World Largest Outcrop of Pure Hydrate on the Seafloor

• Takeuchi Akira

  University of Toyama

• Zhang Jin

  University of Toyama

• Tsunogai Urumu

  Hokkaido University

• Kishimjoto Kiyoyuki

  Geological Survey of Japan/AIST

• Nishimura Kiyokazu

  Geological Survey of Japan/AIST

• Kitada Mitsugu

  Enoshima Aquarium

• Saegusa Shunsuke

  Hokkaido University

• Maekawa Takuya

  University of Toyama

• Minamino Yuri

  University of Toyama

• Oike Yuki

  University of Toyama

• Takaesu Morihumi

  Nippon Marine Enterprises Ltd.

Abstract

Sea bottom exposure of a sherbet hydrate was not unusual as famous as in the Hydrate Ridge along the Oregon coast of United States. During the NT06-19 cruise Leg2 of R/V Natsushima and Hyper-Dolphin at the sea area southwest off the Sadogashima Island in the central Japan Sea, a fantastic outcrop of exact crystalline methane hydrate was discovered and exhumation of the world's largest scale was observed by the submersible investigation. It means that tectonic activity and related methane plume of this area is so active that formed a mud volcano with a conduit topped by such an outcrop. It is expected that the formation mechanism of the solid methane hydrate layer will be distinctly clarified by synthesizing our analytical results of each field concerning the cruise.

Journal

• JAMSTEC Report of Research and Development

  JAMSTEC Report of Research and Development 5 (0), 61-63, 2007-03-01

  Japan Agency for Marine-Earth Science and Technology

Details

• CRID: 1390002184876193280
• NII Article ID: 130007800312
• DOI: 10.5918/jamstecr.5.61
• ISSN: 2186358X
• ISSN: 18801153
• Web Site: https://www.jstage.jst.go.jp/article/jamstecr/5/0/5_61/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed