title: A kuroko-type polymetallic sulfide deposit in a submarine silicic caldera
abstract: Manned submersible studies have delineated a large and actively growing Kuroko-type volcanogenic massive sulfide deposit 400 kilometers south of Tokyo in Myojin Knoll submarine caldera. The sulfide body is located on the caldera floor at a depth of 1210 to 1360 meters, has an area of 400 by 400 by 30 meters, and is notably rich in gold and silver. The discovery of a large Kuroko-type polymetallic sulfide deposit in this arc-front caldera raises the possibility that the numerous unexplored submarine silicic calderas elsewhere might have similar deposits.
authors.affiliation: Geological Survey of Japan 1-3, Higashi-1, Tsukuba, Ibaraki 305-8567, Japan. Smithsonian Institution MRC-119, Washington, DC 20560-0119, USA. Japan Marine Science & Technology Center 2-15, Natsushima-cho, Yokosuka 237-0061, Japan. University of Tokyo.
authors.initials: K
authors.lastname: Iizasa
authors.initials: RS
authors.lastname: Fiske
authors.initials: O
authors.lastname: Ishizuka
authors.initials: M
authors.lastname: Yuasa
authors.initials: J
authors.lastname: Hashimoto
authors.initials: J
authors.lastname: Ishibashi
authors.initials: J
authors.lastname: Naka
authors.initials: Y
authors.lastname: Horii
authors.initials: Y
authors.lastname: Fujiwara
authors.initials: A
authors.lastname: Imai
authors.initials: S
authors.lastname: Koyama