| 講演要旨(和文) | | 養老断層の深度100mまでを対象にP波・S波の反射法を実施した.発振点間隔0.5m,受振点間隔1mとし,震源として,ドロップヒッタとカケヤによる板たたきを使用した.P波,S波両断面で,断層下盤で深度40m,上盤で深度10m,落差30mの撓曲をイメージングすることができた. |
|
|
| | 講演要旨(英文) | | We conducted ultra shallow P and S-wave seismic reflection surveys across the Yoro fault to image its subsurface structure shallower than 100m depth. Shot interval is 0.5m and Receiver interval is 1m. The source is Weight drop and hammer strike. We could image the bottom of the upper Holocene, the top of the alluvial fan gravel, which is 40m deep in the fault hanging wall and 10m in foot wall and shows flexture of 30m displacement. |
|
|
|
| |
|