2024-03-28T17:30:03Z
https://repository.dl.itc.u-tokyo.ac.jp/oai
oai:repository.dl.itc.u-tokyo.ac.jp:00032487
2022-12-19T05:37:54Z
80:4535:4587:4595
9:504:4538:4589:4596
High-Resolution P-wave Seismic Reflection Imaging of the Yoro Active Thrust : 2004 Shizu Profile
養老断層のP波浅層反射法地震探査 : 2004年志津測線
石山, 達也
124490
佐藤, 比呂志
124491
戸田, 茂
124492
中西, 利典
124493
松多, 信尚
124494
杉戸, 信彦
124495
堤, 浩之
124496
岡田, 篤正
124497
小池, 太郎
124498
今村, 朋裕
124499
服部, 泰久
124500
鈴木, 規眞
124501
天野, 桂吾
124502
加藤, 義人
124503
河合, 陽平
124504
高木, 啓司
124505
51.1
active fault
Yoro fault
seismic reflection profile
subsurface structure
central Japan
application/pdf
We present new, high-resolution seismic reflection data (2004 Shizu profile) acquired across the forelimb of the Yoro basement-involved fold to further image its subsurface geometry. A seismic source (mini-vibrator) and 180-channel digital telemetry recording system were used in an off-end configuration with the nearest receiver adjacent to the source to record seismic waves from deeper reflection points. A 10-m source and geophone spacing give a 5-m CMP (common midpoint) spacing on the final section. The nominal CMP stacking fold had 90 traces. We also suppressed coherent noise by repeating source points 7-10 times. After data processing including surface-consistent statics, velocity analysis, normal moveout (NMO) correction, residual statics, CMP stack, and migration, the section was finally depth-converted using of stacking velocities. Reflectors imaged on the seismic profile illuminate growth strata on the forelimb of the Yoro basement-involved fold, providing insights into the kinematic solution of the underlying active thrust.
departmental bulletin paper
地震研究所
2007
application/pdf
地震研究所彙報
1
82
65
74
AN00162258
00408972
https://repository.dl.itc.u-tokyo.ac.jp/record/32487/files/IHO82108.pdf
jpn