 | | Journal (article/letter/editorial) | | æćȘçćŒć泶çŁăăżăă©çłă°ă«ăŒăé±ç© BetaËte group mineral from Yuge Island in Ehime, Japan ć€§è¶ çć· æ æ°(Yukikazu OGOSHI)î
éé(Tetsuo...is found from metasomatic skarn distributed into Ryoke metamorphic rocks in Yuge Island of Geiyo Islands...but has not been reported in Japan. BetaËte group mineral from Yuge Island is associated with closely ilmenite...BetaËte group mineral, OxycalciobetaËte, Yuge Island, Metasomatic skarn I. ăŻăăă« î ăŹăŒăĄă«çłă°ă«ăŒăîăăçŽ (Matsubara...Science, Faculty of Science, Ehime University, Matsuyama 790î 8577, Japan yahoo.co.jp E-mail: hitotoribashi1584ïŒ |  | Win, Kyaw Soe, Takeuchi, Makoto, Iwakiri, Seiichiro, Tokiwa, Tetsuya (2007) Provenance of detrital garnets from the Yukawa Formation, Yanase district, Shimanto belt, Kii Peninsula, Southwest Japan. The Journal of the Geological Society of Japan, 113 (4) 133-145 doi:10.5575/geosoc.113.133 | Journal (article/letter/editorial) | | Jour. Geol. Soc. Japan, Vol. 113, No. 4, p. 133â145, April 2007 Provenance of detrital garnets from...district, Shimanto belt, Kii Peninsula, Southwest Japan Abstract Kyaw Soe Win ïŒ, Makoto Takeuchi ïŒ, Seiichiro...464-8602, Japan. ïŒïŒ Chodai Co. Ltd. 20-4, 1-chome, NihonbashiKakigara-cho, Chuo-ku, Tokyo, Japan, 1030014...Shimanto belt of central Kii Peninsula, Southwest Japan. The Yukawa Formation is an upper continental slope...Paleo-Ryoke belt, Kurosegawa belt, Cretaceous, Japan The constituents of the Paleo-Ryoke belt are Permian |  | | Journal (article/letter/editorial) | | Isotopic Study on the Date-Nagai Skarn-Type Tungsten Deposit, Northeastern Japan Luvsannyam OYUNJARGAL, Kei...Sciences, University of Tsukuba, Tsukuba, Japan Abstract The skarn-type tungsten deposit of the Date-Nagai...granodiorite batholith of the Iidateyama body. Skarn is developed along the contact between pelitic hornfels...batholith. Zonal arrangement of minerals is observed in skarn. The zonation consists of wollastonite, garnet,...vesuvianite-garnet zones. The oxygen isotope values of skarn minerals were obtained as ÎŽ18O = 4.2â7.7â° for garnet |  | Sugaki, Asahiko, Shima, Hiromi, Kitakaze, Arashi (1980) Miharaite, Cu4FePbBiS6, a new mineral from the Mihara mine, Okayama, Japan. American Mineralogist, 65 (7-8) 784-788 | Journal (article/letter/editorial) | | 1980 a new mineral from the Mihara mine, Okayama,Japan Miharaite, CuaFePbBiS6, AsAHrKo Sucnl I nstituteof...Economic Geology,Tohoku University Aobayama,Sendai,JaPan HInour Sruun Departmentof Mining and Mineral Engineering...Engineering,YamaguchiUniversity Tokiwadai, Ube,JaPan AND ARASHI KITAKAZE I nstitute of Mineralo gy, Petrolo...discovered at the Mihara mine, Okayama Prewith fecture, Japan. It occurs only as minute (<0.3 mm) grains in bornite...closely associated paramThe crystallographic ores. skarn chalcopyrite, galena, and wittichenite in bornite-rich |  | | Journal (article/letter/editorial) | | contain fluid inclusions characteristic of metasomatic skarns, display textural evidence of replacement...calc-silicate rich beds of submarine exhalite origin. Skarn deposits form valuable repositories of many metals...Browns Creek (Au), Biggenden (magnetite), King Island and Kara (W) and Renison Bell (Sn)), and there...which include the ZnFe sulphidebearing Ban Ban skarn in southeastern Queensland (25°47'S, 151°58'E; Ashley...Ashley 1980), the Sn-bearing Willi Willi skarn in northeastern New South Wales (30°58'S, 152°23'E; Kinny |  | | Journal (article/letter/editorial) | | EconomicGeologq Vol. 77, 1982, pp. 755-768 Skarn Deposits Historical Bibliographythrough 1970 DONALD...comparedto that on Beaumont, Elie de, 1847 Elba. The (metasomatic)zoning at the TemperinD A generalizationof Daubrâąe's...includingElkhorn, Montana.The Archeaniron ores term "skarn" in his writings, other than usingit in of Swedenare...ocessesKnob, all in Idaho. He alsocites Texada Island, British and pneumatolysis"(to translatethe German...Columbia, Canada; White Horse, Yukon, Canada; SKARN DEPOSITS HISTORICAL BIBLIOGRAPHY 757 and