 | | Report (issue) | | (CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur...the surface and between the nodular masses. The Michigan Bicentennial symbol (back cover) incorporates...Survey Division BULLETIN 6 THE MINERALOGY OF MICHIGAN by E. Wm. Heinrich Professor of Mineralogy and...University of Michigan Ann Arhor, Michigan Lansing, Michigan 1976 STATE OF MICHIGAN WILLIAM G. Mrr...State of Michigan CL '48 s.321.6. Printed by Speaker-Hines and Thomas, Inc., Lansing, Michigan. Available |  | | Journal (article/letter/editorial) | | Michigan Mineralogy: A LOCALITY INDEX TOM MORRIS, JR. 4553 Shenandoah Allen Park, Michigan 48101 Tom...occurrences. These localities have been listed by county; and, strictly for convenience, the list has been...compiling this information was The Mineralogy of Michigan (Heinrich, 1976), which should be consulted by...locality labeling of Michigan specimens. It should be pointed out that the list of Michigan mineral localities...NoneĀ theless, with the aid of a good state or county map, plus local inquiries, the list could be helpful |  | | Book | | Mineralogy of Michigan by E. W. Heinrich updated and revised ā¢ by George W. Robinson M By E W~ Hellnr]ch...Museum Michigan Technological University Houghton, Michigan 49931 2004 Ā© MINERALOGY OF MICHIGAN 3 FOREWORD...FOREWORD Michigan has a long and varied geologic history that includes repeated episodes of volcanism...before the first Europeans set foot here. When Michigan became a state in 1837, one of the first actions...and we continue to learn more about them today. Michigan minerals helped to build the state and nation |  | | Journal (article/letter/editorial) | | on the campus of the sault Ste. Marie Branch of Michigan Technological university in conjunction with the...Counties, Michigan A. P. Ruotsala, G. J. Koons, and S C. Nordeng The Mn-bearing minerals of Champion mine...mine, Champion, Michigan 10:2.5 Unique intergrowth of calcite and pyrite 9:45 Larry L. Babcock Paul W...MANGANESE.BEARING X{INERALS OF CHAMPION CHAMPION, MICHIGAN L. Belcocx, MINE. Michigut, Tecl,tnol,ogi.cal...Michigon champion Mine is a "hard" iron ore producer on the southern limb of the Marquette synclinorium |  | | Journal (article/letter/editorial) | | gold-quartz-sulfide lodes have been mapped. The Champion quartz lode system has been mined over a strike...mineralized wall-rock composedof diopside,hornblende,cummingtonite,epidote and biotite, and flankedby thick micaceous-altered...feet belowsea-levelat Madras) in the ChampionReef mine at the centerof the field. To date more than 40...valuableore still persistsat depthin ChampionReef mine, mostof the payableshootsalongthe main Championlode...consistingof about23 squaremiles. The Ooregaumgold mine ceasedas an independentmine in July 1953 and was |  | | Journal (article/letter/editorial) | | specimens from the Red Devil Mine, copper nuggets from the Kennecott mine, etc. and I can assure you that...the numerous tungsten mines in the Darwin, Inyo County, California, area."ānote from James H. Richardson...on the south bank of the Etowah River, in Dawson County, Ga. Chatoyant masses of olive-gray tourmaline...found this specimen at Graveyard Point In Owyhee County, Idaho, in 1957."āon label accompanying the agate...beneath a 5 foot vein of coal occurs at a coal strip mine near Melrose, Monroe Co., Iowa. Found by Michael |  | | Journal (article/letter/editorial) | | gibbsite, biotite, chlorite, muscovite, 429 Groverake mine, Rookhope, Weardale, Durham, copper, copiapite,...lepidolite, 289 Derbyshire Cobbler mine, Bonsall, fluorite, 4oi Jughole mine, Masson Hill, Matlock, fluorite...fluorite, baryte, 81 I Ladywash mine, Eyam, fluorite, 4Ol Mare Tot mine, Castleton, fluorite (Blue John), 363...Masson Hill, Matlock, fluorite, baryte, 81 I Oxclose mine, Masson Hill, Matlock, fluorite, baryte, bravoite...