 | | Journal (article/letter/editorial) | | Numerical Studies of the Hoso‐ kura Deposit, Northern Japan Hiroshi Takahashi, Shohei Albert Tomita, Katsuaki...Geological and Numerical Studies of the Hosokura Deposit, Northern Japan, Ore Geology Reviews (2020), doi:...Geological and Numerical Studies of the Hosokura Deposit, Northern Japan A Cold-Water Trap as an Essential...Geological and Numerical Studies of the Hosokura Deposit, Northern Japan 1. Introduction Epithermal deposits...study. We selected the Hosokura deposit in Miyagi Prefecture, northern Japan (Fig. 1) with accumulated |  | | Journal (article/letter/editorial) | | Science,Universityof Tokyo,Bunkyo-ku,Hongo,Tokyo113, Japan Abstract The assemblage and mode of occurrenceof...ganguemineralsvary with different deposittypes: quartz, chalcedonicquartz, adularia, calcite, smectite...zeolites,and kaolinitcin Au-Ag-richdeposits;chlorite, quartz, sericite,carbonates(calcite, rhodochrosite, siderite)...suggestthat the fco• for vein-type mineralizationin Japan is controlled by alteration mineralscommonlyoccurringin...hostrocksfor Neogenevein-typemineralizationdistrictsin Japan,it was found that many Cu-Pb-Zn-richvein-type depositsoccurin |  | | Journal (article/letter/editorial) | | Epithermal Deposits T. Urabe University-ofTokyo, Japan Sphalerites from Japanese epithermal Pb-Zn vein-type...vein-type deposits, namely, Yatani, Oizumi and Hosokura, contain 2900-3400 ppm cadmium and 760-2100 ppm...observed at the Shoko-hi vein, Hosokura mine and Hompi vein, Yatani mine. In several samples, the temperatures...environment of the Animas ore-pipe, Providencia mine, Mexico, had been less than 50°C per kilometer....temperature difference from top to bottom of the Butte mine, America, may be less than 25-30°C (Meyer and Hemley |  | | Journal (article/letter/editorial) | | Fluids for the NeogeneVeinsand KurokoDepositsof Japan KEIKO HATTORI AND HITOSHI SAKAI Abstract The...The $D values of inclusionfluids from quartz and calcite of the Au-Ag vein deposits range from --48 to...waters. The •sO/•60 ratios of the ore fluids of quartz, the filling temperatures of the fluid inclusions...inclusions,and the isotopic fractionation factor between quartz and water show only slight shifts from these values... --50 and about --2, respectively,for the Iwami mine, southwestHonshu. These isotopic results, the salinity |  | | Journal (article/letter/editorial) | | Potential for Base and Precious To Metal Deposits in Japan 2020) Antonio ARRIBAS and Toshio MIZUTA Faculty...University, Akita, Japan Abstract There are no known porphyry copper deposits in Japan. Attempts were made...latter option. In this article, we focus on Akita Prefecture and the surrounding areas and consider the potential...northern Honshu and that it serves as a proxy for Japan in general. Akita is rich in mineralization styles...the late 1800s. Osarizawa, the last active vein mine, closed in 1978. Kuroko deposits, the main source |  | | Report (issue) | | clinoptilolite, heulandite, laumontite, prehnite, chlorite, quartz, Distribution: Many localities; a few for well-characterized...Nicaragua. In the Hosokura mine, Miyagi Prefecture; at Toyoura, Yamagata Prefecture; Nishikata, Tochigi...Tochigi Prefecture; Kamogawa, Chiba Prefecture; and many other places in Japan. Name: From the French celadon |  | | Journal (article/letter/editorial) | | Sulfur Isotope Study on Hg and Sb Deposits in Japan Akira IMAI, Naotatsu SHIKAZONO1, Masaaki SHIMIZU*...Hakozaki, Higashi-ku, Fukuoka 812-8581, Fukuoka, Japan [e-mail: imai@mine.kyushu-u.ac.jp] * University...University, Gofuku 3190, Toyama 9308555, Toyama, Japan 1 Present address: Department of Applied Chemistry... Kanagawa, Japan 2 Present address: Tokiwadaira-Nishikubo, Matsudo 270-2266, Chiba, Japan Received on...jamesonite and berthierite from Sb deposits in Japan are examined in order to understand metallogeneses |  | | Journal (article/letter/editorial) | | 塔状 マ ン ガ ン 方 解 石 Towery manganocalcite from Miyagi Abstract. shown pale in Manganocalcite pink...