 | | Journal (article/letter/editorial) | | origin of marginal rocks from the Muskox layered intrusion (Nunavut, Canada) and implications for the evolution...Columbia, Vancouver, B.C., V6T 1Z4, Canada Anglo American Exploration (Canada) Ltd., 800-700 West Pender Street...Street, Vancouver, B.C., V6C 1G8, Canada a r t i c l e i n f o Article history: Received 19 May 2008...isotopes UâPb geochronology Muskox intrusion Marginal zone Coppermine River ďŹood basalts Mackenzie large...province a b s t r a c t The Muskox maďŹcâultramaďŹc layered intrusion, Nunavut, is part of the widespread |  | | Journal (article/letter/editorial) | | MAY_JUNE 1965 MACKINAWITE AND VALLERIITE IN THE MUSKOX INTRUSION .q.No R. N. Dnr.-,lnro, J. A. Cn,rulERLArN...central la)rered series ol the Muskox intrusion, Northwest Territories, Canada New electron probe measurementsand...sulfidesand related minerals in the Muskox ultramafic intrusion (Chamberlain, in preparation). Mackinawite...on the occurrenceof the two mineralsin the Muskox intrusion which appearsto shed light on their mode of...mackinawite. Hrsronv The Muskox intrusion was discoveredin the CoppermineRiver area of northern Canadain |  | | Journal (article/letter/editorial) | | andGold in the MuskoxLayered Intrusion, NorthwestTerritories, Canada SARAH-JANE BARNES Sciences de la...a mantleplume centeredsome400 km north of the intrusion. Nickel-coppersulfidesoccurat the marginsof the...rocks to the south, east, and west of the Muskox intrusion are paragneissesand orthogneissesof the 1900...proto-ocean(Rossand Kearns, 1989) that accovering the whole Muskox intrusion, but no detailed companiedthe emplacementof...studyreportsindividualanalysesfor Ni, Cu, S, Pb, mine River flood basaltsdated at 1267 ___ 2 Ma (U/Pb on Au |  | | Journal (article/letter/editorial) | | CONSTRAINTS ON THE Fe ISOTOPE COMPOSITION OF MAGMATIC PYRRHOTITE Laura D. Bilenker,1,â Dominique Weis,1 James...Columbia, 2020-2207 Main Mall, Vancouver, BC V6T-1Z4, Canada 2STEM Fellowship Internship Program, University...University of British Columbia, Vancouver, BC V6T-1Z4, Canada Abstract We present the first systematic characterization...characterization of the Fe isotope composition of magmatic pyrrhotite for the application of Fe isotopes to the origin...data for sulfides. Recent studies indicate that pyrrhotite will strongly influence the Fe isotope systematics |  | | Journal (article/letter/editorial) | | NorthernIreland Crystallization sequences in the Muskox intrusion and other layered intrusions-II. Origin of...occasions when the basic parental magma of the intrusion is suddenly extensively contaminated with granitic...differentiation patterns of Cr and Wi in the Muskox intrusion. The granitic melt is produced because most...most of the crystals formed in the intrusion accumulate on its floor, leaving the roof rocks to be continuously...density and high viscosity. granophyre. In the Muskox intrusion there are two chromite-rich layers, each occurring |  | | Journal (article/letter/editorial) | | ultramafic rocks, consist mainly of iron sulfides(pyrrhotite+_pyrite) in addition to pentlandite,and lack...many ultramaficrocks,as for example,in the Middle River Range, British Columbia (Little, 1949), at Timmins...amounts, and finally millerite, in mainly of pyrrhotite,with lesserpentlandite,pyrite, trace amounts...