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Subsurface Structure beneath the Southeast Coast of Lake Biwa, Central Japan, Revealed by Seismic Profiling
Widiyantoro S.a, Kobayashi Y.b
a Department of Geophysics and Meteorology, Institute of Technology Bandung (ITB), Indonesia
b Geophysical Institute, Kyoto University, Japan
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]An investigation of the shallow subsurface structure beneath a seismic line along the Yasu River, southeast coast of Lake Biwa, Central Japan, was carried out by the CDP (Common Depth Point) seismic profiling method. The survey location was intentionally chosen close to a deep drilling (900 m) site in order to correlate its results with the drilling log. The CDP profile reveals five “clear” horizons that can be correlated with the deep boring log. The velocity analysis was done by the CVS (Constant Velocity Stack) method and in order to confirm the results it was also done by the Tau-p velocity analysis. The latter analysis gives the velocity function to every analyzed site enabling us to construct a depth section. From the above results, it is recognized that there are gently dipping horizons toward Lake Biwa implying that the dipping motion has lasted through the period of sedimentation corresponding to the lower identified horizons. No fault was found below this investigation site. © 1992, The Seismological Society of Japan, The Volcanological Society of Japan, The Geodetic Society of Japan. All rights reserved.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Japan, Honshu, Lake Biwa[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.4294/jpe1952.40.573[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]