 | Barkov, A. Y., Martin, R. F., Fleet, M. E., Nixon, G. T., Levson, V. M. (2008) New data on associations of platinum-group minerals in placer deposits of British Columbia, Canada. Mineralogy and Petrology, 92 (1) 9-29 doi:10.1007/s00710-007-0192-6 | Journal (article/letter/editorial) | | data on associations of platinum-group minerals in placer deposits of British Columbia, Canada A. Y. Barkov1...platinumgroup minerals (PGM; 0.1–1 mm in size) from 11 placer samples collected from Holocene fluvial placers...olivine [Fo86.8–91.5 Fa7.9–12.5], from a PGM-bearing placer located in the vicinity of the Tulameen complex...were analysed. The compositional ranges of these placer silicates are comparable to those of clinopyroxene...Tulameen complex. The majority of the analysed placer PGM grains were probably derived from Alaskan-type |  | Van Gosen, Bradley S., Hammarstrom, Jane M., Kellogg, Karl S., Berg, Richard B. (1998) Map showing areas with potential for garnet resources in bedrock and placer in the Blacktail Mountains and the Gravelly, Greenhorn, Ruby, and Snowcrest ranges of southwestern Montana. Open-File Report Vol. 1998 (98-224) US Geological Survey doi:10.3133/ofr98224a | Report (issue) | | minimal or no potential for garnet in bedrock or placer. These areas consist of Archean marbles or ultramafic...Highway 41 from Dillon to Twin Bridges; (2) The northern boundary is State Highway 287 from Twin Bridges...Ennis; (3) The eastern boundary is the Madison River from Ennis to Raynolds Pass (4 km west of Earthquake...basins. Alluvial deposits with potential for garnet placer resources Qa Aqf Qf Qf Qa STUDY AREA Ruby Garnet...deposits at the Sweetwater Garnet placer mine, is naturally occurring almandine, which exhibits deep shades |  | | Journal (article/letter/editorial) | | formation of placer deposits. Of the approximately 150 gemstones, roughly 40 can be recovered from placer deposits...that plays the major part among the placer-type gemstones (almandine, apatite, (chrome) diopside, (chrome)...gemstones in magmatic and metamorphic gem deposits. All placer types known to be relevant for the accumulation...minerals and rocks but do not sort and separate placer-type minerals. Nevertheless till (unconsolidated...time” (Dill and Weber 2013). Keywords: gemstones; placer; heavy and light minerals; landforms; climate; |  | | Journal (article/letter/editorial) | | Goose Creek Canyon, 5 miles east of New Meadows, placer deposits: chromite, CORUNDUM, diamond, garnet,...sulfur. Eear Lake County Blackstone mine, Bear River Range, west of Montpelier: cerussite, sphalerite, and...pyrite. Blaine County Bellevue King prospect, Wood River district: veins and crystals of laumontite to 2...pyrite, quartz, and stibnite. Bullion mine, Wood River district: acanthite and silver. Camas mine, Hailey...Jay Gould mine, Wood River district: lead and minium. Jennie P. prospect, Wood River district: chalcopyrite |  | | Journal (article/letter/editorial) | | of the Heavy Mineral Suite in a Holocene Beach Placer, Barrytown, New Zealand Hannah C. Wells and Richard...January 2020 Abstract: The placer deposit at Barrytown, New Zealand, has been worked...been identified with different minerals. A wide range of ore minerals, or potential useful industrial...Keywords: placer; laser ablation ICP-MS; SEM EDS; ilmenite; zircon; monazite 1. Introduction The placer deposits...[7]. The garnet has been reported to be mostly almandine [6]. The zircon has a high degree of purity with |  | Kislov, Evgeniy V., Aseeva, Anna V., Vanteev, Vladislav V., Sinyov, Anton Yurievich, Eliseeva, Olga A. (2022) Naryn-Gol Creek Sapphire Placer Deposit, Buryatia, Russia. Minerals, 12 (5) 509 doi:10.3390/min12050509 | Journal (article/letter/editorial) | | Article Naryn-Gol Creek Sapphire Placer Deposit, Buryatia, Russia Evgeniy V. Kislov 1, * , Anna V. Aseeva...the Russian Academy of Sciences, 670047 Ulan-Ude, Russia; vanteev997@mail.ru Far East Geological Institute...Russian Academy of Sciences, 690022 Vladivostok, Russia; aseevaanna78@gmail.com (A.V.A.); antsinyov@yandex...Eastern Federal University, 690022 Vladivostok, Russia Correspondence: evg-kislov@ya.ru Abstract: A new...Naryn-Gol Creek placer of the Dzhida volcanic field (Russia). In this placer deposit, sapphire associates |  | Dill, H. G., Khishigsuren, S., Majigsuren, Y., Myagmarsuren, S., Bulgamaa, J., Hongor, O. (2006) A Review of the Non-metallic Industrial Minerals of Mongolia: The Impact of Geological and Geographical Factors on their Formation and Use. International Geology Review, 48 (2) 129-173 doi:10.2747/0020-6814.48.2.129 | Journal (article/letter/editorial) | | across central Mongolia, along a transect from the northern mountain taiga to the desert steppe of the Gobi...means that the average annual temperature is in the range of 0 to 10°C and that the average annual precipitation...hydrology have a significant influence on whether a deposit can be worked in these parts of the continental...connects Ulaanbaatar with towns in southeastern Russia. Erdenet and Baganuur, two major cities in Mongolia...position of drainage systems of the Kerulen (Kherlen) River (1) and the study site for Quaternary deposits in |  | | Journal (article/letter/editorial) | | Original Article rge_105 388..399 Heavy Mineral Placer Sand Deposits of Kontiagarh Area, Ganjam District...Bhubaneswar, Orissa, India Abstract The Kontiagarh placer deposit in the Ganjam district, Orissa, India extends...350 mm in size, with a peak distribution in the range between 180 and 125 mm. Ilmenite shows exsolution...gneiss, are the source of heavy minerals for this deposit. The bulk sample has 7.30% ilmenite, 5.24% sillimanite...06% zircon and 0.52% other heavy minerals. The deposit has good potential for economic exploitation of |  | | Report (issue) | | hematite is from the Wessels Mine near Hotazel in northern Cape Province, South Africa. Dan Carlson specimen;...andradite (variety "demantoid") originating in Russia is enhanced through heating in an oxidizing environment...Objects BY INGRID S. WEBER 22 Classic Garnets: Almandine BY GLORIA STAEBLER AND PAUL POHWAT 28 New England...various members). Of these fifteen species, six almandine, andradite, grossular, pyrope, spessartine, and...constitute the "pyralspite" group, named for pyrope, almandine, z and spessartine. Those with Ca + in the X-site |  | | Journal (article/letter/editorial) | | (PGMs) from the Vestřev pyrope-rich garnet placer deposit, Bohemian Massif Jan Pašava a,⁎, Jan Malec...minerals Os-isotope composition Pyrope-rich garnet placer Krkonoše Piedmont Basin Bohemian Massif a b s...fraction from a Holocene pyrope-rich garnet placer deposit at Vestřev (Krkonoše Piedmont Basin, Bohemian...(TMA) and Re-depletion model age (TRD) model ages range from ~0.4 to ~1.0 Ga and most likely reflect a long...the territory of the Bohemian Massif, the only placer historically containing native Pt (up to 42 g/t) |  | Kaminsky, F. V., Zakharchenko, O. D., Khachatryan, G. K., Griffin, W. L., Channer, D. M. DeR. (2006) DIAMOND FROM THE LOS COQUITOS AREA, BOLIVAR STATE, VENEZUELA. The Canadian Mineralogist, 44 (2) 323-340 doi:10.2113/gscanmin.44.2.323 | Journal (article/letter/editorial) | | diamond crystals from the Los Coquitos placer on the Guaniamo River in Bolivar State, Venezuela, has been...diamond from the Quebrada Grande kimberlite sills and placer deposits, both located 50 km to the southeast.... The diamond crystals in the Los Coquitos placer are generally similar to those of the Quebrada Grande...morphological differences. Diamond from the Los Coquitos placer has a higher total nitrogen content (Ntot = 719...pyroxene (mg in the range 0.683–0.849), and lower Fo component in olivine (mg in the range 0.926–0.932), compared |  | | Journal (article/letter/editorial) | | Dzhaltul microgabbroic intrusion, Krasnoyarskiy kray, Russia Gennadiy I. Shvedov and Andrei Y. Barkov With 4...intrusion in the Siberian Platform, Krasnoyarskiy kray, Russia. The development of submicrometric grains of PGM...microgabbroic complex, Dzhaltul, Krasnoyarskiy kray, Russia. Introduction The Dzhaltul microgabbroic intrusion... in the Siberian Platform, Krasnoyarskiy kray, Russia (Ryabov et