa, J.; Kobayashi, S.; Ohno, I.

A Window on the Future of Geodesy - Proceedings of the International Association of Geodesy. ed. / Fernando Sansò. Springer Verlag, 2005. p. 236-241 (International Association of Geodesy Symposia; Vol. 128).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Shichi, R, Yamamoto, A, Kudo, T, Murata, Y, Nawa, K, Komazawa, M, Nakada, M, Miyamachi, H, Komuro, H, Fukuda, Y, Higashi, T, Yusa, Y, Nakagawa, I, Watanabe, H, Oikawa, J, Kobayashi, S & Ohno, I 2005, A gravity database of southwest Japan: Application to Bouguer gravity imaging in Kyushu district, Southwest Japan. in F Sansò (ed.), A Window on the Future of Geodesy - Proceedings of the International Association of Geodesy. International Association of Geodesy Symposia, vol. 128, Springer Verlag, pp. 236-241, Proceedings of the International Association of Geodesy, IAG 2003, Sapporo, Japan, 6/30/03. https://doi.org/10.1007/3-540-27432-4_40

Shichi R, Yamamoto A, Kudo T, Murata Y, Nawa K, Komazawa M et al. A gravity database of southwest Japan: Application to Bouguer gravity imaging in Kyushu district, Southwest Japan. In Sansò F, editor, A Window on the Future of Geodesy - Proceedings of the International Association of Geodesy. Springer Verlag. 2005. p. 236-241. (International Association of Geodesy Symposia). https://doi.org/10.1007/3-540-27432-4_40

Shichi, R. ; Yamamoto, A. ; Kudo, T. ; Murata, Y. ; Nawa, K. ; Komazawa, M. ; Nakada, M. ; Miyamachi, H. ; Komuro, H. ; Fukuda, Y. ; Higashi, T. ; Yusa, Y. ; Nakagawa, I. ; Watanabe, H. ; Oikawa, J. ; Kobayashi, S. ; Ohno, I. / A gravity database of southwest Japan : Application to Bouguer gravity imaging in Kyushu district, Southwest Japan. A Window on the Future of Geodesy - Proceedings of the International Association of Geodesy. editor / Fernando Sansò. Springer Verlag, 2005. pp. 236-241 (International Association of Geodesy Symposia).

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abstract = "In order to investigate subsurface density structures with the highest precision, two major gravity databases and some unpublished data files, which cover Southwest Japan, are recompiled. This paper presents some examples of the detailed gravity anomaly maps in Kyushu District, southwest Japan. These maps indicate various fine subsurface structures, which may arose with tectonic movements and/or volcanic activities of this region. With an aid of geological and topographical information, we discussed relationships between characteristic patterns of the detailed gravity anomalies and subsurface structures in this region. The most conspicuous feature is an existence of a steep horizontal gradient zone of gravity anomalies running through the Aso Caldera in the ENE-WSW direction. Although the location of the westward extension of the Median Tectonic Line (MTL) in this region is still debatable, this zone seems to be the westernmost part of MTL.",

author = "R. Shichi and A. Yamamoto and T. Kudo and Y. Murata and K. Nawa and M. Komazawa and M. Nakada and H. Miyamachi and H. Komuro and Y. Fukuda and T. Higashi and Y. Yusa and I. Nakagawa and H. Watanabe and J. Oikawa and S. Kobayashi and I. Ohno",

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AU - Nawa, K.

AU - Komazawa, M.

AU - Nakada, M.

AU - Miyamachi, H.

AU - Komuro, H.

AU - Fukuda, Y.

AU - Higashi, T.

AU - Yusa, Y.

AU - Nakagawa, I.

AU - Watanabe, H.

AU - Oikawa, J.

AU - Kobayashi, S.

AU - Ohno, I.

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AB - In order to investigate subsurface density structures with the highest precision, two major gravity databases and some unpublished data files, which cover Southwest Japan, are recompiled. This paper presents some examples of the detailed gravity anomaly maps in Kyushu District, southwest Japan. These maps indicate various fine subsurface structures, which may arose with tectonic movements and/or volcanic activities of this region. With an aid of geological and topographical information, we discussed relationships between characteristic patterns of the detailed gravity anomalies and subsurface structures in this region. The most conspicuous feature is an existence of a steep horizontal gradient zone of gravity anomalies running through the Aso Caldera in the ENE-WSW direction. Although the location of the westward extension of the Median Tectonic Line (MTL) in this region is still debatable, this zone seems to be the westernmost part of MTL.

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