Data reports: Chemical and isotopic compositions of hydrothermal fluids at snail, archaean, pika, and urashima sites in the Southern Mariana trough

Tomohiro Toki, Jun Ichiro Ishibashi, Takuroh Noguchi, Miki Tawata, Urumu Tsunogai, Toshiro Yamanaka, Kentaro Nakamura

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationSubseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept
PublisherSpringer Japan
Pages587-602
Number of pages16
ISBN (Print)9784431548652, 9784431548645
DOIs
Publication statusPublished - Jan 1 2015

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Keywords

  • Backarc spreading center
  • Geochemistry
  • Hydrothermal fluid
  • Iron TAIGA
  • Magmatic volatile
  • Southern Mariana

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Toki, T., Ishibashi, J. I., Noguchi, T., Tawata, M., Tsunogai, U., Yamanaka, T., & Nakamura, K. (2015). Data reports: Chemical and isotopic compositions of hydrothermal fluids at snail, archaean, pika, and urashima sites in the Southern Mariana trough. In Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept (pp. 587-602). Springer Japan. https://doi.org/10.1007/978-4-431-54865-2_45