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Title :Chemical and isotopic compositions of hydrothermal fluids at Snail, Archaean, Pika, and Urashima sites in the southern Mariana Trough
Authors :Toki, Tomohiro
Ishibashi, Jun-ichiro
Noguchi, Takuroh
Tawata, Miki
Tsunogai, Urumu
Yamanaka, Toshiro
Nakamura, Kentaro
Issue Date :10-Jan-2015
Abstract :Hydrothermal fluids were collected from five hydrothermal fields around the Southern Mariana Trough backarc spreading center for chemical and isotopic analyses. Yamanaka site was interpreted as inactive, so we present results from Snail, Archaean, Pika and Urashima sites. The slightly low pH and negative alkalinity suggests a little bit input of magmatic volatiles, supported by high CO2 concentrations. Consequently low pH would lead to the hydrothermal fluids rich in Fe compared to the MOR hydrothermal fluids.
URL :https://doi.org/10.1007/978-4-431-54865-2_45
Type Local :単行書の章
ISBN :978-4-431-54864-5
Publisher :Springer Japan
URI :http://hdl.handle.net/20.500.12000/37665
Citation :Subseafloor Biosphere Linked to Hydrothermal Systems p.587 -602
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Science)

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