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In order to investigate subsurface density structures with the highest precision, two major gravity databases and some unpublished data files, which cover Southwest Japan, are recompiled.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 |
| Publication status | Published - Jan 1 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 |
Other
| Other | Proceedings of the International Association of Geodesy, IAG 2003 |
|---|---|
| Country | Japan |
| City | Sapporo |
| Period | 6/30/03 → 7/11/03 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Computers in Earth Sciences
- Geophysics
Cite this
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
}
TY - GEN
T1 - A gravity database of southwest Japan
T2 - Application to Bouguer gravity imaging in Kyushu district, Southwest Japan
AU - Shichi, R.
AU - Yamamoto, A.
AU - Kudo, T.
AU - Murata, Y.
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.
PY - 2005/1/1
Y1 - 2005/1/1
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=84964034065&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84964034065&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84964034065
SN - 9783540240556
T3 - International Association of Geodesy Symposia
SP - 236
EP - 241
BT - A Window on the Future of Geodesy - Proceedings of the International Association of Geodesy
A2 - Sansò, Fernando
PB - Springer Verlag
ER -