 | | Journal (article/letter/editorial) | | distribution 1n four podzolic soils 1n southernNorway AKHTAR ALI, KJELL B. ESSER & JACQUELINE M. ESSER...distribution in four podzolic soils in southemNorway. Norsk Geologisk Tidsskrift, Vol. 75, pp. 137-145...clay fractions of four podzolic soils in southemNorway was investigated by XRD, SEM/EDAX, and light microscope...least stable minerals present, whereas gamet andepidote show no sign of weathering. Akhtar Ali, Department...Sciences, Agricultural University ofNorway, P.O. Box 5028, N-1432 Ås,Norway. Present address: Land Resources |  | | Report (article/chapter) | | im,Norway. Helge t.esett; Institutt for Kontinentetsokketunderseketser, 7034 Trondheim ,Norway. Introduction...Allochthon of the Scandinavian Caledonides in CentralNorway (Gee et al. 1985). As the name suggests, it is...within the ultramafic rocks have been described byBakke & Korneliussen (1986). They found that while the...with locally abundant opaque minerals and minorepidote and quartz. The light-coloured trondh jemitic dykes...plagioclase, hornblende and minor biotite andepidote. The amphibolitic and trendhjemitic dykes are found |  | | Journal (article/letter/editorial) | | Physics of Geological Processes, University of Oslo,NorwayDeutsches GeoForschungsZentrum (GFZ), Potsdam,...mineralogy of the altered basaltic clasts(chlorite,epidote, albite, actinolite) corresponds to low-grade metamorphic...al., 2001;Zubtsov et al., 2004), simulations (Bakke and Øren, 1997; Landerand Walderhaug, 1999; Bernabé...peridotitic clasts of the Solund basin (WesternNorway) experienced strong chemical alteration (metasomatism)...continental Devonian Basins situated along thecoast of WNorway (Fig. 1). The basins formed in response to lateor |  | | Journal (article/letter/editorial) | | the Uppermost Allochthon (UmA) mostly in northernNorway. The Neoproterozoic and Cambrian history ofthis...á P.M. IhlenGeological Survey ofNorway,N-7491 Trondheim,Norwaye-mail: tor.grenne@ngu.noF.M. Vokes...Engineering,Hùgskoleringen 6, N-7491 Trondheim,Norwayhost to two characteristic types of stratabound-stratiform...higherlevels in the nappe pile, in southwesternNorway, thewestern Trondheim Region, the western Grong...in the western Grong District and in southwestNorway. Orthomagmatic ores occur in the form ofPGE mineralisation |  | | Journal (article/letter/editorial) | | es,kaolinitc,smectite,illitc, quartz, calcite,epidote,and pyrite. The fine-grainis typically altered...chloriteshigher in the section.Zeolite mineralsEpidoteZeolitesare foundin the uppermostpart of thedrill...Kristmannsdottir, ence of clay, chlorite, and minorepidote at depthsAlteration Zoning Patternasshallowas350...alterationappearsto be weakly in one zone can occur in another.Epidote occursatTABLE2.Summaryof AlterationZonesfor...-- zeolite, chl -- chlorite, ill = illite, ep =epidote,ab -- albite, ad = adularia,anhy-- anhydrite |  | | Journal (article/letter/editorial) | | skarn with Fe diopside ± anorthite; amphibole-epidote skarns with actinolite + clinozoisite ± bytownite...started with hydration reactions to form amphibole-epidote skarns, probably under lower XCO2 conditions. Ore...