-+heazlewoodite Magnet,te +heazl ....d,te +pentlandil'e Pyrrhotite +sphalerâ˘te+ chalcopyrâ˘te_⢠pyrâ˘te FIG. 6. I...hpo= hexagonal pyrrhotite, hz '- heazlewoodite,ml = millerite, mpo= monoclinic pyrrhotite, pm = polydymite |  | | Journal (article/letter/editorial) | | describedby- Kouvo et al (1963) and from the Muskox intrusion in Canada by Chamberlain and Delabio (1965). During...properties given for the same mineral from the Muskox intrusion by Chamberlain and Delabio (1965). The mineral...Outokumpu mine (Kouvo et al, 1963) and from the Muskox intrusion (Chamberlain and Delabio, 1965)indicate that...mackinawite takes up from 10 to 30 percentof the area of the pentlanditegrains.The mackinawite is usually...of the material from Loolekop and from the Muskox intrusion (Chamberlain and Delabio, 1965) is due to |  | | Journal (article/letter/editorial) | | Cuprostibite and associated minerals from the llimaussaq intrusion, South Greenland, 1978 by S. Karup-Møller. L....00 No. 127 The ore minerals of the IUmaussaq intrusion: their mode of occurrence and their conditions...Iratigraphy and vegetalion history in the Scoresb) Sund area. East Greenland. 1978 by S. Funder. D.kr. 95.00...restricted to the Cu-Fe-Ni-Co-S system - pentIandite, pyrrhotite, chalcopyrite, pyrite, millerite, heazlewoodite...affects the major phases in the folIowing order: pyrrhotite > chalcopyrite > pentIandite. Temperature stability |  | | Journal (article/letter/editorial) | | or unmixing. The solutionof Ni in mon.oclinic pyrrhotite. However the sometemperaturebetween400 ø and...ariesdelineated by the chargesKCo93,94, 96, and pyrrhotite,hz = heazlewoodite, ml = millerite, mpo 104 andthe...= monoclinic pyrrhotite,ms= marcasite, pm -- polydymite, pn -pentlandite, po = pyrrhotite, py = Annealingof...(1) massive(blocky) pentlandite,often with of pyrrhotite;(2) rimsof these temperatures,alloys of these...pentlanditeassemblages have been anahexagonal pyrrhotite-monoclinic pyrlyzedby the electronprobein samplesfrom |  | | Journal (article/letter/editorial) | | from the Midcontinent Rift-Related Echo Lake Intrusion in Northern Michigan, USA Alexander James Koerber... Abstract: The Echo Lake intrusion in the Upper Peninsula (UP) of Michigan, USA,...Troctolite is the predominant rock unit in the intrusion, with interlayered bands of peridotite, mafic...disseminated grains of sulfide minerals such as pyrrhotite and chalcopyrite occur in the mineralized interval...and studied [3,8,9], which include the Partridge River and South Kawishiwi intrusions, emplaced between |  | | Journal (article/letter/editorial) | | Devolatilization equilibria in graphite-pyrite-pyrrhotite bearing pelites with application to magma-pelite...fluid in equilibrium with graphite, pyrite and pyrrhotite were calculated for a range o f pressure, temperature...selective transfer of sulfur from a graphite-pyrite-pyrrhotite bearing pelite into a pluton via a fluid phase...produced from graphite-pyrite-pyrrhotite pelites (due either to magmatic intrusion or regional metamorphism)... The occurrence o f sulfides (pyrite and/ or pyrrhotite) indicates the presence of significant amounts |  | | Journal (article/letter/editorial) | | azlewoodite, millerite, pentlandite, mackinawite, pyrrhotite, chalcopyrite and cubanite. Awaruite and the...4. A paucity of pentlandite, and commonly of pyrrhotite. 5. Lack of magmatic textures. These characteristics...galena, niccolite, maucherite, arsenopyrite, pyrrhotite, pyrite, magnetite, bismuth, bismuthinite, tetrahedrite...minor sphalerire, millerite and siegenite. d) pyrrhotite + pyrite + chalcopyrite + magnetite, with minor... phlogopite, magnetite, pleonaste, ilmenite, pyrrhotite, pyrite, chalcopyrite and sphalerite (assemblage |  | | Report (issue) | | corresponding to (Fe1.06 Ni0.05 )ÎŁ=1.11 S1.00 . (2) Talnakh area, Russia; by electron microprobe, corresponding to...peridotites, and in the reducing environment of river bottom muds; may be produced by magnetotactic and...Association: Chalcopyrite, cubanite, pentlandite, pyrrhotite, greigite, maucherite, troilite. Distribution:...Washington [TL]; in muds from the bottom of the Mystic River, Boston, Suffolk Co., Massachusetts; from the Howard...borate deposit, Boron, Kern Co. In Canada, in the Muskox intrusion, Northwest Territories, and