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| sterkt foldede og uregelmæssige. men tildels mægtige drag m· kalkmarmor, lokalt dolomitisert, samt muligens...fin eler vi her og der indesluttet lange. smale drag a\' glimmerskiferformationen eller kalkmarmor, med...synopsis of the geology of the arsenic deposits of Norway. Pages 4--7 contain n deseription of the old smalt...ton. On pages 10--:W the arsenie ores of Northern Norway are described. Arsenopyrite is the only arsenic...probably the most considerable arsenic deposit in Norway, although it is still very little known. It is |
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| pegmatites within the Tysfjord granite, northern Norway Tomas Husdal Introduction The Tysfjord granite...including well-known collecting sites like Hundholmen, Drag and Tennvatn. Large, well-formed crystals make thalenite-fv)...from the pegmatites makes this one of the areas in Norway richest in different species. This work is presenting...from Fauske to Efjorden in the northern part of Nordland county. It is a foliated pale grey to pale red...Hundholmen (1906) and in different pegmatites in the Drag area (1907), and continued in these and additional |
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| Minerals of Norway - the (almost) complete inventory Gunnar Raade Preamble A monographic survey of the...the minerals of Norway (Norges Mineraler) was published by Neumann (1985), covering all minerals recorded...and synonyms. A large number of minerals new to Norway have been recorded since the book appeared. The...attempt to list all accepted mineral species from Norway, including those from Neumann (1985) and later...& Nickel 2001). Names of minerals discovered in Norway after the edition of Neumann's monograph are in |
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| to its contact with the intrusion, followed by pyrrhotite-enriched copper ores, and more distal zinc (±Pb±...chalcopyrite-pyrite, chalcopyrite-pyrrhotite-pyrite, chalcopyritepyrite-pyrrhotite±magnetite, and sphalerite...replaced pyrite and less commonly chalcopyrite and pyrrhotite. Arsenopyrite, tennantite, marcasite, cubanite...ore minerals, replacement of early sulphides by pyrrhotite and magnetite, as well as the formation of small...0.45 wt % Ag. Chalcocite, enargite, cubanite, pyrrhotite, marcasite, valleriite, magnetite, hematite, |
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| Grimsdalen Sulphide Deposits, Southern Trondheim Region, Norway STIG ASBJØRN SCHACK PEDERSEN Pedersen, S. A. S...Grimsdalen sulphide deposits, southern Trondheim region, Norway. Norges geol. Unders. 351, 77-98. The central part...pyrite is rather massive and ore minerals (pyrite, pyrrhotite, magnetite, sphalerite, chalcopyrite and galena)...due to the presence of the fine-grained pyrite. Pyrrhotite in the matrix gives the rock a buff grey hue...be distinguished: 1) 2) 3) 4) pyrrhotite-pyrite ore magnetite-pyrrhotite-pyrite ore magnetite-pyrite ore |
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| Boudinage-type Structures at Sgrfinnset, Cildeskaal, North Norway By R. BRADSHAW AND M. K. WELLS ABSTRACT A layer...synform plunging approximately 160°, 15° S. Minor drag fold axes and mineral lineations in the limestones... Boudinage-type Structures at Sorfitmset, Gildeskaal, North Norway 489 v/'/'-J] Hornblendic gneiss adjoining thin...Leake, in press), green spinel, brucite, and pyrrhotite as well as the dominant calcite. Occasional small... Boudinage-type Structures at Sorfinnset, Gildeskaal, North Norway 491 -/ METRF.- TEXT-FIG. 2.—Details of the structure |
