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Receiver function images of the central Chugoku region in the Japanese islands using Hi-net data

Urheber*innen

Ramesh,  D.S.
External Organizations;

Wakatsu,  H. K.
External Organizations;

Watada,  S.
External Organizations;

/persons/resource/yuan

Yuan,  Xiaohui
2.4 Seismology, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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232864.pdf
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Zitation

Ramesh, D., Wakatsu, H. K., Watada, S., Yuan, X. (2005): Receiver function images of the central Chugoku region in the Japanese islands using Hi-net data. - Earth Planets and Space, 57, 4, 271-280.
https://doi.org/10.1186/BF03352563


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_232864
Zusammenfassung
Crustal configuration of the central Chugoku region with disposition of the Philippine Sea Plate (PHS) in this area are investigated through the receiver function approach using short-period Hi-net data. Images of the upper mantle discontinuities are also obtained. Restituted short-period receiver functions bring out discernible variations in average composition of the crust and its thickness in the study region. The Vp/Vs values n the study area are generally high, reaching values in excess of 1.85 at a few places. The central part of the study region subsurface structure. Migrated receiver function images, both Ps and Pps images, unambiguously trace the NW from its low dip disposition in the southeast. An excellent correlation of the subducting PHS with the hypocenters can indeed detect presence of the global 410 km and 660 km discontinuities and map their disposition reasonably anti-correlated fashion on expected lines of Clapeyron slope predictions induced by subduction of the Pacific plate (PAC) beneath Japanese islands, though PAC itself is feebly traced but shows good correlation with slab seismicity.