at the |  | | Journal (article/letter/editorial) | | igneous complexes, mostly in those of the layered intrusion-type. In addition, stratiform bodies of base metal...intrusions". Igneous complexes of the layered intrusion-type are - - because of their often formidable...1888. The major constituents of the ore body are pyrrhotite, chalcopyrite and pentlandite which account for...accumulations in other layered intrusions (e. g., Muskox, Canada; Stfllwater, Montana; Bushveld, South Africa)...the sulfide mineralization (mainly pentlandite, pyrrhotite, ehaleopyrite and pyrite) of the platiniferous |  | | Journal (article/letter/editorial) | | Cu-Ni-PGE Sulfide Mineralization in the Partridge River Intrusion, Duluth Complex, Minnesota ROBERT D. THĂRIAULT...UniversitĂŠ du QuĂŠbec Ă Chicoutimi, Chicoutimi, QuĂŠbec, Canada, G7H 2B1 AND MARK J. SEVERSON Natural Resources...near the base of the Partridge River intrusion, a mafic layered intrusion emplaced along the northwestern...typically occur within the lower 250 m of the intrusion and are hosted mainly by heterogeneous norite...numerous features, such as high proportions of pyrrhotite and arsenide minerals and high Cu/Pd, Ni/Pd, |  | | Journal (article/letter/editorial) | | iron sulfide," previously described from the Muskox Intrusion, N.W.T. and from the Lizard ultramafics in...polished sectionsof this material showed rhajor "pyrrhotite" with exsolrredpentlandite, veined by a later...mineralogyof this depositand of other similar ones in the area has beengiven by Antun, El Goresy,and Ramdohr (1966)...Antun et al. desuibethe major sulfide phaseas pyrrhotite whereastroilite is clearly the major phasein...sulfide" described by Jambor (1969) in the Muskox Intrusion, N.W.T. and by Clark (1970) from the Lizard |  | | Journal (article/letter/editorial) | | Columbia, 2270 Main Mall, Vancouver, BC V6T-1Z4, Canada Abstract The Stillwater Complex, Montana (USA)...Boulder mine (2709.28 Âą 0.32 Ma), and West Fork area (2709.00 Âą 0.45 Ma). A U-Pb baddeleyite date from...the results illustrate that the J-M Reef is an intrusion-wide time marker that formed at ca. 2709 Ma during...Stillwater Complex is a large mafic-ultramafic layered intrusion situated along the northern front of the Beartooth...2010; Muskox intrusion, Mackie et al., 2009), intrusions with chromitite horizons (e.g., Bird River Sill |  | | Journal (article/letter/editorial) | | Geoscience Studies, Carleton University, Ottawa, Canada Platinum-Group Minerals and Other Solid Inclusions...laurite b) erlichmanite c) silicate d) pyrite e) pyrrhotite f) chalcopyrite g) fluid inclusions < 100 5-15...plotted on Fig. 3. Laurite analyses from the Bird River Sill, Manitoba, Stillwater Complex, and Big Trout...examined, but they have been identified from the Bird River Sill. According to the classification of Harris...Montana, ~ Crystal Lake Gabbro, Ontario, 9 Bird River Sill, Manitoba, | Bushveld Complex, South Africa |  | | Journal (article/letter/editorial) | | iron sulfide described by Jambor from the Muskox Intrusion has been found in the Lizard ultramafics in...has briefly described the occurrence in the Muskox intrusion of an unusual fibrous sulfide, intimately...it was wholly converted to an intergrowth of pyrrhotite, magnetite, and an unidentified transparent phase...compositional similarity of the Pol Cornick and Muskox minerals lends some support to its validity as...assemblagesinvolving the fibrous sulfide in the Lizard Intrusion are complex and little understood, but it is possiblethat |  | | Journal (article/letter/editorial) | | Mineral Resources Division,GeologicalSurveyof Canada,601 BoothStreet,Ottawa, Ontario, CanadaK1A OE8...Gander terrane of the Appalachianorogen. The intrusion is dominatedby olivineplagioclasecumulates,olivine...havean affinityto the mid-oceanridgebasalts. The intrusion containsnumerouszones of significantNi-Cu sulfide...principalsulfidemineralsare thosetypicalof magmaticassemblages: pyrrhotite,pentlandite, and chalcopyrite.Ni and Cu concentrations...sulfide detail the lithologicunitsmakingup the intrusion,to mineralization in the Appalachian-Caledonianorogen |  | Park, Y.