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| ore___-__-_-__________. Mineralogy _____________________ Pyrrhotite __-_--____-______. Pyrite. . ____-___-.___-_-___-...but ranges from less than 25 to 100 percent. Pyrrhotite, pyrite, chalcopyrite, quartz, biotite, and amphiboles...silver are recovered. Much of the ore is mainly pyrrhotite, but pyrite is everywhere present and in a few...bounded fragments and layers of gneiss in massive pyrrhotite-chalcopyrite ore were recrystallized to coarse-grained...of pressure shadows into which chalcopyrite, pyrrhotite, and quartz have moved; by cementation of fractured |
 | Admou, Safouane, Branquet, Yannick, Badra, Lakhlifi, Barbanson, Luc, Outhounjite, Mohamed, Khalifa, Abdelali, Zouhair, Mohamed, Maacha, Lhou (2018) The Hajjar Regional Transpressive Shear Zone (Guemassa Massif, Morocco): Consequences on the Deformation of the Base-Metal Massive Sulfide Ore. Minerals, 8 (10) 435 doi:10.3390/min8100435 | Journal (article/letter/editorial) |
| mineralogical features (e.g., predominance of pyrrhotite) with the Central Jebilet MSD to the north, the...bodies of various sizes containing 50–75% vol. pyrrhotite, with sphalerite, galena, chalcopyrite, pyrite...“Guemassa-Jebilet” sub-type owing to its high content in pyrrhotite [25]. In the Hajjar MSD, the primary economic... Note that the S1 trajectories depict a dextral drag fold against the ENE-trending works (cf. infra)... Note that the S1 trajectories depict a dextral drag fold against the ENE-trending Tiferouine mineralized |
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| folds. The caseof drag folds is howeverconsideredto be rather different. The term drag fold has frequentlybeenusedto...with largerones. A true drag fold,howeveris understood to be onedue to relative drag or slippagebetweenbedsor...basinof the WitwatersrandSystem(3, p. 113, Plate II). Drag foldsare causedby the relativedrag or slippagebetweenlayersas...conditions. There could be confusionbetween such larger drag folds and minor folds. In any fold, beddingslip...bedsin a plane perpendicularto the axis of the fold. Drag folds due to this movementwill form with their axes |
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| ...... Pegmatilc Diabase S'lkuc'+var: Foliation Drag ......................................... .......sphalerite (variety marmatite), chalcopyrite, galena, pyrrhotite, pyrite, and sparse molybdenite and marcasite...anomalous lineation. Drag [olds Minor folds of the type COllatlaolalycalled drag folds are conspicuous...inch to 100 feet or more. Small-seale asymmetric drag folds are hest shown in thin-layered portions of...pattern of the skarn masses. (See pls. 1 alld 2.) Drag folds of intermediate size are mappable at places |
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| distribution of trown grains in grey YTTROFLUORITE (Drag Norway) lx2 E3.00 2x2 f6.00 lxl f:4 305 P.hRAPIERROTITE...orange red masses with darker Hornblende(Kragero Norway) lx2 SOp 2x2 f.l.20 010 ALMANDINE Fe Al Silicate...browncleavage in paler Clinochlore. (Overntjern, Modum, Norway) lxl f.2.70 016 AMBLYGONITE Li Na Al,Phosphate...Felspar Group pure pale browncleavages. (Ula Larvik Norway) lxl 50p lx2 El 2x2 t2 268 ANTH10NY NATIVE.pure...distribution of browngrains in grey YTTROFLUORITE (Drag Norway) lx2 E3.00 2x2 EG.00 049 BAYLDONITE Pb Cu Arsenate |
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| sedimentsare involved in a great westerly pitching drag fold on the northern limb of the syncline. Subsequentto...considerably. Especially where the beds are involved in drag folds, someof the rocks,suchas iron formation, have...mine, the major structureis complicated by a large drag fold. In following beds from the east westwardthey...arkoseand greywackein the mine workings, showsthat the drag fold plungesto the west at an angleof approximately5ø...degrees. The axial plane of the anticlinalpart of the drag fo.ldis slightlycurved. To the east of the mine |