(Skaarup, 1974)and Bjellatind areas (Larsen, 1991) inNorway, and the Brazilian Shield (Einaudi et al., 1981)...carbonate ± Fe oxides (Fig. 6).Amphibole-epidote skarnsAmphibole-epidote skarns comprise a dominant amphibole-rich...locally anepidote-rich skarn(10%), hereafter referred to as amphibole skarn andepidoteskarn, respectively |  | | Journal (article/letter/editorial) | | Geosciences, UiT The Arctic University ofNorway in Tromsø, 9037 Tromsø,Norway2 Research Center for Arctic Petroleum... UiT The Arctic University ofNorway in Tromsø, 9037 Tromsø,Norway3 Geoscience Centre, Georg-August-University...the Alta–Kvænangen tectonic window in northernNorway yielded latest Mesoproterozoic (approximately 1050...(approximately 425 Ma) and was accompanied byepidote–chloriterich, stilpnomelane-bearing cataclasite...Brittle faulting and previous age dating in northNorwayBrittle faults trendsPrecambrian basement rocks |  | | Journal (article/letter/editorial) | | to the Au–Cu-bearingveins at Chemchem mine. cEpidote–K-feldspar–sericitealteration of Ikulu metapelite...Au–Cu–Pb-bearing veins at Chemchem mine. dChlorite–epidote–pyrite alteration of amphibolite adjacent to a...replaced bychlorite (Chl), sericite (ser) andepidote (Ep)infiltration into the metapelitic country...includes the formationof chlorite, sericite,epidote, quartz and calcite (Fig. 2b–d).Plagioclase and...Kiel. Forthe biotite, plagioclase, amphiboles,epidote, zoisite, muscovite and chlorite analysis, analyses |  | | Journal (article/letter/editorial) | | strongly altered to combinations of chlorite,epidote, carbonate, and sericite, whereas plagioclase is...ferromagnesianminerals are generally altered to chlorite,epidote, sericite, carbonate, and sulfides. Tonalite I...molybdenite, with specularhematite in places.Epidote-chlorite alteration (propylitic) and veining are...side of the north zone. Plagioclase is altered toepidotewhereas ferromagnesian minerals are altered to...chlorite andthe fine-grained matrix to a mixture ofepidote, chlorite, sericite, and carbonate.Carbonate veins |  | | Report (article/chapter) | | volcanic stratigraphy of theGjersvik Nappe, centralNorway*C. HallsDivision of Mining Geology, Royal School...nstitutt, Norges "rekniskeH~gskole, Trondheim,NorwayI. FerridayDivision of Mining Geology, Royal School...London, EnglandA. HaugenGrong Gruber A/S, Joma,NorwayA. RankinDivision of Mining Geology, Royal School...Pre-tectonic segregations, veins and vesicle fillings ofepidote, albite, chlorite, carbonate and quartz related...verified by the abundance o f nearlymonomineralicepidote clasts in the derived conglomerates.The relationship |  | | Report (issue) | | IIIii,Soil Sa1nplingin the Roros (Rui &Bakke, 1975) district, NorwegianCaledonides, massive...deposits contain thin ( ? ) meta tuffsRui andBakke (1975) stressed that the origin of the oreswas...Edinburgh, Vol. 66,pp. 267-283.RUI, I. J. andBAKKE, I. 1975. Stratabound sulphidemineralisation in...carbonates {calcite and ( ?) ferroan dolomite) whilstepidote is only occasionally present. A higher metamorphic...carbonate (calcite and (?)ferroan dolomite) withepidote and chlorite.distinctive fine banding caused |  | | Journal (article/letter/editorial) | | allanite, apatite,zircon, andepidote (Neiva et al., 1996).Epidote is inferred to be ofmagmatic origin...phases include zircon, monazite, allanite, andepidoteFormed at depth of ~ 3 to 5 kmGeochemical signature:...Goldfarb, R.J., Smith, M., Roberts, P., Hulstein, R.,Bakke, A.A.,Bundtzen, T.K., 