-R., Ripley, E. M., Miller, J. D., Li, C., Mariga, J., Shafer, P. (2004) Stable Isotopic Constraints on Fluid-Rock Interaction and Cu-PGE-S Redistribution in the Sonju Lake Intrusion, Minnesota. Economic Geology, 99 (2) 325-338 doi:10.2113/gsecongeo.99.2.325 | Journal (article/letter/editorial) | | and Cu-PGE-S Redistribution in the Sonju Lake Intrusion, Minnesota YOUNG-ROK PARK,* EDWARD M. RIPLEY,â ...Bloomington Indiana 47405 Abstract The Sonju Lake intrusion, part of the 1.1 Ga Midcontinent rift-related...apatite diorite. Disseminated sulfides in the intrusion have δ34S values that range from â2.2 to 3 per...interval. δ18O values of plagioclase from the intrusion range from 5.6 to 12.0 per mil (V-SMOW) and indicate...(δ18O ~3â5 â°) interacted with the rocks of the intrusion at temperatures less than ~275°C. Clinopyroxene |  | | Journal (article/letter/editorial) | | contains 1.7 percent cumulus chromite and traces of pyrrhotite, pentlandite, and chalcopyrite. Postcumulus plagioclase...the rock altered. (d) sample NB-9/955; thompsonite area, 0.9 mm across; 78.0 percent of plagioclase in the...Coleman, R.G.: Jadeite deposit of the Clear Creek area, New Idria district, San Benito County, California...high-temperature peridotite intrusions in the Lizard area, Cornwait. Jour. Petrology 5, i34-188 (1964) Hess...Excursion A29, Muskox intrusion and coppermine river lavas, northwest territories, Canada. Internat. Geol |  | O'Driscoll, Brian, Day, James M.D., Daly, J. Stephen, Walker, Richard J., McDonough, William F. (2009) Rheniumâosmium isotopes and platinum-group elements in the Rum Layered Suite, Scotland: Implications for Cr-spinel seam formation and the composition of the Iceland mantle anomaly. Earth and Planetary Science Letters, 286 (1) 41-51 doi:10.1016/j.epsl.2009.06.013 | Journal (article/letter/editorial) | | regarded as a classic example of a layered maďŹc intrusion that formed by open-system magmatic differentiation...Suite compared with the Bushveld, Stillwater or Muskox layered intrusions (N1000 km3; Lambert et al.,...aspect of the Rum Cr-spinel seams and layered intrusion Cr-spinel seams in general is how and when they...and Western Layered Intrusions and the Central Intrusion that make up the Rum Layered Suite. The geological...geological map of the Eastern Layered Intrusion shows the sampling localities for the Unit 7â8, Unit 9 and |  | | Journal (article/letter/editorial) | | . . . . Allanite from the Mount Wheeler 'White area, Pine County, N e v a d a( L e e ,B a s t r o m...Aragonite in the Franciscan rocks of the Pacheco Pass area, California (McKee) Argillaceousrocks, a scheme...naturally occurring hexagonal metal-deficient, pyrrhotite by an r-ray spacing method twinning of qtartz...with Lee, D. E, Allanite from the Mount Wheeler area. White Pine 1327 County,Nevada. .. Basumallick,...Fahey, J. J. Occurrence of stevensite in the Green River formation of Wyoming. Bravoite zoning, a statistical |  | | Journal (article/letter/editorial) | | discovered in drill cores from the Muskox Intrusion, N.W. T., Canada by Jambor (1969). Clark (1970) reported...those brown. yellowish yellowish 10.8-17.6%. pyrrhotite, INTRODUCTION (Manuscript deposit irregular...boundaries and its skarn" Prefecture. about grain pyrrhotite in Iwate from and pleochroism calcite ...occurrence same small moreover of seldom pyrrhotite. of cuprian of . the composed titaniferous... to polish softness. of or sphalerite. pyrrhotite microscope, strong brown polishing considerably |
|
