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 | |
| Publication status | Published - Sep 1 2001 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Geology
- Geochemistry and Petrology
Cite this
Further occurrence of brown ores in Kuroko-type deposits in Japan. / Imai, Akira; Ishizuka, Osamu; Yamada, Ryoichi; Miyamoto, Hiroshi.
In: Resource Geology, Vol. 51, No. 3, 01.09.2001, p. 263-268.Research output: Contribution to journal › Article
}
TY - JOUR
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.
UR - http://www.scopus.com/inward/record.url?scp=0042905790&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0042905790&partnerID=8YFLogxK
U2 - 10.1111/j.1751-3928.2001.tb00098.x
DO - 10.1111/j.1751-3928.2001.tb00098.x
M3 - Article
AN - SCOPUS:0042905790
VL - 51
SP - 263
EP - 268
JO - Resource Geology
JF - Resource Geology
SN - 1344-1698
IS - 3
ER -