numerousdepositsin |  | | Journal (article/letter/editorial) | | elsevier.com/locate/oregeorev Fluid metasomatic genesis of stratiform skarn in the Suoerkuduke Cu-Mo deposit...Available online 16 April 2016 Keywords: Stratiform skarn Protolith Fluid metasomatism Mass balance East Junggar...skarns are distinct from typical contact metasomatic skarn in wall rock, as no carbonate or calcareous...the distribution patterns of skarn zonation in that gradually weakened skarn zones are not quite symmetrically...on both sides of the alteration center (a garnet skarn). Abundant remnants of andesite, andesitic porphyry |  | | Journal (article/letter/editorial) | | Isotopes of the Huanzala Deposits, Peru: Early Skarn and Late Polymetallic Replacement Style Mineralizations...Environmental Sciences, University of Tsukuba, Tsukuba, Japan Abstract Carbonate-replacement polymetallic mineralization...CuâZnâ(Pb) mineralization associated with metasomatic skarn, and the late stage involved high to intermediate...ïŹuid inclusions, Huanzala, polymetallic, porphyry, skarn. 1. Introduction Porphyry-related base and precious...University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8572, Japan. Email: khayashi@geol.tsukuba.ac.jp © 2019 The |  | | Journal (issue) | | fromtheAndranondambo mineinSEMadagascar: evidence for metasomatic skarn formation by E.J. GĂŒbelin1 and A. Peretti2...sapphires have formed during several different metasomatic events. The later blue sapphire generations have...of cuttable corundum in the southern part of the island, while Koivula et al. (1992) were the first to...founded to excavate and market the sapphires. metasomatic events which occurred in the mining area and...petrographical study of the metamorphic and metasomatic events leading to the formation of hibonite has |  | | Journal (article/letter/editorial) | | hematite ore occurs in proximity with a magnetite-skarn ore, the latter replacing a dolomitic carbonate...Li-analog of pectolite, from the Iwagi Islet, southwest Japan. European Journal of Mineralogy, 29(6), 1045â1050...the in the eastern part of Iwagi Islet, Ehime Prefecture, Japan (34.263°N, 133.161°E). The albitites hosted...Nobuhide Murakami (1923â1994) of Yamaguchi University, Japan for his outstanding contributions to petrology and...National Museum of Nature and Science, Tsukuba, Japan, and the Geological and Mineralogical Museum of |  | | Report (issue) | | allow easy comparison with established types of skarn, this paper presents descriptive and grade-tonnage...literature as Au-bearing skarns, Au-rich skarn, or Au-skarn in a format somewhat similar to models in...ferrous-metal contents. Further, some Au-bearing skarn deposits are gradational into sediment-hosted disseminated...result, the term "goldbearing" skarn more aptly applies to all such skarn deposits and a set of criteria...classification Aubearing skarn: Au-skarn and byproduct Au-skarn. The criteria for the Au skarn subtype are as follows: |  | | Journal (article/letter/editorial) | | Springer-Verlag 1977 Stable Isotope Studies of Metasomatic Ca-Fe-AI-Si Skarns and Associated Metamorphic...rocks of the Cambrian Preble Formation. The metasomatic replacement followed contact metamorphic recrystallization...temperature, and variation in H20/CO2 ratios of the metasomatic fluid are interpreted from 269 analyses of oxygen...wollastonite (Stage I) were least 550 ~ C, and that the metasomatic fluid had an Xco2<0.035 in the massive skarns...rocks, on the other hand, had Xco2<0.15. The metasomatic fluids of Stage I were derived primarily from |  | | Journal (article/letter/editorial) | | Missouri, Columbia, MO 6521 l, U.S.A. Abstraet--Skarn of the Dongmyeong tungsten mine developed at the...limestone and a Jurassic granodiorite. Early, massive skarn is marked by diopsidic clinopyroxene and wollastonite...limestone at the skarn front and salitic elinopyroxene within granodiorite. Later massive skarn has clinopyroxenes...deposition occurred at the end of the early skarn stage. Late skarn formed narrow