 | | Journal (article/letter/editorial) | | Science,Universityof Tokyo,Bunkyo-ku,Hongo,Tokyo113, Japan Abstract The assemblage and mode of occurrenceof...chlorite-smectite, sericite, zeolites,and kaolinitcin Au-Ag-richdeposits;chlorite, quartz, sericite,carbonates(calcite...(magnetite) • in Pb-Zn-richdeposits; chlorite,sericite,siderite, hematite, magnetite, and (epidote) in...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) | | Jour. Japan. Assoc. Min. Pet. Econ. Geol., Vol. 47, February, PETROLOGY OF THE TRACHYTIC NORTHEAST...NORTHEAST JAPAN KAZUO Institute of Earth ROCKS 1962 OF (‡T) MIYAGI Science, Hirosaki University...Yamagata Prefecture. At present such kinds of rock have been found from many places of the Japan Sea Border...Border land of Northeast Japan, excending from Southwest Hokkaido via Niigata Prefecture2) to the Hokuriku...intermediate between the alkalic rock series of the Circum Japan Sea rock province and the calc-alkalic rock series |  | | Book (volume) | | STRATIGRAPHY AND TECTONICS OF JAPAN QE 304 . A14 1992 v. 2 Geological Survey of Japan 1992 Digitized by the...AND TECTONICS OF JAPAN Geological Survey of Japan 1-1-3 Higashi, Tsukuba 305, Japan 1992 e V V 29ih...Tectonics of Japan Editors: Hirokazu Kato and Harufumi Noro Geological Survey of Japan 1-1-3 Higashi...Higashi, Tsukuba 305, Japan Technical Editors Technical Reviewer: Hirokazu Hase, Hirokazu Kato, Yoshihiro...Survey of Japan 1-1-3 Higashi, Tsukuba 305, Japan Copyright Holder: Geological Survey of Japan 1992 Printed |  | | Journal (article/letter/editorial) | | Inclusionsfrom Epithermal Au-Ag Vein-Type Deposits in Japan NAOTATSU SHIKAZONO GeologicalInstitute,Facultyof...Science,Universityof Tokyo,Bunkyo-ku,Hongo,Tokyo113, Japan Abstract The assemblageelectrum-sphalerite-pyrite-argentite...1964, 1966; Barton, that include sericite, interstratified sericite-smectite, 1980) and theoretically(e...JapaneseEpithermalAu-Ag Deposits Mine name Grain size (/xmin diam) Sado 0.3-150 (avg 10-35) Takatama...from core to margin AU-AG DEPOSIT TEMPERATURES,JAPAN to 300øC, as derived from fluid inclusiondata (see |  | | 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 |  | | Report (issue) | | the Hishikari epithermal vein system in Kyushu, Japan .................................... 14 Fig. 4...vein (25b), 2) Comstock epithermal vein (25c), 3) Sado epithermal veins (25d), and 4) quartz-alunite Au-Ag...often referred to as quartz-adularia, adularia-sericite or low-sulfur vein systems in the literature (Silberman...highsulfur system. The Sado epithermal vein model (the Takeno deposit, Japan, being a well described...and Watanabe, 1981) is a type chiefly found in Japan, known for silver sulfosalts and tellurides, and |  | | 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...Kobetsuzawa, Mutsu, Kawazu, Suzaki and Iriki in Japan are examined. Mineral assemblages in contact with...tellurium such as Agawa, Date, Takeno, Chugu, Chitose, Sado and Kushikino are estimated to have been formed...University, 4-1-1 Nukuikita, Koganei, Tokyo 184-8501, Japan. Email: nakata@u-gakugei.ac.jp © 2011 The Authors |  | | 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 |  | | Journal (article/letter/editorial) | | Tohyo Uni,ttersi'tyof Eilucation, Otsuka, Tokyo, JaPan. Ansrnacr Various kinds of ciay minerals mixed with...startinq materials: (a) rllite from Yoji, Gumma Prefecture. rt occurs as a hydrothermal alteration product...(Kodama, 1957). (b) Pyrophyllite from Yoji, Gumma Prefecture. rt occurs as a hydrothermal alteration product...1958). (c) Montmorillonite from Endani, Tottori Prefecture. It occurs as clay veins cutting granite (Yoshikawa...(d) Leuchtenbergite from the wanibuchi mine, shimane prefecture. rt occurs in the alteration area around |  | | Report (volume) | | Center, Rm. 1C402, 12201 Sunrise Valley Dr. SALT LAKE CITY, Utah--Federal Bldg., Rm. 8105,125 South State St...Donald A. Singer 25d 151 Descriptive model of Sado epithermal veins, by Dan L. Mosier, Byron R. Berger...Donald A. Singer 154 Grade and tonnage model of Sado epithermal veins, by Dan L. Mosier and Takeo Sa...deposits 153 Tonnages of Sado epithermal vein deposits 156 Gold grades of Sado epithermal vein deposits...deposits 156 By-product of Sado epithermal vein deposits 157 Tonnages of epithermal quartz-alunite vein deposits |  | | 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) | | J. Japan. Assoc. Min, P etr. Econ. Geol. 69, 147-154, 1974 AN INTERSTRATIFIED MINERAL MONTMORILLONITE...Institute of and Sciences, An interstratified Japan. The with has water be 1.0 and in has glycol...treatment 800•Ž (montmorillonite .33, hydro Prefecture two defining A)=0 the to having .60, succeeds... mica AND ALTERED montmorillonite of MICA Japan. 