| | Book | Jaroslav Dostal Editors Mineral Resources of Mongolia Modern Approaches in Solid Earth Sciences Volume...Jaroslav Dostal Editors Mineral Resources of Mongolia Editors Ochir Gerel Geoscience Center Mongolian...University of Science and Technology Ulaanbatar, Mongolia Bayaraa Batkhishig Department of Geology and Hydrogeology...University of Science and Technology Ulaanbaatar, Mongolia Franco Pirajno Centre for Exploration Targeting...Gateway East, Singapore 189721, Singapore Preface Mongolia occupies the central part of the giant Central | | Vladimirov, A. G., Anh, Phan Luu, Kruk, N. N., Smirnov, C. Z., Annikova, I. Yu., Pavlova, G. G., Kuibida, M. L., Moroz, E. N., Sokolova, E. N., Astrelina, E. I. (2012) Petrology of the tin-bearing granite-leucogranites of the Piaoak Massif, Northern Vietnam. Petrology, 20 (6) 545-566 doi:10.1134/s0869591112050074 | Journal (article/letter/editorial) | tinbearing graniteleucogranites located in the Caobang Province of Northern Viet nam compose a stocklike hypabyssal...beginning of 20th century (Lacroix, 1933). The quartz– vein–greisen ores with uranium–thorium mineraliza tion...by lowgrade rare metal granites of the Bana Complex in Central Viet nam (Phan Luu Anh, 2010), whereas...basaltic andesite–trachybasaltic andesite–rhyolite and quartz–diorite–granosyenite– granite–leucogranite magmatic...denote the raremetal granite massifs of the Piaoak Complex (К2), filled boxes in the Southern Vietnam are | | Lefebvre, Marie G., Romer, Rolf L., Glodny, Johannes, Kroner, Uwe, Roscher, Marco (2019) The Hämmerlein skarn-hosted polymetallic deposit and the Eibenstock granite associated greisen, western Erzgebirge, Germany: two phases of mineralization—two Sn sources. Mineralium Deposita, 54 (2) 193-216 doi:10.1007/s00126-018-0830-4 | Journal (article/letter/editorial) | deposit and the Eibenstock granite associated greisen, western Erzgebirge, Germany: two phases of mineralization—two...units at ~ 320 Ma, and locally also developed greisen mineralization. Cassiterite is the main ore mineral...mineral in the Hämmerlein skarn and in greisen mineralizations associated with the Eibenstock granite....Keywords Erzgebirge . Hämmerlein . Tin . Skarn . Greisen . Ore deposits . Eibenstock granite Introduction...granite along with a new input of Sn into the skarn. Greisen mineralization is directly related to the emplacement | | | Journal (article/letter/editorial) | of focused fluid flow, as evidenced by abundant quartz veins, widespread wall-rock alteration, or porphyry...of the following hydrothermal characteristics: quartz veins and potassic alteration, sodic-calcic and...and relatively coarse grained muscovite-quartz (greisen). Quartz veins and potassic alteration are focused...observed on the deep flanks of certain systems; and greisen occurs directly beneath ore within and beneath...Laramide, mid-Mesozoic) Limit of Basin and Range Province copper deposits post-Laramide cover Laramide | | | Journal (article/letter/editorial) | presence of OH groups in cassiterites from natural occurrences by polarised infrared (IR) spectroscopy. OH groups...Czech Republic, Portugal, France, England, Russia, Mongolia, Bolivia and Brazil, representing also different...Republic Modoto, Mongolia Panasqueira, Portugal La Villedas, France Potosi, Bolivia Greisen 0.045 light...light brown 0.0049 Greisen 0.049 light brown 0.0110 Greisen Hydrothermal vein deposit ? 0.049 0.053...Cassiteritesulphide type deposit Tin melt Tin melt Greisen= quartz vein ? cut gemstone ? 0.053 yellow 0.0170 | | | Journal (volume) | 259. 22 pages, 8 figures and 4 tables. One small greisen-type genthelvite occurrence has been found in the...Eurajoki area and three in the Kymi area. The greisen bodies are associated wirh topaz-bearing biotite...fluorite, ± quartz, ± relict feldspar, ± topaz, ± cassiterite, ± su lfide s, ± apatite. Quartz is usually...A chemical analysis of the genthelvite-bearing greisen from Eurajoki showed that the rock contains enriched...vite from the Eurajoki and two of the K ym i occurrences showed that the minerals are almost identical | | | Journal (article/letter/editorial) | Abstract-There are over a hundred deposits and occurrences of molybdenum mineralization in Bulgaria. With...genesis they belong to the magmatic (?), pegmatitic, greisen, hydrothermal and iron-sulphide endogenic classes...molybdenite (f sphalerite) greisens and pseudogreisens (quartz-sericite-fluorite metasomatites), the molybdenum-tungsten-bearing...