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| distribution of tiny brown grains in YTTROFLUORITE (Drag Norway) lx2ins £3 2x2 £6 218 BISMUTHINITE Bismuth Sulphide...Albite with Ilmenite and or Magnetite. (Tuftane Evje Norway) lxl to lx 54 only 1 crystal £4 229 MELANOCERITE...Si/2 0/7 rare Scandium mineral (Tuftane Iveland Norway) grey to colourless crystal section in Felspar...obvious grey coatings on Schist. (Bleikvassli, Nordland Norway) 1x1 £3.00 . 269 MENDIPITE Pb/3 Cl/2 0/2 :...attractive Eclogite rock from (Nordfjord,.West Norway) • 1x2 £1.30 2x2 £2.70 • 2x4 £6 112 CORUNDUM Al/2 |
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| 65 to 70 degrees to the southwest. Several small drag folds on the limb of the major anticlinal folds...metallicminerals,the principalonesof which are pyrrhotite,pyrite. chalcopyrite, sphalerite,and gold. Two...eralIyaccepted to be asfollows:Magnetite,quartz,pyrite,pyrrhotite,sphalerire, chalcopyrite,galena,quartz, gold...gold, quartz. Magnetite Quartz Pyrite ,Pyrrhotite Sphalerite Chalcopyrite Galena Gold Quartz Molybdenite...mineralizedzones,cubesof pyrite are not uncommon. Pyrrhotite.--Pyrrhotiteis abundantwithinthe Mine ore zone |
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| higher-temperature, silver-bearing variety. In Norway, three of the deposits (Sulitjelma, Bleikvassli...countries: Ireland England Scotland 3 7 1 Wales Norway Sweden 1 7 17 Finland Poland USSR 12 2 30. ...Directors of the Geological Surveys of Sweden and Norway. Stanislaw Dzujynsiki and Marie Sass-Gustkiewicz...bodies are) range between 10° and 30°N except in the drag zone next to the Silvermines ENE-trending fault...tennantite, boulangerite, bournonite, jordanite, and pyrrhotite, but the bulk (75%) of the ore is pyrite and |
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| sheared rocks and ores; 2M1 phengite, Mg-chloriteq- pyrrhotite+cubaniteq- chalcopyrite,and talc q-quartz q-...magnetitein shearedrocks and ores. Intense shearing,drag folding, and recrystallizationof the wall rocks...Contact metamorphismresultedin a concentrationof pyrrhotite up to 40 modal percent .in massive ore adjacent...sm, the trace elements(Ni, Co) in pyrite and pyrrhotite and the chemicalcompositionof sphalerRedo not...rocks within and outsideof a major shearzone,in drag fold hingezonesand limbs,andacross the contacts |
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| Kinetics and Mechanism of Pyrite Exsolution from Pyrrhotite by RICHARD A. YUND and HENRY T. HALL Department...November 28, 2013 ABSTRACT Pyrite exsolution from pyrrhotite at 325 °C occurs by heterogeneous nucleation...purity of the elements used in the synthesis of pyrrhotite are listed in Table 1. Except for the Freeport...experiments at 325 and 425 °C. The synthesis of pyrrhotite was carried out in evacuated silica-glass tubes...radio-frequency generator. After synthesis the pyrrhotite was crushed to disaggregate the sample and stored |
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| distribution of tiny brown grains in YTTROFLUOftlTE (Drag Norway) 1x1 £2 1x2 £4 298 BISMUTITE Bi CO/3 0 Quite...Si/2 0/7 rare Scandium mineral (Tuftane Iveland Norway) grey to colourless crystal section in Felspar...Albite with Ilmenite and or Magnetite. (Tuftane Evje Norway) lxl to lx 54 only 1 crystal £4 226 LOPARITE Ce...obvious grey coatings on Schist. (Bleikvassli, Nordland Norway) lxl £3.00 196 MIMETITE Pb As0/4 Cl good all...crystals about 2 to 5 mm on matrix. Some with (Evje Norway) 1x2 £1 lxl ins 50p NEPHELINE micros. (Midelt Morocco) |
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| plunging anticline, the lodes being confined to drag-fold axes. The mineralized stratigraphic unit terminates...halos of lead and zinc are confinedto shearzonesand drag-fold axes. The peak anomaliescouldbe directly correlated...are locatedalong the limbs and axial portionsof drag folds plunging dolomitic ) limestone ) steeplyWNW...migration of Wall-rock Alteration pyriteand pyrrhotite,quartz-carbonate veinletsand mineralizing solutionsbecausethe...of silicate magma. The ubiquitous presence of pyrrhotite suggeststhat the sulfidesof iron ately to the |