areas of hedenbergitic clinopyroxene...deposition. In the waning portions of the late skarn stage, base-metal sulfides were superimposed upon |  | Xiang, Jie, Xiao, Keyan, Carranza, Emmanuel John M., Chen, Jianping, Li, Shi (2020) 3D Mineral Prospectivity Mapping with Random Forests: A Case Study of Tongling, Anhui, China. Natural Resources Research, 29 (1) 395-414 doi:10.1007/s11053-019-09578-2 | Journal (article/letter/editorial) | | Tongling ore cluster, which is the most representative skarn ore-concentrated area in the MiddleâLower Yangtze...Tongling ore cluster is the most representative skarn ore-concentrated area in the MLYB, and it is situated...as follows. This model can be called ââporphyryâskarnâstratabound CuâAuâMoâFe depositsââ. The Mesozoic...mineralization in this ore cluster (Fig. 2): (1) Stratabound skarn type formed by further superposition and compound...Carboniferous (Chang et al. 1991). Stratabound skarn orebody occurs in single or multiple layers, which |  | | Journal (article/letter/editorial) | | in the Kamioka Mining District, Gifu Prefecture, Central Japan, in Relation to the Role of Graphite in...of Science, Nagoya University, Chikusa, Nagoya, Japan Pyrometasomatic lead-zinc ore deposits of the Kamioka...occur in the Hida metamorphic complex of central Japan. The pyrometasomatie ore deposition was followed...in skarn, ores and in the surrounding crystalline limestone. 81mC values of graphite in the skarn and...graphites in the crystalline limestone. Graphite in the skarn and ores is considered to be remains of graphite |  | | Report (volume) | | references. Supt. of Docs. no.: I 19.3: 1930 1. Skarn. 2. Gold ores. I. Theodore, Ted. G. II. Series....cited 23 Bibliography of additional gold-bearing skarn references 32 FIGURES 1. 2. 3. 4. 5. 6. 7. 8. 9...Au-bearing skarn deposits 2 Graphs showing distributions of gold grade for Au-bearing skarn deposits 3...gold skarn classification schemes based on metal ratios 4 Schematic cross sections of Au-skarn deposits...north-central Nevada 8 Map showing distribution of Au-skarn districts and geological provinces in the cordillera |  | | Book | | EXPLORATION DEVELOPMENTS IN ECONOMIC GEOLOGY, 24 W-Sn skarn deposits and related metamorphic skarns and granitoids...Cataloging-in-Publication Data Kwak, T e u n i s A . P . W-Sn skarn deposits and related metamorphic skarns and granitoids...geology ; 24) Bibliography: p. Includes indexes. 1. Skarn. 2. Granite. 3. Rocks, Metamorphic. 4. Tungsten...PREFACE This book is concerned with the study of skarn deposits having anomalously high tin or tungsten...true of "distal" or far-from-contact replacement (skarn) deposits, where base metal and silver contents |  | | Journal (article/letter/editorial) | | 2016 Available online xxxx Keywords: Stratiform skarn Multiple sources Genesis Suoerkuduke Cu-Mo deposit...distinct characteristics from typical contact metasomatic skarn deposits. No carbonate rocks and coeval magmatic...bidirectional skarn zonation as follow: garnet skarn in the center, and epidote-garnet skarn, epidote skarn and...and diopsidehedenbergite skarn (with no symmetrical distribution) in outer parts. The sulïŹdes are pyrite...pyroxene andesite and tuffaceous sandstone to form the skarn. The decrease in the temperature and fO2 values |  | | Journal (article/letter/editorial) | | Geology and geochemistry of the Changlongshan skarn iron deposit, Anhui Province, China G. Xu a a,)...accepted 27 October 1999 Abstract The Changlongshan skarn iron deposit is located in the northeastern part...Prograde skarn alteration consists mainly of andradite and hedenbergite whereas retrograde skarn is characterized...measurements yield a homogenization temperature range for skarn alteration of 423 to 4788C, with a salinity of 34...magmatic water was involved in the early stage of skarn formation Ćœ d18 O H 2 O s 3.7â° to 7.6â°, d D H 2 |  | | Journal (article/letter/editorial) | | elsevier.com/locate/gr The generation of a stratiform skarn and volcanic exhalative PbâZn deposit (Sawusi) in...Available online 17 January 2012 Keywords: Stratiform skarn Grunerite 40Ar/39Ar age Scale of dimetasomatism...of the skarn were described. Detailed electron microprobe analysis was performed on the skarn minerals...to the stratiform skarn characterized by alternate bands of dark garnetâbiotite skarn and light gruneriteâbiotite...gruneriteâbiotite skarn. Mineralâchemical analysis shows that the stratiform skarn of the Sawusi deposit consists |  | Zeng, Qingdong, Liu, Jianming, Zhang, Zuolun, Jia, Changshun, Yu, Changming, Ye, Jie, Liu, Hongtao (2009) Geology and Lead-Isotope Study of the Baiyinnuoer Zn-Pb-Ag Deposit, South Segment of the Da Hinggan Mountains, Northeastern China. Resource Geology, 59 (2) 170-180 doi:10.1111/j.1751-3928.2009.00088.x | Journal (article/letter/editorial) | | Zn-Pb-Ag mineralization is hosted predominantly by skarn, which occurs as bedding-parallel lens that pinch...at the margins of the main economic zone. Three skarn stages are identified at the deposit: (i) garnet-clinopyroxene;...zinc-lead-silver skarn deposit. Keywords: China, Da Hinggan Mountains, Pb isotope, Zn-Pb-Ag skarn deposit. ...1994) suggested that the Baiyinnuoer deposit is skarn type and that the mineralization was related to...(Fig. 2). The Qingfengshan Formation is a shallow sea flysch formation, and occurs as the core of the |  | | Journal (article/letter/editorial) | | magnesian skarns of the periclase and monticellite metasomatic PT facies at contacts of dolomites with granitoid... are the most widespread minerals of magnesianâskarn deposits, often forming economic concentrations...borates are different in the outer zones of magnesian skarn aureoles developing after dolomites in contact with...rock-forming and ore minerals [1â5]. At shallower depth skarn occurrences, magnesiumâ iron borates occur as magnesioludwigite...volcanic rocks of Chimino, Oza, Tuoro, Volcano Island, and Vesuvius volcanoes in Italy [8â10]. Supplementing |  | ZuÌrcher, Lukas, Ruiz, JoaquiÌn, Barton, Mark D. (2001) Paragenesis, Elemental Distribution, and Stable Isotopes at the PenÌa Colorada Iron Skarn, Colima, Mexico. Economic Geology, 96 (3) 535-557 doi:10.2113/gsecongeo.96.3.535 | Journal (article/letter/editorial) | | and Stable Isotopes at the Peña Colorada Iron Skarn, Colima, Mexico LUKAS ZĂRCHER,â JOAQUĂN RUIZ, AND...Tucson, AZ 85721 Abstract The Peña Colorada iron skarn is located in the southern part of the Guerrero...hornfels and garnet (Gr61Am36Ad3) disseminations. Metasomatic pyroxene, garnet, and plagioclase cut the early...35-m-thick marl located 200 m above the intrusion. Metasomatic pyroxene and garnet have average compositions...mineralization was deposited contemporaneously with metasomatic plagioclase, forming a shallow-dipping replacement |  | | Journal (article/letter/editorial) | | Shizuoka University, 836 Ohya, Shizuoka, 422-8529 Japan Skarn minerals in a contact metamorphic aureole often...collected from some contact metamorphic aureoles in Japan (Wada et al., 1998), a regional metamorphic terrain...oxygen isotopic profiles around a low pressure metasomatic wollastonite reaction front in a marble of the...the Hida metamorphic terrain, central Japan, display typical metamorphic fluid-enhanced isotopic zonations...profiles in the metasomatic skarn veins, showed a trend of oxygen isotopc variation along the skarn vein-marble |  | | Journal (article/letter/editorial) | | metalliferouschemicalsedimentand is not related to igneous-metasomatic processes.This suiteis characterizedby well-...calc-silicateandore minerals,compositions, andtextures.The metasomatic skarnsare virtuallyunaffectedby the regionaldeformation...competentnatureof garnet-richrocks.Metamorphismof the metasomatic skarnsisevidenced, however,by the developmentof... usedin decipheringother complexmetamorphic-metasomatic ore districts. Introduction As Einaudiet al...skarndeposits,oneof the morecontentious aspects of skarn studies involves distinguishingbetween metamorphicand |
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