2002. Geology, exploration..., Newberry, R.J., Layer, P.W., DiMarchi, J.J.,Bakke, A.A., Masterman, J.S.,Minehane, D.J., 1997. Plutonic-related |  | Rosenberg, J. L., Spry, P. G., Jacobson, C. E., Vokes, F. M. (2000) The effects of sulfidation and oxidation during metamorphism on compositionally varied rocks adjacent to the Bleikvassli Zn-Pb-(Cu) deposit, Nordland, Norway.Mineralium Deposita, 35 (8) 714-726doi:10.1007/s001260050274 | Journal (article/letter/editorial) | | to the BleikvassliZn±Pb±(Cu) deposit, Nordland,NorwayReceived: 1 March 1998 / Accepted: 3 May 2000...Zn±Pb±(Cu) volcanogenic massivesul®de deposit,Norway, are dependent upon the competing eects of f O2±f...naturvitenskapelige Universitet,7034 Trondheim,Norwayeation of a sul®dation±oxidation halo bordering...the Bleikvassli Zn±Pb±(Cu) deposit of Nordland,Norway.The 6.5 Mt Bleikvassli deposit is well suited...intense but irregularly distributed biotite±quartzepidote alteration in the amphibolite structurally below |  | | Journal (article/letter/editorial) | | diopsidicpyroxene,andbornite-chalcopyrite,cut byepidote,actinolite,and pyriteveinlets;andgenerallyresembles...schistoseorthogneiss,albite-chlorite-muscovite-epidoteassemblagesindi- and aplitic and pegmatiticgneisses...the plutonswith countryrocksarebothdiscordanttoepidote-amphibolitefaciesassemblagesareseenin andconcordant;...(thisstudy);4 = averageof eightblendehornfelsto albite-epidotehornfelsfacies.As- stronglyquartz-sericite-pyrite-altered... calc-silicates(granditc,andraditicgarnet,orepidote)the pluton, a relict gradientwhich survivedover- |  | Wilson, A. J., Cooke, D. R., Stein, H. J., Fanning, C. M., Holliday, J. R., Tedder, I. J. (2007) U-Pb and Re-Os Geochronologic Evidence for Two Alkalic Porphyry Ore-Forming Events in the Cadia District, New South Wales, Australia.Economic Geology, 102 (1) 3-26doi:10.2113/gsecongeo.102.1.3 | Journal (article/letter/editorial) | | Colorado, and Geological Survey ofNorway, 7491 Trondheim,NorwayC. MARK FANNING,Research School of...gold-copper porphyry deposits (Ridgeway, CadiaQuarry, Cadia Hill, and Cadia East) and two related ironcopper-gold...stock that lies immediately southwest of the CadiaQuarry deposit areearly Late Ordovician (456–454 Ma)...quartz monzonite porphyry stock that hosts the CadiaQuarry and Cadia Hill orebodies and an intermineral quartz...episodes of mineralization associated with the CadiaQuarry deposit, suggesting a complex history between 460 |  | | Report (issue) | | Peridotite at Engenbræ, Holandsfjord, NorthernNorway. With 13 textfigures. Sammendrag: Bergartene omkring...1929: The Cambrian beds of the Mjøsen district inNorway. - Norskgeol. tidsskr., 10, h. 3-4, pp. 307-365...1953: The Middle Ordovician of the Oslo Region,Norway. l. Introductionto stratigraphy. - Norsk geol...in amphibolite. l. Greenepidote (with some garnet). 2. Quartz. 3. Redepidote and grossularite. 