 | | Journal (article/letter/editorial) | | the Hydrothermal System of Southwestern Hokkaido, Japan Euis T. YUNINGSIH1,2 and Hiroharu MATSUEDA2 1...University Museum, Hokkaido University, Sapporo, Japan Abstract Shin-Otoyo, Suttsu, Teine, Date, Chitose...deposits, and located in southwestern Hokkaido, Japan. The deposits are predominantly hosted by the Green...minerals identified from gold– silver and base metal quartz–sulfide veins represented some sulfosalt mineralization...the Harukayama district of Shin-Otoyo: adularia–quartz vein-type and the dissemination and stockwork acid-type |  | | Report (issue) | | mineral col lector, was born in Kanazawa, Ishikawa Prefecture, on August 30, 1874. Soon after his graduation...at the Arakawa Mine, Akita Prefecture. In 1909, he was promoted to Director of the Mine and held. the...then that of the Director of the Yoshioka Mine, Okayama Prefecture, for about seven years altogether. He...technology in the first half of this century in Japan. He retired from the Advisory Board of the Mitsu...such volumes as " Beiträge zur Mineralogie von. Japan ", Neue Folge I and II (T. Ito, 1937), " Japanese |  | | Journal (article/letter/editorial) | | Native Tellurium from Epithermal Gold Deposits in Japan Masataka Nakata1 and Kosei Komuro2 1 Department...Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan Abstract The chemistry and mode of occurrences...Iriki in Japan are examined. Mineral assemblages in contact with native tellurium are: quartz-sylvanite...at Teine, quartz-hessite-sylvanite-tellurantimony at Kobetsuzawa, quartz at Mutsu, quartz-stutzite-h...te-sylvanite-tetradymite at Kawazu, quartz at Suzaki, and quartz-goldfieldite at Iriki. The peak patterns |  | | Journal (article/letter/editorial) | | Ag)Te2 Minerals from Epithermal Gold Deposits in Japan Kosei KOMURO1 and Masataka NAKATA2 1 Graduate School...Sciences, Tokyo Gakugei University, Koganei, Tokyo, Japan Abstract Chemical composition and mode of occurrences...minerals occur in microbands of tellurides and fine quartz. The minerals in telluride bands change from krennerite...stutzite, hessite and tetradymite in the coarser gray quartz part. The Teine sample also contains sylvanite...sylvanite and native tellurium with barite and quartz. The peak patterns of XRD of calaverite, krennerite and |  | | Journal (article/letter/editorial) | | ・黄金澤兩鑛床の鑛物組成と 其の共生關係に就て On the geology of the Teine mine, with some remarks on the mineral composition and...and paragenesis of the Mitsuyama, Koganesawa ore deposits. 杉 本 良 也(Ryoya Sugimoto) Abstrast (1) The...propylite. (3) The gangue minerals of the Koganesawa deposits are quartz and carbonates, while those of the...the Mitsuyama deposits are quartz and barite. The former have the .lower temperature minerals, such realgar...content of Au and Ag has a close connection with quartz, barite and calcite in the upper, parts and with |  | | Journal (article/letter/editorial) | | Telluride Mineralization in Southwestern Hokkaido, Japan Euis T. YUNINGSIH*, Hiroharu MATSUEDA** and Ildrem...Museum, Hokkaido University, Sapporo 060–0810, Japan Tellurium–bearing gold, silver, and base metal...southwestern Hokkaido, Japan. The telluride deposits in this district consist of quartz–filled fracture systems...alteration minerals are very fine to fine–grained quartz, chalcedony, anatase, zeolite, sericite, barite...with time. Microthermometry of fluid inclusions in quartz and barite indicate that the mineralization formed |  | IMAI, Akira, MATSUEDA, Hiroharu, YAMADA, Ryoichi, MASUTA, Kenzo (1999) Polymetallic Mineralization at the Shin-Ohtoyo Deposit, Harukayama District, Hokkaido, Japan. Resource Geology, 49 (2) 75-88 doi:10.1111/j.1751-3928.1999.tb00033.x | Journal (article/letter/editorial) | | Shin-Ohtoyo Deposit, Harukayama District, Hokkaido, Japan Akira IMAI*, Hiroharu MATSUEDA**, Ryoichi YAMADA***...west of Sapporo, Hokkaido, Japan. Both acid-type disseminated and adularia-quartz-type vein Au mineralizations...characteristic mineral assemblage; (1) chalcedonic quartz veinlets in silicified zone around the deposit...occurrence of friedrichite and stibiocolusite from Japan are reported. The chemical formula of the unnamed...drill cores recovered by Metal Mining Agency of Japan (MMAJ) vary from –2.7 ‰ to +0.8 ‰. Sulfur isotopic |
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