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| | Abstract | | The deep geometry of active faults and the mid-crustal detachment at the base of seismogenic layer is important for understanding active tectonic process and accessing the risk of destructive earthquakes. We investigated that multi-scale and multi-mode acquisition layout can be realized by the simultaneous data acquisition of regional refraction, low-fold wide-angle reflection and standard reflection survey for the several targets on the same seismic line optimized by the integration of different seismic sources and supplementary three-component digital accelerometers with broader frequency responses. The combination of telemetry and independent recording system provides the deployment of 100-200km long survey line across the area of land-marine transition zones with dense seismic array. In order to build the detailed basin-scale geophysical model, we developed a processing workflow based on the combined tomographic analysis of refraction, P-P and P-S reflection profile. Multi-component seismic reflection data using ocean-bottom cable with 4C MEMS sensors has presented imaging capabilities in P-S wave reflection profiling and Vp/Vs estimation for the delineation of volcanic stratigraphy in our study. |
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