(scheehte, molybdenite, pyrite) quartz-feldspar metasomatites, quartz-molybdenite and molybdenite. The...INTRODUCTION MOLYBDENUM MORETHAN a hundred occurrences with a proved molybdenum mineralization are known | | | Journal (article/letter/editorial) | general idea of the great variety of geological occurrences of molybdenite. Some information about the g...disseminated grains in quartz monzonite, and as good crystals in vein quartz with py,ite" (Galbraith...miles S.W. of Kingman, Hualpai Mts., 2Hr Many greisen-pegmatite deposits are known in this area (Wilson... 2Ht Molybdenite occurs with chalcopyrite in quartz veins in a granite (Horton, 1916,p.62). Harvard...particular specimen consists of flakes of molybdenite in quartz and has been mentioned by Horton (1916, p. 59) | | Runyon, Simone E., Seedorff, Eric, Barton, Mark D., Steele-MacInnis, Matthew, Lecumberri-Sanchez, Pilar, Mazdab, Frank K. (2019) Coarse muscovite veins and alteration in porphyry systems. Ore Geology Reviews, 113. 103045 doi:10.1016/j.oregeorev.2019.103045 | Journal (article/letter/editorial) | U R N AL PR E- Keywords: porphyry copper, greisen, coarse muscovite alteration, hydrothermal alteration...compared to coarse hydrothermal muscovite O (greisen) in lode Sn-W-Mo systems. Basin and Range extension...porphyry Mo-Cu systems related to stocks ranging from quartz monzonite to granite in composition form at shallower...many deposits in the Basin and Range extensional province has exposed deep and distal portions of certain...documentation of Na-Ca and coarse muscovite (“greisen”) alteration in the roots of a PR few deposits | | | Report (issue) | Semiquantitative spectrographic analyses of veins, greisen, and granite, ~ary Lee mine area -------------...ore. The late date of recognition of some of the complex ores of the district is significant and suggests...result in the discovery of other minable deposits. Complex ore deposits are spatially associated with granitic...Scheelite deposits in calc-silicate rocks and greisen deposits near Tappan Mountain that contain tin...2 EXPLANATION strongly deformed metamorphic complex which includes biotite gneiss and schist of the | | Tripp, Richard B., Crim, William D., Hoffman, James D., O'Leary, Richard M., Risoli, Donald A. (1986) Mineralogical and geochemical maps showing the distribution of selected minerals and elements found in the minus-80-mesh stream-sediment and related minus-30-mesh heavy-mineral-concentrate samples from the Circle quadrangle, Alaska. Open-File Report Vol. 1986 (83-170) US Geological Survey doi:10.3133/ofr83170f | Report (issue) | the remainder was panned to remove most of the quartz, feldspar, organic material, and clay-sized material...eight tracts of land which may contain mineral occurrences based on the mineralogy and chemistry of the...Tertiary-Cretaceous peraluminous granites and related tin vein/greisen areas (TKg) and the hornfelsed quartzitic schists...samples suggests that numerous tin vein and greisen occurrences may be found in this tract (pi. 1, map 1;...concentrates indicates numerous tin vein/greisen and tungsten skarn occurrences within the tract (pi. 1, map 1; | | | Book | the world and regions noted for significant occurrences are generally termed metallogenic provinces....considering North America. If all minor tin occurrences are plotted on a large scale map of the continent...continent, it is possible to outline a province extending from Alaska to Mexico. (Sainsbury et al. 1969...1969, Schuiling, 1967a). However, the occurrences are extremely dispersed, frequently of little more than...would hesitate to nominate the entire zone as a province. Similarly global scale linear tin belts can be | | | Journal (article/letter/editorial) | progressive alteration process, finally