Journal
GEOCHEMICAL JOURNAL
Volume 47, Issue 6, Pages 693-696Publisher
GEOCHEMICAL SOC JAPAN
DOI: 10.2343/geochemj.2.0253
Keywords
sampler; submarine spring; CFCs; SF6; Rishiri Island; groundwater age
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Funding
- Ministry of Education, Science, Sports and Culture, Japan [16681004, 19310007]
- Grants-in-Aid for Scientific Research [19310007, 16681004] Funding Source: KAKEN
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The design and operation of an in situ contamination-free sampler of submarine spring water for CFCs and SF6 analysis are described. The sampler consists of three parts: inlet, water pump, and sample bottle housing; all made from CFC and SF6 free materials. Samples from a submarine freshwater spring, discharging along the southwest coast of Rishiri Island, Japan, had CFC and SF6 ages of 1960-1970, which is consistent with previously reported H-3 ages. This suggests suitability of the sampler for sampling submarine springs without atmospheric and seawater contamination. Moreover, the device is suitable for the collection of water samples for assessment of geochemical tracers, such as major dissolved gases, isotopes, and inorganic solutes.
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