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| with sodic rocks and to the localization of pyrrhotite and cubanite in the ore. The country rocks comprise...temperatureminerals, including anthophylliteand exsolved pyrrhotite and cubanite, have been localized where the chalcopyrite...Average Compositionof SulphideMassesContaining Pyrrhotite but not Cubanite ................................................................ 355 357 Pyrrhotite Veinlets ......................................or reverse,curvessuchas bound quartzlensesin the drag foldsof foldedrocks. All pairsof sigmoid curvesare |
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| MacLeod-Cockshuttore zone. A single verticallystandinglarge drag-foldapparentlyrelievedthe folding stresses which...2 VEiN Pyrite Fracturing Quartz Ilmenite (?) Pyrrhotite SYSTEM. .- Sphalerite Chalcopyrite Cubanite...30 VEIN SYSTEM. ........ xxx vvv Graphite Pyrrhotite Sphalerite Galena Chalcop3)rite Ilmenite (?)...Quartz Pyrite .... -. -.. ...... --. xxx Pyrrhotite• Gold Calcite (late) Discussionof the Tables...Ilmenitelikelyoccupies thepositionindicated in the diagram. Pyrrhotite,sphalerite andchalcopyrite occurasminuterounded |
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| and ore mineralization J39 Ore mineralogy J47 Pyrrhotite J47 Arsenopyrite JSO Pyrite J52 Gold J53 Other...typical ore specimens, Homestake mine, including pyrrhotite blebs in grunerite- and siderite-rich layers...layers interbedded with chert, layered pyrrhotite interlayered with biotite-rich chert and siderite, and coarse-grained...arsenopyrite by pyrrhotite JSl Photomicrographs showing occurrence of gold with arsenopyrite and pyrrhotite J52 Diagram...pipeshaped segregations of quartz, siderite, chlorite, pyrrhotite, arsenopyrite, and minor pyrite. Ore bodies have |
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| atoll textures. Whereas sphalerite,galena and pyrrhotite only rarely occur in spheresor fine euhedral...reconstitution during recrystallization. Pyrrhotite.--Pyrrhotite is almostas ubiquitousas pyrite but rarely...MINERALIZ.4 TION 745 Textural associationsbetween pyrrhotite and sphalerite-galenavary with the relative proportionsof...--The associations of sphaleritewith pyrite and pyrrhotite in macroscopically undeformedbands,insofaras...commonly,a like situation developsin sphalerite-pyrrhotite association. Galena.--In additionto the galenaassociations |
 | | Journal (article/letter/editorial) |
| Mount Morgan, Queensland,Australia, pyrite---pyrrhotite--chalcopyrite --magnetite oi-ebodyhas been thermally...annealingrecrystallization of ore along the contact zones. Magma "drag" and intraregional compression induceda build-up...The volcanicrockscompriserhyolites,latites and pyrrhotite and magnetiteare analyzedin terms of tuffs of...surfacetensioneffects. Similar "dust" apparentlyinducedby magma"drag" against triangular grains of chalcopyrite,usuallyof...chalcopyrite,up to 2 c 13). Pyrrhotite will deform plasticallywith re- across within pyrrhotite areas, are seen, |
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| UONITt PuregTCC11clcavagc Landsvctkquarry,Evjc,Norway lxl SOp fdsplrfVllp Puregrcycleavablc massive Keystone...Yorkshire Richdistributionoftiny browngrainsin Drag Norway YTTROFLUORITE alsoblad::Tourmaline Richred brownmassive...2x2 RichycllowmasseswithPhlogopitc Odcgradcnsvcrk Norway - u.so Goodgreenishycllowmicrocrystalsin cavi1ies... HuaronMine,Ccrrode Pasco Peru Sclasvøtn,Fianc,Norway lxl {1.25 lx2 !3 Lengenbach Quany,Binn Vall~...(ny IDPIiemam Ocllbcchlcrysrals Llndsvert,Evjc,Norway ......... 011 ink Paielkabp:y-ive. Stn1111purple |
Jennyhaugen, Drag, Hamarøy, Nordland, Norway