leading to greisen formation. The path of the process was reconstructed...indicators for good reasons. First, their structure is complex, with many different sites allowing introduction...respectively places, where gneiss, metasomatite, greisen and leptinite samples have been collected. veins...environment, which is accompanied by tourmaline occurrences. The W – Sn minerals of no economic significance...processes like albitization preceded greisen formation, and the whole complex of tourmaline-bearing rocks form | | | Report (issue) | _ ~ Greisen---------------------------------------Distribution of beryllium deposits and greisen ___...beryllium ores ____________________________________ _ Greisen pipes ______________________________ _ Vein deposits...of the beryllium deposits _________________ _ Greisen areas and representative mines _______________...Structure _________________________________ _ Greisen ___________________________________ _ Boomer mine...area. Map of fluorite deposits and beryllium- and greisen-rich areas. Geologic map and sections of the Boomer | | Korostelev, P. G., Gonevchuk, V. G., Semenyak, B. I., Gorelikova, N. V., Karabtsov, A. A., Kokorin, A. M., Kononov, V. V., Orekhov, A. A., Safronov, P. P., Sinyakov, E. Ya. (2009) The Dzhalinda Deposit in the Amur Region, Russia: Genesis and position in the classification of tin deposits. Geology of Ore Deposits, 51 (4) 305-316 doi:10.1134/s1075701509040047 | Journal (article/letter/editorial) | California are also known to contain wood tin occurrences. From the beginning of World War II until the...KOROSTELEV et al. ore composition, abundance of quartz, and some other features. Hence, new evidence for...which also controls a number of Sn-bearing greisen occurrences, as well as NNE-trending and steeply dipping...rhyolite down to a depth of 25–30 m and contain quartz–sericite and silicified (up to flintlike) fragments...related to extrusive rhyolite, called intrusive quartz porphyry by Itsikson et al. (1959). These rocks | | Henley, H. F., Brown, R. E., Brownlow, J. W., Barnes, R. G., Stroud, W. J. (2001) Grafton-Maclean Metallogenic Map (SH/56-6, SH/56-7) Metallogenic Study and Mineral Deposit Data Sheets. Geological Survey of New South Wales | Report (issue) | England sapphires (upper left); molybdenite and quartz from Kingsgate (lower left, see Photograph 34);...34); and crystals of cassiterite (dark brown) in a quartz–topaz vein, Taronga prospect (right, see Photograph...more than two thousand mineral deposits and occurrences which occur in the map sheet area. The dominant...molybdenum, gold, base metal, arsenic and gem occurrences in and around highly fractionated leucocratic...sediments and volcanic units and accretionary complex oceanic sediments and volcanic bodies. These rocks | | | Journal (article/letter/editorial) | cathodoluminescence to magmatic quartz in a tin granite ± case study from the Schellerhau Granite Complex, Eastern Erzgebirge...(Eastern Erzgebirge, Germany) is shown on the basis of quartz textures. Similar grain size, similar grain habit...fractionated tin-bearing granitic melts, and links quartz cathodoluminescence (CL) with microanalytical studies...the basis of quartz textures. The relative chemical and structural stability of quartz is responsible...responsible for the conservation of quartz generations of di€erent size, habit and structural state in granites | | | Journal (volume) | bismuth minerals, including russellite, within greisen veins in the western Mourne Mountains, Northern...mining at the combined Beckermet – Florence mine complex in the late 1970s. A substantial proportion of...part of the extensive Beckermet – Florence mine complex which was finally abandoned in 1980. During its...comprise a substantial part of a wider Cumbrian province of hematite mineralisation that includes deposits...elements of the original coral are preserved in quartz surrounded by massive hematite. Specimen collected | | | Book | Ukrainian and Aldan shields, the Baikal-Patom province, etc. (Fig. 1). Due to the work of A. Fersman...