 | | Journal (article/letter/editorial) | | less abundant grains of saussuritized plagioclase. Quartz in rounded grains may be absent or present in variable...diopside, saussuritized plagioclase, and original quartz grains ; in it such enclosures are less abundant...limestone are changed to massive grossular-idocrase skaras. The specific gravity of such rocks is the highest...Replacement of Limestone Inclusions in Granite 155 quartz grains. Clinozoisite clearly replaces the grossular...by grossular and diopside grains as well as by quartz. There is ^••..•,:: P Y R O X E N E ZONE.;:• |  | | Journal (article/letter/editorial) | | Merida. Small Hercynian granite, monzonite, and quartz monzonite bodies are found in the Eastern Cordillera...the Santa Marta and Santander massifs. Paleogene quartz diorite exposures (K-Ar age 50 Ma) have been established...orthoamphibolites, and b) calc-alkaline, composed of quartz diorites, granodiorites, trondhjemites, and granites...copper; 18) copper ore in skaras; 19) polymetallic veins; 20) mercury; 21) gold-quartz; 22) gold-silver ore...Paleozoic metamorphic rocks and Jurassic granites and quartz diorites. To the south, in the Garson massif, is |  | | Journal (article/letter/editorial) | | deposits include rare-metal pegmatites and granites, skaras, greisens formed from differ ent rocks (grelsen...rocks, represented by phlogoptte deposits), and quartz veins. Although these deposits belong to dif ferent...same type (for example, pegmatites, grelsens, and quartz veins), localized in different rocks, shows that...association in the folded regions of greisens and quartz veins with the late intrusive phases of the granite...components are the rare-metal pegmatites, greisens, and quartz veins occurring la the folded regions and genetically |  | Hodges, C.A., Cox, D.P., Singer, D.A., Case, J.E., Berger, B.R., Albers, J.P. (1984) U.S. Geological Survey-INGEOMINAS mineral resource assessment of Colombia. Open-File Report Vol. 1984 (84-345) US Geological Survey doi:10.3133/ofr84345 | Report (issue) | | lead-zinc deposits (4.8) 28 Epithermal gold, quartz-adularia type (5.4) 30 Hot springs gold-silver...Sandstone-hosted lead-zinc deposits 27 13. Epithermal gold, quartz-adularia type 29 14. Hot springs gold-silver...Deposits are recognized in outcrop by their dense quartz stockwork, stable potassium feldspar in altered...beds, consists only of oxidized copper minerals in quartz veins with high concentrations of accessory silver;...Figure 13. Epithermal gold, quartz-adularia type. 29 5.4 EPITHERMAL GOLD, QUARTZ-ADULARIA TYPE Domains |  | | Report (issue) | | ............................... 152 Epithermal quartz-alunite Au deposits, by G.S. Plumlee, K.S. Smith...Kleinkopf ............................. 199 Stibnite-quartz deposits, by R.R. Seal, II, J.D. Bliss, and D.L...Klein ......................... 257 Low-sulfide Au quartz vein deposits, by R.J. Goldfarb, B.R. Berger, T...aluminosilicate minerals, whereas feldspars and quartz are the least reactive. Mineral textures and trace...in the 19th Century; today, waste dumps at these mines pose relatively few problems because potentially |  | | Report (issue) | | Physical features of the granitic rocks Minerals Quartz Alkali feldspar Alkali-feldspar megacrysts Plagioclase...(Kwr) 130 Intrusive suite of Buena Vista Crest 131 Quartz diorite dikes in El Cap it an (Kqe) 131 Granodiorites...Star Lakes Ksl) Tonalite of Aspen Valley (Kav) Quartz diorite of Mount Gibson (Kgi) Granodiorite of Bearup...that intrude the Mount Goddard septum Fine-grained quartz syenite (Jqs) Granodiorite of Goddard Canyon (Jgd)...Leucogranite of Casa Diablo Mountain (Jcd) Inconsolable Quartz Monzodiorite (Kin) Leucogranite of Rawson Creek |  | Doebrich, Jeff L., Albino, G.V., Barker, C.E., Duffield, W.A., Dunn, V.C., Hanna, W.F., McFarlan, J.P., McGuire, D.J., Miller, M.S., Peters, S.G., Plouff, Donald, Raines, G.L., Sawatasky, D.L., Spanski, G.T. (1994) Resource assessment of the Bureau of Land Management's Winnemucca District and Surprise Resource Area, Northwest Nevada and Northeast California. Open-File Report Vol. 1994 (94-712) US Geological Survey doi:10.3133/ofr94712 | Report (issue) | | 'USGS, MS 176, Reno Field Office, Mackay School of Mines, University of Nevada, Reno, NV 89557-0047 2U.S...'Western Field Operations Center, U.S. Bureau of Mines, E. 360 Third Ave., Spokane, WA 99202 10USGS, MS...