al. 2000, Ryabov & Lapkovsky 2010a,b)...the Lukkulaisvaara layered intrusion, northern Karelia, Russia (baRkov et al. 1996, 2004). Other species |  | | Journal (article/letter/editorial) | | Topographic Gradients and lode gold sourcing recorded by placer gold morphology, geochemistry, and mineral inclusions...inclusions in the east fork san gabriel river, california, U.S.A Erik B. Melchiorre, Justin Henderson PII:...Topographic Gradients and lode gold sourcing recorded by placer gold morphology, geochemistry, and mineral inclusions...inclusions in the east fork san gabriel river, california, U.S.A, Ore Geology Reviews (2019), doi: https://doi... TOPOGRAPHIC GRADIENTS AND LODE GOLD SOURCING RECORDED BY PLACER GOLD MORPHOLOGY, GEOCHEMISTRY, AND MINERAL INCLUSIONS |  | | Report (chapter) | | principal garnet end-member compositions (pyrope, almandine, spessartine, uvarovite, grossular and andradite)...of detrital garnets from Neogene sandstones of northern Sabah, Borneo for which provenance is unknown...matched garnets to local sources. However, the range of garnet compositions is very wide, and it is...necessary to calculate the common garnet end-members (almandine, andradite/schorlomite, grossular, pyrope, spessartine...of detrital garnets from Neogene sandstones of northern Borneo. Garnet mineralogy The garnet group can |  | Giuliani, Gaston, Fallick, Anthony E., Feneyrol, Julien, Ohnenstetter, Daniel, Pardieu, Vincent, Saul, Mark (2011) 18O/16O and V/Cr ratios in gem tsavorites from the Neoproterozoic Mozambique metamorphic belt: a clue towards their origins?. Mineralium Deposita, 46 (7) 671-676 doi:10.1007/s00126-011-0355-6 | Journal (article/letter/editorial) | | geographical sources of the main productive areas from northern and southern Tanzania, Kenya, and Madagascar....of quartzite, kyanite ± sillimanite—biotite ± almandine graphitic gneiss, graphitic gneiss, calc-silicate...fold belt (Feneyrol et al. 2010), and Umba in northern Tanzania, Ruangwa and Tunduru in southern Tanzania...the tsavorite samples from the primary deposits range from 9.5‰ to 21.1‰ (see ESM Table 1). The O-isotope...5), corresponds to tsavorite from the Ruangwa deposit in southern Tanzania; (2) the second δ18O set, |  | | Journal (article/letter/editorial) | | Technical Note Separation of Monazite from Placer Deposit by Magnetic Separation Kwanho Kim and Soobok...beneficiation experiments were conducted using a placer deposit of North Korea, on which limited information...result of a mineralogical analysis, in this placer deposit, monazite and some amount of xenotime were...to the conventional process for rare earth placer deposit and confirmed the possibility of mine development...development. Keywords: rare earth elements; monazite; placer deposit; beneficiation; ilmenite; magnetic separation |  | | Journal (article/letter/editorial) | | from the text by simply using the code of each deposit in the chart. This code can be created by combining... . . . . 3.4. Metamorphic chromium (gemstone) deposit . . . . . . . . . . . 3.5. Chromium supply and... . . . . . . . . 11.3. Structure-bound copper deposit . . . . . . . . . . . . . . . . . . . . . . . ...the only inexhaustible low-grade, large-tonnage deposit on earth? The first step has already been taken...mineral deposits to pigeonhole or classify the wide range of mineral deposits. Some provided a general overview | | | Journal (article/letter/editorial) | | from the text by simply using the code of each deposit in the chart. This code can be created by combining... . . . . 3.4. Metamorphic chromium (gemstone) deposit . . . . . . . . . . . 3.5. Chromium supply and... . . . . . . . . 