(Keiichi Yamaoka)** Omori)* was occurred, mine, shows red as Miyagi towery fluorescence gravity is ...aggregate Prefecture. w=1.6785, ƒÃ=1.5004, ƒÃ-ƒÖ=(-)0.1781. and mine, 大 Hosokura specific Hosokura Prefecture...S1 .00 O4.00 found in mine, and epithermal Aomori quartz. vein Prefecture. The sequence barit...barite-pyrite-chalcedony-quartz. a-axis and and shown 三 Kominato a=1.636, ƒÁ=1.647 is Prefecture chalcedony |  | | Journal (article/letter/editorial) | | low-sulfidation epithermal gold deposit, Northeast Japan arc Teruhiro Suzuki | Shota Satori Graduate School...International Resource Sciences, Akita University, Akita, Japan Correspondence Yasushi Watanabe, Graduate School...Akita 010-8502, Japan. Email: y-watanabe@gipc.akita-u.ac.jp Funding information Japan Society for the...deposits in the Tohoku region of the Northeast Japan arc; however, these deposits have undergone limited...research study of the Bosawa deposit in Akita Prefecture was conducted to support future gold exploration |  | | Journal (article/letter/editorial) | | 461-478 Mineralization and Paragenesisof the Huanzala Mine, Central Peru HIDEKI IMAI, MASASHI KAWASAKI, MITSUO...SaitamaPrefecture,Japan362 Abstract The Huanzala mine is a zinc and lead mineral deposit found in the...are, from bottom to top, chert (Chimu THE Huanzala mine is situated in central Peru, about Formation), ...north-northwest-trending (Fig. •). pany, Ltd. In 1981, the mine produced900 metric The Huanzala deposit occursin...porphyrywasintrudedinto the Chimu Formationjust to the east of the mine (Fig. 1). The absoluteage of the granodioriteporphyry |  | | Journal (article/letter/editorial) | | AIST, Central 7, Higashi 1-1-1, Tsukuba 305-8567, Japan [e-mail: s-ishihara@aist.go.jp] * Department of...739-8526, Japan ** Institute for Geo-resources and Environment, Geological Survey of Japan, AIST Central...Central 7, Higashi 1-1-1, Tsukuba 305-8567, Japan Received on April 9, 2006; accepted on July 29, 2006 Abstract:...vary from a few ppm (e.g., Kosaka mine) to more than 300 ppm (Toyoha mine). The amount of indium in all the...types. The largest one is Toyoha mine (4,700 tons In) and the Ashio mine (ca. 1,200 tons In) was found to |  | | 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) | | Science, The University of Tokyo, Hongo, Tokyo, Japan At&a&--The W/S” ratios in various sulphur compounds...for sulphates in the epithermal ore deposits of Japan. Xt wan also shown that the preeent isotopic composition...etandard. Troilite anlphnr from Tanogami meteorite in Japan wes chosen as the standard sulphur and the isotopic...determination, a galena from the Hosokura mine in Miyagi Prefecture was used as the secondary substandard... Hosokure mine, >Iiyagi Prefecture (ep. v.)t Hansok mine, Akits Prefecture (B). D8ir8 mine, Akit Prefecture | | | Journal (article/letter/editorial) | | 鉱 化 帯 で も(1)緑 金 銀 石 英 脈 型,(4)鉛 zone,(11) zone(quartz, 泥 石 錫 鉱 脈 型,(2) 亜 鉛 鉱 脈 型 の 帯 に 分 け られ,マ ン... Narita E.(1961), Mine, Wall Miyagi Ser. IV, rock alteration Prefecture, in north‑east the...the Kanoko Japan, Jour. vein swarm, Fac.Sci., Hosokura Hokkaido Univ., XI,59〜75. 