27.14A silicate (mica mica of of Kagoshima...ported by many investigators, and in the Kagoshima Prefecture only some interstrati fled minerals were found |  | Oliveira, V., Matos, J., Bengala, M., Silva, N., Sousa, P., Torres, L. (1997) Geology and geophysics as successful tools in the discovery of the Lagoa Salgada Orebody (Sado Tertiary Basin - Iberian Pyrite Belt), Gr�ndola, Portugal. Mineralium Deposita, 33 (1) 170-187 doi:10.1007/s001260050139 | Journal (article/letter/editorial) | | tools in the discovery of the Lagoa Salgada Orebody (Sado Tertiary Basin ± Iberian Pyrite Belt), GraÃndola...depoÂsitos cenozoicos de la cuenca terciaria de Baixo-Sado. El principal meÂtodo de exploracioÂn usado en este...deposits of the Baixo-Sado Tertiary Basin. An area of 655 km2, located in the Sado Tertiary Basin (DGGM...area complied with the following premises: a. The Sado Tertiary Basin is a basin of tectonic origin, dominated...out previously in a signi®cant part of the High Sado Tertiary Basin, between the Aljustrel and Lousal |  | de Oliveira, D. P. S., Matos, J. X., Rosa, C. J. P., Rosa, D. R. N., Figueiredo, M. O., Silva, T. P., Guimaraes, F., Carvalho, J. R. S., Pinto, A. M. M., Relvas, J. R. M. S., Reiser, F. K. M. (2011) The Lagoa Salgada Orebody, Iberian Pyrite Belt, Portugal. Economic Geology, 106 (7) 1111-1128 doi:10.2113/econgeo.106.7.1111 | Journal (article/letter/editorial) | | Corvo and occurs ~130 m beneath sediments of the Sado Tertiary basin, limiting interpretation to drill...discovered in 1992 under Tertiary sediments of the Sado basin after detection of a Bouguer and a magnetic...far, occurs underneath ~130 m of sediments of the Sado Tertiary basin (Fig. 1), solely limiting interpretation...bands are mainly composed of microcrystalline sericite, with accessory quartz and feldspar, whereas dark...quartz, feldspar, and chlorite with accessory sericite. These bands also show abundant relics of recrystallized |  | | Report (issue) | | amount of gold, silver, copper, lead, and zinc in Sado-type deposits in terrane I........................precious metal systems Gold-rich types Quartz-alunite* Sado-type, quartz-adularia* Hot-spring Au-Ag* Detach...are represented by a mineral occurrence, deposit, mine, or that might be present in the study area. Metallic...(Rare earth elements and thorium) Pyrophyllite and sericite Silica Talc Wollastonite Table 2. Probabilistic...I, HI (other terranes combined) Ouartz-adularia-Sado-type (25d) I~Randsburg area Hot-spring gold (25a) |  | | Report (issue) | | geochemistry, the associated gold deposits were modeled as Sado-type epithermal deposits. All available data on...the geologic environments that are permissive for Sado-type epithermal veins and other deposit types; (2)...se modelaron como dep6sitos epitermales de tipo Sado. Todos los datos disponibles sobre 319 yacimientos...ambientes geo!6gicos que permiten vetas epitermales tipo Sado y otros tipos de dep6sitos; (2) la caracterizaci6n... The fissure and associated stockwork veins are Sado-type epithermal deposits. The stockwork quartz veins |  | | Report (volume) | | percent during open-pit mining, the mine would have an expected mine life of almost five years. A preliminary...Grade districts farther north, are classified as Sado (Japan) type epithermal vein deposits (Mosier and others...collected at and 1 mi downstream from the Hayden Hill mine to geochemically characterize this type of deposit...sieved concentrate sample panned from mud along the mine road crossing the south face of Hayden Hill contained...in the Skedaddle Mountains could fit either the Sado or Comstock epithermal-vein model. Both deposit |  | | Book (volume) | | Field Trip Guide Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES r QE 304 . A14 1992 v.6 The...Field Trip Guide Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES The Society of Resource Geology...Tokyo 107, Japan 1992 29th IGC FIELD TRIP GUIDEBOOK Volume 6 : Mineral Deposits of Japan and the Philippines...building 9-6-41 Akasaka, Minato-ku, Tokyo 107, Japan Technical Editors Technical Reviewer: Editorial...Harufumi Noro Geological Survey of Japan 1-1-3 Higashi, Tsukuba 305, Japan Copyright Holder: The Society |  | | Report (issue) | | deposit. Table 4, part B, gives an alphabetic list of mine and properties followed by the deposit name. CHARACTERISTICS...of deposits used in Table 1 may represent a major mine, district name, or local town name or other prominent...epithermal veins deposit type (Costock epithermal veins, Sado epithermal veins, and epithermal quartz alunite... Pyrrhotite appears to be been reported in just a single mine in the East Belt of the Sierra Nevada foothills...(Malcolm, 1912), galena was widely considered by mine operators to be correlated with better gold grades |  | Shuto, K., Sato, M., Kawabata, H., Osanai, Y., Nakano, N., Yashima, R. (2013) Petrogenesis of Middle Miocene Primitive Basalt, Andesite and Garnet-bearing Adakitic Rhyodacite from the Ryozen Formation: Implications for the Tectono-magmatic Evolution of the NE Japan Arc. Journal of Petrology, 54 (12) 2413-2454 doi:10.1093/petrology/egt052 | Journal (article/letter/editorial) | | Tectono-magmatic Evolution of the NE Japan Arc 1 INSTITUTE OF SCIENCE AND TECHNOLOGY, NIIGATA UNIVERSITY, 2-8050 IKARASHI...NISHI-KU, NIIGATA 950-2181, JAPAN 2 NISSAKU CO., LTD., 1-10-1 KAMIKIDO, HIGASHI-KU, NIIGATA 950-0891...950-0891, JAPAN 3 INSTITUTE FOR RESEARCH ON EARTH EVOLUTION (IFREE), JAPAN AGENCY FOR MARINE^EARTH SCIENCE...SCIENCE AND TECHNOLOGY (JAMSTEC), YOKOSUKA 237-0061, JAPAN 4 DIVISION OF EARTH SCIENCES, DEPARTMENT OF ENVIRONMENTAL... FUKUOKA 819-0395, JAPAN 5 2-217 NUMANOUE, FUSHIOGAMI, FUKUSHIMA 960-8154, JAPAN RECEIVED DECEMBER |  | | Report (issue) | | drainage. The altered andesites contain quartz, sericite, disseminated pyrite and locally chalcopyrite...(figure 2). Hila village is about 40 km from Ambon City via paved road with a travel time of about 1.5 hours...light-gray finegrained groundmass composed of quartz, sericite, and minor chlorite. Groundmass quartz is very...fragments have been pervasively altered to quartz and sericite. The sample also contains sparse feldspar phenocrysts...groundmass has been pervasively altered to quartz and sericite. Small (1 mm. diameter) cubes of pyrite are disseminated |  | | Journal (article/letter/editorial) | | zone in the stockwork surrounded by a more distal sericite-rich alteration zone (Barriga 1990; Large et al...higher Zn values mostly highlight the Aljustrel mine area. Additionally, for all these base metals considered...general flat-lying topography and gentle slopes in the Sado basin do not favour much mixing. On the other hand... The majority of these sediments belongs to the Sado Basin and mostly constitute the result of weathering...the Lagoa Salgada orebody (Iberian Pyrite Belt – Sado Tertiary Basin). Volcanic Environments and Massive |  | | 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 Timmins-OchaliBerlin mine, Columbia (Fisher, 1950) and at the O'Brien mine, Quebec (Mills, 1954). However...character. Gold and silver grains from the Ross Mine, Ontario, 339 SILVER CONTENT (FINENESS) OF GOLD...in intrusive rocks (Troop, 1986) suggest the Ross Mine may have a different origin to typical Abitibi Belt...silver (Fisher, 1945). A probe analysis from the AI Mine at Woods Point, for example, has a fineness of 941...Gympie 9 Coeur d'Alene 10a Charters N e v a d a City Towers lOb Charters Towers KEY 11 ~e-- range |  | | Journal (article/letter/editorial) | | ubiquitous in both band types (hand specimen from Sotiel mine). b Detrital massive pyrite ore showing graded bedding...partially replaced by galena (sample from AznalcoÂllar mine) e Typical banded polymetallic ore showing euhedral...Riotinto mine). f Highly deformed and recrystallized sphalerite-rich ore from AznalcoÂllar mine. Mylonitic...chloritized and silici®ed black shale from AznalcoÂllar mine. Veins are composed by pyrite with subordinated...been calculated from quartz-chlorite and quartz-sericite 40 a IPB 30 Deep ocean vents Red sea % wt |
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