11.3. Structure-bound copper deposit . . . . . . . . . . . . . . . . . . . . . . . ...the only inexhaustible low-grade, large-tonnage deposit on earth? The first step has already been taken...mineral deposits to pigeonhole or classify the wide range of mineral deposits. Some provided a general overview |  | | Book | | Guidebook for the Field Excursions in the Far East of Russia: September 1-20, 2004 © INTERNATIONAL ASSOCIATION...CONFERENCE 1 - 20 September, 2004 Vladivostok, Russia EXCURSION GUIDEBOOK Edited by A.I. Khanchuk,...Branch, Russian Academy o f Sciences, Vladivostok, Russia 2 Natural History Museum, Department o f Mineralogy...stretching from the A rctic Ocean in the north to the Russia/C hina/K orea boundary in the south. In the east...ish A utonom ous Oblast (province), Koryak and Chukotka N ational D istricts (Fig. 1). A pproxim ately |  | | Book | | and Tulawaka, all of which are located in the northern region of the Dodoma (Archaean) craton's Lake...scattered occurrences are widespread in Kabale (Northern Region), Kisoro and Kanungu districts (Western...(Western Region), and in Karamoja Subregion (Northern Region). Considerable resources of iron ore are found...Region), and in Kotido OF THE CONGO District (Northern Region). Approximately two-thirds of the country...green, opaque hexagonal crystals. Crystal size can range from less than 1 cm to several metres. Beryl is |  | | Journal (article/letter/editorial) | | and tetralicilrilc.. Palmer Canyon vermiculite deposit (sec. I X . T. 24 N . . K . 70 W.), also known...ilincnitc.), i i i i A PY rope. Roff vermiculite deposit: .we Platte County. Shanton iron mine (sec. 8,...picroilmenite (magnesium ilmenite). and pyrope (pyropc-almandine megacrysts to 5 inches across). Strong copper... allanite. beryl, biotite, tluorite. garnet (almandine?), ilnienitc. magnetite, microcline, monazite...quiirtz, and schorl (Houston 196 I ). Boden placer deposit (T. 17 N., R. X I W.), 35 miles W o f Laramie |  | | Report (issue) | | R. FORCE Metamorphic Source Rocks of Titanium Placer Deposits-A Geochemical Cycle By E. R. FORCE Rutile...-Force, E. R. Metamorphic source rocks of titanium placer deposits, a geochemical cycle.-Blake, M. C., Jr...___ _ (B) Metamorphic source rocks of titanium placer deposits-A geochemical cycle, Al by E. R. Force...mineralogic maturity have the highest average values; placer concentrations of heavy minerals, however, are...426 292 .50 .40 584 245 METAMORPHIC ROCKS The range of Ti02 content of metamorphic rocks appears to |  | Dill, Harald G., Weber, Berthold, Melcher, Frank, Wiesner, Werner, Müller, Axel (2014) Titaniferous heavy mineral aggregates as a tool in exploration for pegmatitic and aplitic rare-metal deposits (SE Germany) Ore Geology Reviews, 57. 29-52 doi:10.1016/j.oregeorev.2013.08.023 | Journal (article/letter/editorial) | | RNb–Ti = +0.42, while in the range 2–5 km RNb–Ti increases to +0.77, in the range 1–2 km RNb–Ti is +0.85 and...“antinigrine” are no ideal mineral aggregates to form placer-type deposits of their own due to their variegated...may assist in drawing a picture of the primary deposit much better than using chemical exploration as...kaersutite); Al Kα, TAP (chromite, almandine); Si Kα, TAP (rhodonite, almandine); P Kα, PET (apatite); S Kα...Kα, LLIF (rhodonite); Fe Kα, LLIF (magnetite, almandine); Ni Kα, LLIF (metal); As Lα, TAP (AsGa); Nb Lα |  | | Book | | Title. Journal Name Year, Article Number, Page Range. ISBN 978-3-03928-076-6 (Pbk) ISBN 978-3-03928-077-3...Meta-Ultramafites of Ilmen Mountains, South Urals of Russia: Evidence from Mineralogy, Geochemistry, Rb-Sr...Anorthosites-Kyshtymites from the South Urals, Russia: A Combined Mineralogical, Geochemical, and U-Pb...Ippei Kitano Gem-Quality Zircon Megacrysts from Placer Deposits in the Central Highlands, Vietnam—Potential...(Coscuez), Ethiopia (Shakisso), Madagascar (Mananjary), Russia (Ural mountains), Zambia (Kafubu) and Zimbabwe |  | | Book | | South Africa 8 1.4 Major kimberlite sites in Russia 9 1.5 Main Russian diamond mine sites and kimberlite...southwest Africa 150 8.2 The drainage area of Orange River through major kimberlite fields of South Africa...recovered from beach sands from the mouth of the Orange River northward 151 10.1 Thermodynamic conditions of...of the northern part of Zerendinsky pluton, with host rocks of the Kokchetav massif, northern Kazakstan...11.4 Tectonic map of the Kumdikol microdiamond deposit 185 11.5 Model of dynamic development of the |
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