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Seismic reflection survey of the Uemachi fault in Osaka Prefecture; Osaka Uemachi danso no hanshaho danseiha tansa

Abstract

Reflection survey is conducted using three traverse lines in Sakai City for confirming the presence of a southward stretch of the Uemachi fault underground along the western periphery of the Uemachi terrace, Osaka, and for elucidating its connection to the Sakamoto fault distributed near Izumi. Another reflection survey is conducted in the bed of Kanzaki river, Osaka, for the confirmation of its connection to the Nembutsuji-zan fault in Senri hillock. It is estimated on the basis of boring data that there exists another flexural structure approximately 3km south of the flexural structure whose presence is confirmed by the Sakai second traverse line. Accordingly, possibilities are high that the southward stretch of the Uemachi fault connects to the Sakamoto fault. The confirmation by the Kanzaki river traverse line of the flexural structure again confirms the continuity between the Uemachi fault and Nembutsuji-zan fault. The above-said findings enable an inference that the three faults of Nembutsuji-zan, Uemachi, and Sakamoto constitute a chain of active faults. Furthermore, there exists an active fault to the south of the Sakamoto fault, which zigzags to the south on the right-hand side as far as the south of the Kumeda pond. Accordingly, the Uemachi fault system as  More>>
Authors:
Sugiyama, Y; [1]  Yoshizawa, M; Hirooka, S; [2]  Yokota, H; Ito, S; [3]  Hayashi, K; Aizawa, H
  1. Geological Survey of Japan, Tsukuba (Japan)
  2. Nikko Exploration and Development Co. Ltd., Tokyo (Japan)
  3. Hanshin Consultant Co., Osaka (Japan)
Publication Date:
May 27, 1997
Product Type:
Conference
Report Number:
CONF-9705167-
Reference Number:
SCA: 440700; 580000; PA: NEDO-97:912222; EDB-97:120317; SN: 97001846514
Resource Relation:
Conference: 96. SEGJ conference, Butsuri tansa gakkai dai 96 kai (1997 nendo shunki) gakujutsu koenkai, Tokyo (Japan), 27-29 May 1997; Other Information: PBD: 27 May 1997; Related Information: Is Part Of Proceeding of the 96th (spring, fiscal 1997) SEGJ Conference; PB: 502 p.; Butsuri tansa gakkai dai 96 kai (1997 nendo shunki) gakujutsu koenkai koen ronbunshu
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 58 GEOSCIENCES; GEOLOGIC FAULTS; MAGMATISM; SEISMIC SURVEYS; GEOMORPHOLOGY; REFLECTION; POSITIONING; GEODESICS; CORRELATIONS; GROUND UPLIFT; GROUND SUBSIDENCE; DRILLING; BOREHOLES; LENGTH
OSTI ID:
522623
Research Organizations:
Society of Exploration Geophysicists of Japan, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE97770262; TRN: 97:912222
Availability:
Available from The Society of Exploration Geophysicists of Japan, 2-18, Nakamagome 2-chome, Ota-ku, Tokyo, Japan; OSTI as DE97770262
Submitting Site:
NEDO
Size:
pp. 98-102
Announcement Date:

Citation Formats

Sugiyama, Y, Yoshizawa, M, Hirooka, S, Yokota, H, Ito, S, Hayashi, K, and Aizawa, H. Seismic reflection survey of the Uemachi fault in Osaka Prefecture; Osaka Uemachi danso no hanshaho danseiha tansa. Japan: N. p., 1997. Web.
Sugiyama, Y, Yoshizawa, M, Hirooka, S, Yokota, H, Ito, S, Hayashi, K, & Aizawa, H. Seismic reflection survey of the Uemachi fault in Osaka Prefecture; Osaka Uemachi danso no hanshaho danseiha tansa. Japan.
Sugiyama, Y, Yoshizawa, M, Hirooka, S, Yokota, H, Ito, S, Hayashi, K, and Aizawa, H. 1997. "Seismic reflection survey of the Uemachi fault in Osaka Prefecture; Osaka Uemachi danso no hanshaho danseiha tansa." Japan.
@misc{etde_522623,
title = {Seismic reflection survey of the Uemachi fault in Osaka Prefecture; Osaka Uemachi danso no hanshaho danseiha tansa}
author = {Sugiyama, Y, Yoshizawa, M, Hirooka, S, Yokota, H, Ito, S, Hayashi, K, and Aizawa, H}
abstractNote = {Reflection survey is conducted using three traverse lines in Sakai City for confirming the presence of a southward stretch of the Uemachi fault underground along the western periphery of the Uemachi terrace, Osaka, and for elucidating its connection to the Sakamoto fault distributed near Izumi. Another reflection survey is conducted in the bed of Kanzaki river, Osaka, for the confirmation of its connection to the Nembutsuji-zan fault in Senri hillock. It is estimated on the basis of boring data that there exists another flexural structure approximately 3km south of the flexural structure whose presence is confirmed by the Sakai second traverse line. Accordingly, possibilities are high that the southward stretch of the Uemachi fault connects to the Sakamoto fault. The confirmation by the Kanzaki river traverse line of the flexural structure again confirms the continuity between the Uemachi fault and Nembutsuji-zan fault. The above-said findings enable an inference that the three faults of Nembutsuji-zan, Uemachi, and Sakamoto constitute a chain of active faults. Furthermore, there exists an active fault to the south of the Sakamoto fault, which zigzags to the south on the right-hand side as far as the south of the Kumeda pond. Accordingly, the Uemachi fault system as a whole spans approximately 43km from the northern end of the Nembutsuji-zan fault as far as the south of the Kumeda pond. 5 refs., 6 figs.}
place = {Japan}
year = {1997}
month = {May}
}