成 田英 吉 ・秋...Honshu, and ore Japan. deposits Jour, of the Fac. Sci., Onikobe‑Hosokura Hokkaido district, |  | | Journal (article/letter/editorial) | | from the Ohori Base Metal Deposit, Yamagata Prefecture, NE Japan: Implications for Bi-metallogenesis in the...Environmental Sciences, Yamagata University, Yamagata, Japan Abstract The Ohori deposit, one of the base metal...metal deposits in the Green-Tuff region, NE Japan, is composed of two types of mineralization; a skarn-type...Sciences, Yamagata University, Yamagata 990-8560, Japan. Email: nakashi@sci.kj.yamagata-u.ac.jp © 2010 The...deposit-types and geology of Bi-produced deposits in Japan and the world, and proposed some guide lines of |  | | Book | | been carried out. Epithermal vein-type deposits in Japan have also been well-studied. More than 1,000 papers...on Kuroko and epithermal vein-type deposits in Japan will be summarized in Chapter 1. The descriptions...study epithermal vein-type and Kuroko deposits in Japan. I learned from them an importance of the integration...fluid inclusion studies of vein-type deposits in Japan were especially valid and useful to writing this...On the origin of Kuroko of the Kosaka mine. J. Geol. Soc. Japan, 26, 107-132 (in Japanese). Ohmoto, H |  | | Journal (article/letter/editorial) | | Petrologyand Economic Geology,Tohohu Un'iwrsity, Senda'i,Japan. Ansrnect The purpose of this study is to investigate...writer found that fibrous sphalerite from the Hosokura mine, Japan has hexagonal growth patterns on (111),...taken from the vein'deposit type of the Hozawa mine, Japan. The sphalerite occurs as t302 SLIP STRUCTUREOF...Sadanagaand Sueno (1967) on the a-p transition of quartz and AgzS have presented examples of twin formation...Electron microscopeobservationsof galenafrom Takahi mine and Hosokuramine. Scd.Rep. TohohuUni'a.,III,9r 4l-47 |  | Yamaguchi, Kohei, Tomiyama, Shingo, Igarashi, Toshifumi, Yamagata, Saburo, Ebato, Masanori, Sakoda, Masatoshi (2021) Improvement in pH and Total Iron Concentration of Acid Mine Drainage after Backfilling: A Case Study of an Underground Abandoned Mine in Japan. Minerals, 11 (11) 1297 doi:10.3390/min11111297 | Journal (article/letter/editorial) | | of Acid Mine Drainage after Backfilling: A Case Study of an Underground Abandoned Mine in Japan Kohei Yamaguchi...of Acid Mine Drainage after Backfilling: A Case Study of an Underground Abandoned Mine in Japan. Minerals...060-8628, Japan Mitsubishi Materials Corporation, 3-2-3, Marunouchi, Chiyoda-ku, Tokyo 100-8117, Japan; s-yamaga@mmc...Engineering, Hokkaido University, Sapporo 060-8628, Japan; tomiyama@mmc.co.jp (S.T.); tosifumi@eng.hokudai...Saitama-shi, Saitama 336-0015, Japan; ebato-masanori@oyonet.oyo.co.jp Japan Oil, Gas and Metals National |  | | Journal (article/letter/editorial) | | Gold Mineralization in Izu Peninsula, Central Japan, during Crustal Extension in Response to Double...Shizuoka University, Shizuoka-City, Japan Abstract Izu Peninsula in central Japan, the northern tip of the... Geochemical data from fluid inclusions in vein quartz, the mineralogy and mineral chemistry of alteration...of the Sado Au–Ag deposit on Sado island in the Japan Sea. Two mineralization events coincide with extensive...dyke swarms related to the back-arc opening of the Japan Sea. The geological setting of the Au–Ag mineralization |  | | Book | | G - EOLOGICAL OF THE MINERI IN JAPAN AND Hideki Imai t z0 ::a:: 0 0 � I ( CRYSTALS NOT PISTOLS...STUDIES OF THE MINERAL DEPOSITS'( GEOLOGICAL lN JAPAN AND EAST ASIA ,,.. I -I �1n .. o� ;.,. "W...GEOLOGICAL STUDIES OF THE MINERAL DEP OSITS IN JAPAN AND EAST ASIA Hideki Imai UNIVERSITY OF TOKYO PRESS...TOKYO PRESS, 1978 UTP 3044-687 59-5 I 49 Printed in Japan All rights reserved. No part of this publication...During these 40 years, I studied the ore deposits in Japan and East Asia from the geological and mineralogical |  | | Journal (article/letter/editorial) | | the so-calledGreen Tuff basins of Tertiary age in Japan. They are the youngest,least modifiedexamplesknown...personalcommunicathe broad contextof metallogenicepochsin Japan. tions. We alsodiscuss the genesisof the felsicrocks...Takeuchi (1970). Grade of crude ore (%) Name of mine Kosaka l Hanaoka t Year of Size of ore de- ...in 1972 (per month) Crude ore -- 45,000 tons mine• 25 million tons Acid leached Cu = 70 tons 1.2...1972, Kuroko depositssuppliedapproximately Each mine consistsof a number of closely clusand 45 percent |  | | Book (edition) | | Krenner's, and new face. OF MINERALS OF JAPAN BY TSUNASHIRO WADA ...alogy, like most other sciences, has developed in Japan. Mineralogy was first taught here in 1873 by a German...crystallised and of high known minerals from Japan are stibnite, in crystals most gigantic and splendid...metallic found in abundance. sul- In fact Japan seems to be an instance of remarkable richness in...prepare a paper devoted to the miner- alogy of Japan. In the following pages, which have been written |  | | Journal (article/letter/editorial) | | from the Neogene epithermal vein-type deposits of Japan: Implication for evolution of terrestrial geothermal...Faculty of Science, University of Tokyo, Tokyo 113 (Japan) (Accepted for publication April 13, 1989 ) Abstract...from the Neogene epithermal vein-type deposits of Japan: Implication for evolution of terrestrial geothermal...from the Neogene epithermal vein-type deposits in Japan can be divided into two types: type A which precipitated...carbonates from Neogene epithermal vein-type deposits in Japan have been carried out: (1) a large number of oxygen |  | Tharalson, Erik, Monecke, Thomas, Reynolds, T., Zeeck, Lauren, Pfaff, Katharina, Kelly, Nigel (2019) The Distribution of Precious Metals in High-Grade Banded Quartz Veins from Low-Sulfidation Epithermal Deposits: Constraints from µXRF Mapping. Minerals, 9 (12) 740 doi:10.3390/min9120740 | Journal (article/letter/editorial) | | Distribution of Precious Metals in High-Grade Banded Quartz Veins from Low-Sulfidation Epithermal Deposits:...commonly associated with the occurrence of banded quartz veins. The ore minerals in these veins are heterogeneously...maps obtained on representative samples of banded quartz veins show that Au occurs together with Ag minerals...the ginguro bands, but Au can also be present in quartz bands that are light gray to white and cannot be...latter being a new term coined here for colloform quartz bands containing primarily electrum or native gold |  | | Journal (article/letter/editorial) | | of the adit, so as to allow the air to cir by Japan at the Centennial, which, for completeness,even...mainly pur The annual production of the mines of Japan,in gold,sil the houses, and a very fine black stucco...1. The insufficiency of ma itely decided that Japan should participate, and at once chinery for pumping...experience at gether with the custom of leaving the mine to be worked entirely by contracting miners, without...benefit of it to their coun cases the future of the mine has been endangered by the trymen. The government |
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