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High-resolution aeromagnetic survey in the area of Arima-Takatsuki-Rokko active fault system; Arima Takatsuki Rokko katsudanso chiiki ni okeru komitsudo kuchu jiki tansa

Abstract

High-resolution aeromagnetic survey was conducted in December, 1995, over the area of Arima-Takatsuki-Rokko active fault system, where the 1995 Hyogo-South (Kobe) earthquake took place. Based on the surveyed data, the magnetic anomaly distribution in the Kei-Hanshin district was illustrated. Features of magnetic anomaly observed in it were discussed. Influence of artificial structures in the coastal zone of Kobe City was tried to be removed. Distinct magnetic anomaly observed in the center of Kyoto City was located at the southern part near Shijo-Karasuma. This was mainly affected by the artificial structure. A high magnetic anomaly with a long wave length was observed in the southern part of Kyoto. There was a high magnetic anomaly in an area surrounded by central cities of Nishinomiya-Toyonaka district. At the location where positive and negative magnetic anomalies were illustrated in NEDO`s map in the coastal zone of Kobe City, the anomaly pattern was clarified. The influence of artificial structure was approximated using a point dipole. The dipole was placed in each block having a magnetic anomaly. The parameter was determined by the inverse analysis, to remove the influence. Consequently, most of magnetic anomalies due to artificial structures could be removed. 6 figs.
Authors:
Nakatsuka, T; Okuma, S; Morijiri, R; Makino, M [1] 
  1. Geological Survey of Japan, Tsukuba (Japan)
Publication Date:
Oct 01, 1996
Product Type:
Miscellaneous
Report Number:
CONF-9610294-
Reference Number:
SCA: 150301; PA: NEDO-96:914751; EDB-97:072147; SN: 97001782494
Resource Relation:
Conference: 95. SEGJ conference, Butsuri tansa gakkai dai 95 kai (1996 nendo shuki) gakujutsu koenkai, Kyoto (Japan), 21-23 Oct 1996; Other Information: PBD: Oct 1996; Related Information: Is Part Of Proceedings of the 95th SEGJ Conference; PB: 344 p.; Butsuri tansa gakkai dai 95 kai (1996 nendo shuki) gakujutsu koenkai koen ronbunshu
Subject:
15 GEOTHERMAL ENERGY; MAGNETIC SURVEYS; AERIAL PROSPECTING; GEOLOGIC FAULTS; EARTHQUAKES; EXPERIMENTAL DATA; GEOMAGNETIC FIELD; MECHANICAL STRUCTURES
OSTI ID:
472645
Research Organizations:
Society of Exploration Geophysicists of Japan, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE97743637; TRN: 96:914751
Availability:
Available from The Society of Exploration Geophysicists of Japan, 2-18, Nakamagome 2-chome, Ota-ku, Tokyo, Japan; OSTI as DE97743637
Submitting Site:
NEDO
Size:
pp. 110-114
Announcement Date:

Citation Formats

Nakatsuka, T, Okuma, S, Morijiri, R, and Makino, M. High-resolution aeromagnetic survey in the area of Arima-Takatsuki-Rokko active fault system; Arima Takatsuki Rokko katsudanso chiiki ni okeru komitsudo kuchu jiki tansa. Japan: N. p., 1996. Web.
Nakatsuka, T, Okuma, S, Morijiri, R, & Makino, M. High-resolution aeromagnetic survey in the area of Arima-Takatsuki-Rokko active fault system; Arima Takatsuki Rokko katsudanso chiiki ni okeru komitsudo kuchu jiki tansa. Japan.
Nakatsuka, T, Okuma, S, Morijiri, R, and Makino, M. 1996. "High-resolution aeromagnetic survey in the area of Arima-Takatsuki-Rokko active fault system; Arima Takatsuki Rokko katsudanso chiiki ni okeru komitsudo kuchu jiki tansa." Japan.
@misc{etde_472645,
title = {High-resolution aeromagnetic survey in the area of Arima-Takatsuki-Rokko active fault system; Arima Takatsuki Rokko katsudanso chiiki ni okeru komitsudo kuchu jiki tansa}
author = {Nakatsuka, T, Okuma, S, Morijiri, R, and Makino, M}
abstractNote = {High-resolution aeromagnetic survey was conducted in December, 1995, over the area of Arima-Takatsuki-Rokko active fault system, where the 1995 Hyogo-South (Kobe) earthquake took place. Based on the surveyed data, the magnetic anomaly distribution in the Kei-Hanshin district was illustrated. Features of magnetic anomaly observed in it were discussed. Influence of artificial structures in the coastal zone of Kobe City was tried to be removed. Distinct magnetic anomaly observed in the center of Kyoto City was located at the southern part near Shijo-Karasuma. This was mainly affected by the artificial structure. A high magnetic anomaly with a long wave length was observed in the southern part of Kyoto. There was a high magnetic anomaly in an area surrounded by central cities of Nishinomiya-Toyonaka district. At the location where positive and negative magnetic anomalies were illustrated in NEDO`s map in the coastal zone of Kobe City, the anomaly pattern was clarified. The influence of artificial structure was approximated using a point dipole. The dipole was placed in each block having a magnetic anomaly. The parameter was determined by the inverse analysis, to remove the influence. Consequently, most of magnetic anomalies due to artificial structures could be removed. 6 figs.}
place = {Japan}
year = {1996}
month = {Oct}
}