Gamma ray doses in water around sea floor hydrothermal area in the Southern Mariana trough

Shin Toyoda; Debabrata Banerjee; Hidenori Kumagai; Junichi Miyazaki; Jun Ichiro Ishibashi; Nobutatsu Mochizuki; Shigeaki Kojima

doi:10.1007/978-4-431-54865-2_46

Gamma ray doses in water around sea floor hydrothermal area in the Southern Mariana trough

Shin Toyoda, Debabrata Banerjee, Hidenori Kumagai, Junichi Miyazaki, Jun Ichiro Ishibashi, Nobutatsu Mochizuki, Shigeaki Kojima

Material Science of Solar Planets

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

The dose rates in sea water in the Southern Mariana Trough sea floor hydrothermal area were investigated. The dose rate in sea water was less than detection limit (about 0.1 mGy/year) near the sea surface while it was around 2 mGy/year at the sea floor of hydrothermal area, where those levels of dose rates will be negligible for ESR (electron spin resonance) dating of barite of sulfide deposits. During the dive by a submarine vehicle, there were three locations at which the level of dose rate increases more than ten times as much as the usual level. One was very close to a hydrothermal vent, but no hydrothermal activities were found near the other locations.

Original language	English
Title of host publication	Subseafloor Biosphere Linked to Hydrothermal Systems
Subtitle of host publication	TAIGA Concept
Publisher	Springer Japan
Pages	603-606
Number of pages	4
ISBN (Electronic)	9784431548652
ISBN (Print)	9784431548645
DOIs	https://doi.org/10.1007/978-4-431-54865-2_46
Publication status	Published - Jan 1 2015

All Science Journal Classification (ASJC) codes

Earth and Planetary Sciences(all)

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10.1007/978-4-431-54865-2_46

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Gamma ray doses in water around sea floor hydrothermal area in the Southern Mariana trough. / Toyoda, Shin; Banerjee, Debabrata; Kumagai, Hidenori; Miyazaki, Junichi; Ishibashi, Jun Ichiro; Mochizuki, Nobutatsu; Kojima, Shigeaki.

Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept. Springer Japan, 2015. p. 603-606.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

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AU - Ishibashi, Jun Ichiro

AU - Mochizuki, Nobutatsu

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