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dc.contributor.authorSawasdee Yordkayhunen_US
dc.contributor.authorPreeya Sreesuwanen_US
dc.contributor.authorKamhaeng Wattanasenen_US
dc.date.accessioned2019-05-07T09:57:20Z-
dc.date.available2019-05-07T09:57:20Z-
dc.date.issued2016en_US
dc.identifier.issn0125-2526en_US
dc.identifier.urihttp://it.science.cmu.ac.th/ejournal/dl.php?journal_id=7609en_US
dc.identifier.urihttp://cmuir.cmu.ac.th/jspui/handle/6653943832/63819-
dc.description.abstractDetailed fault mapping and characterization are important for seismic hazard assessment. The Khlong Marui Fault Zone (KMFZ) is a major active strike-slip fault system in southern Thailand. It extends in a southwest-northeast direction from Phuket towards Surat Thani province. Although the general fault system can be identified from surface observations, investigation of the fault zone in Surat Thani province is challenging because the surface expression is not obvious and thick sediments cover the area. Therefore, shallow seismic reflection profiles were acquired in the Khiriratnikhom district, Surat Thani province. The aims of this study were to characterize the subsurface geological structures in the vicinity of the fault zone. For the seismic data analysis, conventional data processing such as data editing, static correction and frequency filtering are effective in enhancing signal to noise ratio of stacked section. However, detailed geological information at shallow levels in the subsurface are not well imaged due to the effects of data acquisition and processing. To address this limitation, seismic reflection and shear wave velocity (Vs) profiles were obtained from multichannel analysis of surface waves (MASW) and are jointly interpreted. The results show a sequence of subsurface boundaries extending from the surface to a depth of about 250 m. The variations in seismic velocities and vertical offset of the main horizon are the fault signature observed on seismic sections and in the shear wave velocity fields. The results coincide well with the fault strike obtained from a previous geophysical interpretation. This finding suggests the possibility of ongoing activity of the KMFZ.en_US
dc.languageEngen_US
dc.publisherScience Faculty of Chiang Mai Universityen_US
dc.titleCharacterization of Khlong Marui Fault Zone using seismic reflection and shear-wave velocity profiles: Case study in Khiriratnikhom district, Surat Thani province, southern Thailanden_US
dc.typeบทความวารสารen_US
article.title.sourcetitleChiang Mai Journal of Scienceen_US
article.volume43en_US
article.stream.affiliationsDepartment of Physics, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.en_US
article.stream.affiliationsGeophysics Research Center, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.en_US
Appears in Collections:CMUL: Journal Articles

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