(Molodyozhnoye), as well as the discovery of a major province of polymetallic (Kholodninskoye) and copper ores...prolonged period and for which we can trace a complex history in the transformation of primary ore concentrations...magrnatic liquation and segregation types, skarn, greisen, numerous and varied high-, medium- and low-temperature...tectonic province - craton (East European, Siberian, etc.) Global tectonic belt (e.g. Urals-Mongolia) Tectonic | | | Report (volume) | area). The Healy quadrangle is a geologically complex and diverse area along the accretionary margin...Paleozoic) Km Melange(?) (Cretaceous*) Pqs Pelitic quartz schist (Paleozoic and Precambrian?) * Age shown...1986). Rock Units Two major areas of mineral occurrences in the Healy quadrangle are the Upper Chulitna...quadrangle, was developed in a breccia zone above a quartz diorite porphyry and produced 1,600 oz (ounce)...ultramafic rocks in the district. A tin-bearing greisen in a small granitic stock in Ohio Creek (T. 20 | | | Book (volume) | types and ore formations of mineral deposits and occurrences in Afghanistan. Magmatic mineral deposits. (V...87 Chapter 9 Catalogue of mineral deposits, occurrences, showings and mechanical mineralogical haloes...iii List of Tables Table 1 Types of mercury occurrences. Table 2 Metallogenetic epoch of Afghanistan...1:4,000,000. Annex 2 Map of ore deposits and occurrences of ferrous metals and fuel minerals of Afghanistan...000,000. Annex 3 Map of mineral deposits and occurrences of tin, tungsten, molybdenum and bismuth of Afghanistan | | | Report (Issue volume) | in the background VOLUME 1 GEOLOGY, MINERAL OCCURRENCES, EXPLORATION AND GEOCHEMISTRY R.E. Brown, H...and mineral occurrences of the Rivertree silver field Map 3 - Mines and mineral occurrences of the Boonoo...and mineral occurrences of the Boorook area. Map 5 - Geology, mines and mineral occurrences of the Wilsons...Downfall area. Map 6 - Geology, mines and mineral occurrences of the Mount Carrington area. Map 7 – Geology...framework for the more than 650 mineral deposits and occurrences which occur in the subject area. The basement | | | Journal (issue) | Slovakia The geology of Slovakia is as varied and complex as the UK, it is like a bigger version of the West...these species are high temperature polymorphs of quartz. Soon everyone had some of this material in specimens...from the fairly common ore materials, often on quartz with calcite and siderite, such as chalcopyrite...red patches of cinnabar often in the same spongy quartz matrix as micro crystals of realgar and native...porphyroids and the veins composed of ankerite-quartz-sulphide composition with abundant siderite in | | | Report (issue) | to the knowledge of the geology and mineral occurrences in Australia. Most of these men later headed...heed of Lang Hancock’s knowledge of mineral occurrences in the Pilbara area. In 1959, Rio Tinto signed...new production has come from discoveries in a complex structural geological environment south of Kambalda...Duval) has recently discovered epithermal style quartz gold vein deposits in volcanic rocks at Pajingo...of the Eastern Bangemall Basin and the Paterson Province, in Geol. Surv. of West. Aust. Ann. Rpt, 1975 | | Dumoulin, Julie A., Bradley, Dwight C., Harris, Anita G. (1998) Sedimentology, conodonts, structure, and correlation of Silurian and Devonian metasedimentary rocks in Denali National Park, Alaska: A section in Geologic studies in Alaska by the U.S. Geological Survey, 1996. Professional Paper Vol. 1595. US Geological Survey doi:10.3133/70180424 | Report (volume) | lakes at the Siniktanneyak Mountain ultramafic complex in the western Brooks Range, Alaska. The waters...ultramafic complex. The mined site is located at Red Mountain, an alpine-type ultramafic complex 16 km from...Mountain, an undisturbed alpine-type ultramafic complex in the western Brooks Range about 240 km northeast...July 22, 1994, from the Red Mountain ultramafic complex. Five of the samples represent stream runoff, and...Northern contact of the Red Mountain ultramafic complex showing distinct color and vegetation contrasts |
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