4. Concentration...yellow beryl(Gamle gruve), brookite (Gamle gruve),epidote (Amalie), fluorite(Amalie), chalcocite, bornite |  | | Book | | Eastern-Central Alaska: An Overview and Update.Arne ABakke, Robert P Morrell and John C O dden...............brown biotite, red garnet, silica/pyrite/sericite,epidote, and magnetite. Retrogradeevents consisted of...EAST-CENTRAL ALASKA:AN OVERVIEW AND UPDATEAmeBakke, Robert P. Morrell,& John C, OddenFairbanks Gold...ofcompanies explored and developed Fort Knox.Bakke (1995) details the discovery and exploration history...present as pendantsnear the schist-granite contact.Bakke (1995) provides whole-rock, trace elem ent and a |  | Cave, Ben J.; Barnes, Sarah-Jane; Pitcairn, Iain K.; Sack, Patrick J.; Kuikka, Helena; Johnson, Sean C.; Duran, Charley J. (2019) Multi-stage precipitation and redistribution of gold, and its collection by lead-bismuth and lead immiscible liquids in a reduced-intrusion related gold system (RIRGS); Dublin Gulch, western Canada.Ore Geology Reviews, 106.doi:10.1016/j.oregeorev.2019.01.010 | Journal (article/letter/editorial) | | albite, carbonate(calcite and ankerite), andepidote (Maloof et al., 2001; Kirk, 2016) characterize...Dominant vein minerals are quartz, K-feldspar,epidote, and plagioclase.Quartz contents vary significantly...amounts of quartz, plagioclase, and K-feldspar, ±epidote (Figs.3A-H). Accessory minerals include carbonate... R.J., SMITH, M.T., ROBERTS, P., HULSTEIN, R.,BAKKE, A.A. & BUNDTZEN, T.K. 2002. Geology, exploration...HART, C., ROMBACH, C., THOMPSON, J., SMITH, M.,BAKKE, A. & GOLDFARB, R. 2002. Absolute timing of sulfide |  | Markowski, Agnès, Vallance, Jean, Chiaradia, Massimo, Fontboté, Lluìs (2006) Mineral zoning and gold occurrence in the Fortuna skarn mine, Nambija district, Ecuador.Mineralium Deposita, 41 (4) 301-321doi:10.1007/s00126-006-0062-x | Journal (article/letter/editorial) | | development ofNa-rich plagioclase, K-feldspar,epidote, actinolite, anhedral pyroxene, and titanite affects...dominant brown garnet skarn, a distal green pyroxene–epidote skarn, and two quartz-rich varieties, a blue-green...observed. It gradesinto a distal green pyroxene–epidote skarn zone to theNorth (Cuerpo 3). Granditic garnet...filling mineral is quartz, followed by Kfeldspar,epidote, calcite, and chlorite, with minor sericite,apatite...(1- to 20-wt% eq. NaCl) were trappedin garnet,epidote, and quartz, and are interpreted to beresponsible |  | Wang, Liqiang, Tang, Juxing, Deng, Jun, Kang, Haoran, Lin, Xin, Cheng, Wenbin, Li, Zhuang, Zhang, Zhi (2015) The Longmala and Mengya’a skarn Pb–Zn deposits, Gangdese region, Tibet: evidence from U–Pb and Re–Os geochronology for formation during early India–Asia collision.International Geology Review, 57 (14) 1825-1842doi:10.1080/00206814.2015.1029540 | Journal (article/letter/editorial) | | alteration minerals are garnet, diopside, actinolite,epidote, chlorite, phlogopite, quartz, and calcite.Based...number of hydrous minerals, such as actinolite,epidote, and chlorite (Figure 5d, e), with a small amount...present at this stage (Figure 5e). Actinolite andepidote are the major minerals at this stage, which replace...Actinoliteusually occurs as radiated aggregation, andepidote andchlorite are fine-granular. (III) Magnetite-phlogopite...diopside, wollastonite, actinolite, tremolite,epidote, chlorite, muscovite, quartz, and calcite.The |  | | Journal (article/letter/editorial) | | metamorphicminerals such as chlorite, albite, andepidote. The hydrousminerals are interpreted to have formed...1988; Dalstra et al., 1999).Metamorphic chlorite,epidote, albite, quartz, pumpellyite,prehnite, and calcite...Biotite is partly replaced bychlorite-rutile-epidote aggregates, and plagioclase is partly1234 ARCHEAN...terrane (Fig. 1). In this belt, retrograde chlorite-epidote assemblages overprint amphibolitefacies greenstones...by turbid K feldspar, carbonate-prehnite, andepidote-chlorite aggregates (Fig. 9B). Much of the plagioclase |  | Dressel, Bárbara Carolina; Chauvet, Alain; Trzaskos, Barbara; Biondi, João Carlos; Bruguier, Olivier; Monié, Patrick; Villanova, Sandro Notto; Newton, José Bazille (2018) The Passa Três lode gold deposit (Paraná State, Brazil): An example of structurally-controlled mineralisation formed during magmatic-hydrothermal transition and hosted within granite.Ore Geology Reviews, 102.doi:10.1016/j.oregeorev.2018.09.007 | Journal (article/letter/editorial) | | comprise potassicalteration, phillic alteration,epidote alteration, saussuritisation, silicification, carbonation...in the Timbarra (Mustard, 2001) andFort Knox (Bakke, 1995 in Mustard, 2001; McCoy et al., 1997 in Thompson...late fluid phases of crystallising intrusions (Bakke, 1995 in Mustard, 2001; McCoy et al., 1997in Thompson...small intrusions, such as the Fort Knox deposit (Bakke, 1995 in Mustard,2001). Small stocks allow the... Rombach, C.S., Thompson, J.F.H., Smith, M.T.,Bakke, A.A., Goldfarb, R.J., 2002. Absolute timing of |  | Wu, Huaying, Zhang, Lianchang, Wan, Bo, Chen, Zhiguang, Xiang, Peng, Pirajno, Franco, Du, Andao, Qu, Wenjun (2011) Re–Os and 40Ar/39Ar ages of the Jiguanshan porphyry Mo deposit, Xilamulun metallogenic belt, NE China, and constraints on mineralization events.Mineralium Deposita, 46 (2) 171-185doi:10.1007/s00126-010-0320-9 | Journal (article/letter/editorial) | | quartz/molybdenite, pyrite Pr:chlorite, calcite,epidote/pyriteEpidote, quartz, chlorite, calcite,fluorite/magnetite...quartz/chalcopyrite, pyrite, molybdenitePr: chlorite,epidote/pyriteK: K-feldspar, biotite, quartz/magnetite... Hart CJR, Rombach CS, Thompson JFH, SmithMT,Bakke AA, Goldfarb RJ (2002) Absolute timing of sulfide |  | Alaminia, Zohreh, Mehrabi, Behzad, Razavi, Seyed Mohammad Hossein, Tecce, Francesca (2020) Mineral chemistry, petrogenesis and evolution of the Ghorveh-Seranjic skarn, Northern Sanandaj Sirjan Zone, Iran.Mineralogy and Petrology, 114 (1) 15-38doi:10.1007/s00710-019-00688-6 | Journal (article/letter/editorial) | | ±pyrrhotite; stage III, amphibole+vesuvianite+epidote+chlorite±quartz±calcite±pyrrhotite±pyrite±chalcopyrite...pyrite and stage IV, quartz+calcite±amphibole±epidote±chlorite±pyrite±chalcopyrite.Scheelite occurs...consist of calcite± clinopyroxene± tremolite±epidote± albite± opaque± titanite showing predominantly...= vesuvianite,Qz = quartz, Pl = plagioclaseepidote and amphibole and 1 μm for clinopyroxene, garnet...garnet,clinopyroxene, vesuvianite, amphibole,epidote, quartz, andcalcite together with scheelite, chlorite |  | | Journal (article/letter/editorial) | | mineral assemblage (e.g. amphibole, diopside,epidote, andalusite, biotite) which aremoderately aligned...penetrated by shear veins mineralized withFe-enrichedepidote (Fig. 5i). It is a facies type mostly found at...of a certain level oftemperature of formation:epidote-clinozoisite s.s.s.: 400°C-530°C, diopside s.s...reflect a temperaturedrop from 670°C down to 400°C.Epidote is the marker mineral to fix the lower T limit...silicate minerals (e.g. wollastonite, diopside,epidote, andalusite….) and quartz thermometry)in the Hagendorf-Pleystein |
|