Deep structure of the Yuzhno-Sakhalinsk mud volcano: Results of multidisciplinary seismic surveys |
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| Authors: | V. V. Zhigulev M. G. Gurinov V. V. Ershov |
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| Affiliation: | (1) Institute of Marine Geology and Geophysics, Far East Division, Russian Academy of Sciences, Yuzhno-Sakhalinsk, Russia |
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| Abstract: | The paper presents the results of multidisciplinary seismic surveys carried out by refraction and reflection methods for compressional and shear waves on Yuzhno-Sakhalinsk mud volcano. A large extinct (approximately 60–70 years ago) volcano was identified near the active volcano, and its structure was studied. It was found that the recognized intermediate fluid-bearing chambers correlate with the distinguished tectonic dislocations. A supposition was made that the mud volcanism is sequentially developed in the northeastern direction and related to the modern tectonics of the Central Sakhalin Fault. |
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| Keywords: | seismic survey reflected and refracted waves P- and S-waves mud volcano gryphons tectonic dislocations Sakhalin Island |
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