Further occurrence of brown ores in Kuroko-type deposits in Japan

Akira Imai; Osamu Ishizuka; Ryoichi Yamada; Hiroshi Miyamoto

doi:10.1111/j.1751-3928.2001.tb00098.x

Further occurrence of brown ores in Kuroko-type deposits in Japan

Akira Imai, Osamu Ishizuka, Ryoichi Yamada, Hiroshi Miyamoto

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The occurrence of so-called brown ore from the Kuroko-type deposits in Japan was examined. Brown ore specimens from the Kannondo, Inarizawa, Matsumine, Fukazawa, Uchinotai, Kosaka (orebody unknown) and Nurukawa deposits have been found in the ore collection stored by Dowa Mining Co. Ltd. and the subsidiary companies. In addition, occurrences from the Fukazawa, Matsumine, Ezuri, Shakanai, and Ginzan deposits were previously reported. The brown ore is characterized by its color and by its higher Ag concentration (up to around 2,400 g/t) than ordinary black ores. This type of ore occurs commonly in the Kuroko-type deposits in Japan, whereas its extent is limited. The brown ore is a type of Au-rich massive sulfide ore formed in submarine hydrothermal system.

Original language	English
Pages (from-to)	263-268
Number of pages	6
Journal	Resource Geology
Volume	51
Issue number	3
DOIs	https://doi.org/10.1111/j.1751-3928.2001.tb00098.x
Publication status	Published - Sep 1 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Geology
Geochemistry and Petrology

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10.1111/j.1751-3928.2001.tb00098.x

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title = "Further occurrence of brown ores in Kuroko-type deposits in Japan",

abstract = "The occurrence of so-called brown ore from the Kuroko-type deposits in Japan was examined. Brown ore specimens from the Kannondo, Inarizawa, Matsumine, Fukazawa, Uchinotai, Kosaka (orebody unknown) and Nurukawa deposits have been found in the ore collection stored by Dowa Mining Co. Ltd. and the subsidiary companies. In addition, occurrences from the Fukazawa, Matsumine, Ezuri, Shakanai, and Ginzan deposits were previously reported. The brown ore is characterized by its color and by its higher Ag concentration (up to around 2,400 g/t) than ordinary black ores. This type of ore occurs commonly in the Kuroko-type deposits in Japan, whereas its extent is limited. The brown ore is a type of Au-rich massive sulfide ore formed in submarine hydrothermal system.",

author = "Akira Imai and Osamu Ishizuka and Ryoichi Yamada and Hiroshi Miyamoto",

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T1 - Further occurrence of brown ores in Kuroko-type deposits in Japan

AU - Imai, Akira

AU - Ishizuka, Osamu

AU - Yamada, Ryoichi

AU - Miyamoto, Hiroshi

PY - 2001/9/1

Y1 - 2001/9/1

N2 - The occurrence of so-called brown ore from the Kuroko-type deposits in Japan was examined. Brown ore specimens from the Kannondo, Inarizawa, Matsumine, Fukazawa, Uchinotai, Kosaka (orebody unknown) and Nurukawa deposits have been found in the ore collection stored by Dowa Mining Co. Ltd. and the subsidiary companies. In addition, occurrences from the Fukazawa, Matsumine, Ezuri, Shakanai, and Ginzan deposits were previously reported. The brown ore is characterized by its color and by its higher Ag concentration (up to around 2,400 g/t) than ordinary black ores. This type of ore occurs commonly in the Kuroko-type deposits in Japan, whereas its extent is limited. The brown ore is a type of Au-rich massive sulfide ore formed in submarine hydrothermal system.

AB - The occurrence of so-called brown ore from the Kuroko-type deposits in Japan was examined. Brown ore specimens from the Kannondo, Inarizawa, Matsumine, Fukazawa, Uchinotai, Kosaka (orebody unknown) and Nurukawa deposits have been found in the ore collection stored by Dowa Mining Co. Ltd. and the subsidiary companies. In addition, occurrences from the Fukazawa, Matsumine, Ezuri, Shakanai, and Ginzan deposits were previously reported. The brown ore is characterized by its color and by its higher Ag concentration (up to around 2,400 g/t) than ordinary black ores. This type of ore occurs commonly in the Kuroko-type deposits in Japan, whereas its extent is limited. The brown ore is a type of Au-rich massive sulfide ore formed in submarine hydrothermal system.

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ER -

Further occurrence of brown ores in Kuroko-type deposits in Japan

Abstract

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