(USGS), in cooperation with the U.S. Bureau of Mines (USBM), is conducting a resource assessment of the...working with personnel of the Nevada Bureau of Mines and Geology who are currently reassessing geothermal...of Land Management (BLM) and the U.S. Bureau of Mines (USBM) to coordinate resource assessments and evaluations |  | | Report (issue) | | MONSTER 0,6534 pct. guld, Skjelbreddalens skjærp ved Skara holdt 0,74 pct. guld i det utvundne sølv, Ramsrud...Deposits of Temiskaming. Report of the Bureau of Mines of Ontario. Toronto 1905, Il og 1907, Il. Zeitschr...kunne se, at de avbyggede gruberum er større i de øvre dele end i de nedre. Over 912 meter gjenstaar paa...kisrikt ved Gomsrudgruberne. 1 Videre kan nævnes : Skaras baand. H oltefjeldsbaandene. Vinorens baand. B...kvartsdiorit har blandt andre steder git meget sølv i de øvre og østre baand i Kongens grube, i de ostre baand |  | | Book | | heavily on company reports and on file information in Mines Departments. The fourth aim will be to give the...which includes granite, granodiorite, quartz monzonite, quartz diorite and trondjemite. The term "granite"...which includes granite, granodiorite, quartz monzonite, quartz diorite and trondjemite. The term "granite"...Huang et al.,1984), annite + sellaite + fluorite + quartz assemblages (e.g. Kazakhstan, U.S.S.R. - Shcherba...skarns (e.g. Pine Creek, Strawberry and Black Rock mines) occur in the eastern part of the belt, where the |  | | Report (volume) | | of the supracrustal sequence at Ssesvatn, South Norway: Re-Os dating of Cu-Mo mineral occurrences 319...about the ages of mineral occurrences in southern Norway, which enable them to pinpoint the timing of deformation...from the ore deposit to the margin as follows: quartz-K-feldspar, kaolinite, sericite-chlorite, montmorillonite-illite...rocks, intruded by numerous granitoids, strong quartz-sericite, chlorite (or phlogopiteto the south and...margins. The VMS deposits are associated with strong quartz-sericite and chlorite alteration. Bathurst The |  | | Book | | period of 40 years on many field trips, visits to mines and expeditions in many parts of the world. Many...University (1954-55 and 1961-62), at the Ministry of Mines (Ethiopian Government) in the period 1956-61 and...by Drescher-Kaden in 1969 who demonstrated that quartz veins and space fillings in folded chlorite schist...has described magnetite, rutile and ilmenite in quartz veins as being the result of lateral secretion...Cassiterite, wolfram, tourmaline, Topaz and quartz (the quartz continuing). 2. Pyrite, arsenopyrite, gold |  | Nokleberg, W.J., Bundtzen, T.K., Grybeck, D.J., Koch, R.D., Eremin, R.A., Rozenblum, I.S., Sidorov, A.A., Byalobzhesky, S.G., Sosunov, G.M., Shpikerman, V.I., Gorodinksy, M.E. (1993) Metallogenesis of mainland Alaska and the Russian Northeast. Open-File Report Vol. 1993 (93-339) US Geological Survey doi:10.3133/ofr93339 | Report (issue) | | Polymetallic vein Sb-Au vein (simple Sb) Sn quartz vein Sn silicate-sulfide vein (Cornish type) Sn...Deposits Related to Regionally Metamorphosed Rocks Au quartz vein (includes concordant vein and shear zone Au)...(Maiskoe type) Clastic sediment-hosted Sb-Au Cu-Ag quartz vein (vein Cu) ______ ^ 3 ~? ^^ Deposits Related.............................................9 Sw quartz vein (Rudny Gory or Replacement Sn type)..................................................14 Au quartz vein (includes concordant vein, and shear zone |  | Alexander, J. E., O., W., G., J. (1838) Report of an Expedition of Discovery, Through the Countries of the Great Namaquas, Boschmans, and the Hill Damaras, in South Africa. Journal of the Royal Geographical Society of London, 8. 1 doi:10.2307/1797781 | Journal (article/letter/editorial) | | argillaceoussehist,numerous ores of iron, mueh quartz,and a greatvarietyof beautiful agates. The valleysbetweentlle...llroceeele(l al)vut40 miles, into the recessesof the SKaras(or sharp) Mollntainssto en(leavourto recoverby |
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