Tectonic pumping: earthquake-induced chemical flux detected in situ by a submarine cable experiment in Sagami Bay, Japan
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概要
- 論文の詳細を見る
We successfully deployed an in situ automatic chemical analyzer sensitive to manganese (Mn) in seawater for a period of 81 days for the first time on the deep seafloor of Sagami Bay along a convergent plate boundary south of Japan. The in situ Mn analyzer (GAMOS-IV) was connected to a submarine cable as a means to supply power and to relay real time data. During the observation period from April 5 till June 25, 2006, the amount of measured Mn was seen to increase abruptly up to 10 times that of the background level only on April 21, probably triggered by a M5.8 earthquake which occurred ∼7 km south-southwest of the observation site. This study demonstrates the suitability of submarine cables for the long-term geochemical monitoring of deep sea environments.(Communicated by Taroh MATSUNO, M.J.A.)
- 日本学士院の論文
著者
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Asakawa Kenichi
Japan Agency For Marine-earth Sci. And Technol. (jamstec)
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Mitsuzawa Kyohiko
Japan Agency For Marine-earth Sci. And Technol. (jamstec)
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Okamura Kei
Center For Advanced Marine Core Research Kochi University
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Gamo T
Univ. Tokyo Tokyo Jpn
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Gamo Toshitaka
Ocean Research Institute The University Of Tokyo
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Gamo Toshitaka
Ocean Research Institute (ORI), The University of Tokyo
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MITSUZAWA Kyohiko
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
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