(weathered), 448 Sgeir nan Sgarbh, South Harris, cummingtonite, hornblende, 464 Srbn Bheag, Ardnamurchan, carbonated |  | | Journal (article/letter/editorial) | | pelitic and mafic gneisses. The stability of cummingtonite and biotite over much of the terrain places... A ~ / I9 4 2-Pyroxene ~/z/, ; ALLENDALE 'CHAMPION / / //~H20-T l~176176UPl "UMBERUMBERKA 9 "CENTENNIAL...this boundary by 10~ 20 ~ C. The stability of cummingtonite (Mg/(Mg + Fe) =0.35-0.50) and absence of orthopyroxene...Hill data and the dehydration equilibria for cummingtonite and muscovite. Temperatures for Allendale (740...amphibole end-members such as tremolite and cummingtonite in natural hornblendes, and the complexity of |  | | Journal (article/letter/editorial) | | 400 MPa, based on the reaction of biotite + cummingtonite + anorthite to almandine + grossular + biotite...al., 1998). This study complements the published mine-scale study of the Nevoria deposit and previous...metamorphic, and hydrothermal events in the wider Nevoria mine area. The precise age of the Nevoria skarn agrees...in the west to 2.75 Ga in the east of the belt (Champion and Sheraton, 1997). The mean chemical composition...continent (Rock et al., 1990; Cassidy et al., 1991; Champion and Sheraton, 1997). Many are spatially associated |  | | Journal (article/letter/editorial) | | primary bedding with alternating quartz-rich and cummingtonite- and garnet-rich layers. (e) Typical microstructures...microstructures from the quartz- and cummingtonite-rich portions of (d). Oblique foliation, as deļ¬ned by long...includes andalusite schists (Fig. 7c) and garnetācummingtonite quartzite (Fig. 7d and e). At outcrop scale...quartz layers alternating with hornblende + cummingtonite-rich and garnet-rich layers (Fig. 7d and e)...0 wt.% SiO2) typical of Archean granites (e.g. Champion and Smithies, 2007; Martin et al., 2005). They |  | | Journal (article/letter/editorial) | | amphibolite-facies metamorphism at Plutonic Gold Mine (Plutonic), Marymia Inlier, Western Australia, were...exhumation. KEY WORDS: mineral equilibria, Plutonic Gold Mine, Theriak/Domino, thermobarometry, THERMOCALC. INTRODUCTION...by Proterozoic basins (Figure 1). Plutonic Gold Mine (Plutonic) is located in the Plutonic Well Greenstone...concentrations of Au at Plutonic occur mainly within the Mine Mafic Package that consists predominantly of garnet-free...Mg-tholeiite (Upper Mine Mafic Package) and calc-alkaline composition (Lower Mine Mafic Package) (e.g |  | Clynne, Michael A., Calvert, Andrew T., Wolfe, Edward W., Evarts, Russell C., Fleck, Robert J., Lanphere, Marvin A. (2008) The Pleistocene eruptive history of Mount St. Helens, Washington, from 300,000 to 12,800 years before present. Professional Paper 1750_28. US Geological Survey doi:10.3133/pp175028 | Report (issue) | | and plagioclase and originally may have been cummingtonite. Plagioclase displays various zoning patterns...and Fe-Ti oxides and may have originally been cummingtonite. The groundmass contains abundant tiny microlites...the abundance of hornblende and paucity of cummingtonite suggest that these pyroclastic-flow deposits...abundant hornblende, biotite, quartz, and sparse cummingtonite in a glassy groundmass with very sparse microlites...plagioclase, quartz, biotite, green hornblende, and cummingtonite, contains charred woodchips, and overlies a |  | | Journal (article/letter/editorial) | | 1975) has shown the presence of the Broken Hill Mine Sequence to the NW of the Globe Vauxhall Shear Zone...as FeO -- Hobbs, 1975) and contain garnet + cummingtonite in the Amphibolite Facies. At higher grades...(Little Broken Hill) B.H.B. and Centennial-Parnell--Champion area. Some of the surrounding areas that lack...Project. Unpubl. Rep. on second year of work to B.H. Mine Managers' Association. Katz, M.B., 1976. Broken |  | | Journal (issue) | | TeHurium Sulphur Dinmond Gra1,hitc GOLD Albemarle County.-"Streaks" occur in quartz veins in slate belt...east of SouthĀ western Mt. (ll. 8). Buckingham County.-A placer gold specimen about 7 x 10 x 17 mm. which...collections of the Smithsonian Institution. Culpeper County.-Two specimens with flakes of gold up to 1 cm....Smithsonian Institution. Dinwiddie County.-Two specimens from the Whitehall Mine with gold, tetrnĀ dymite, limonite...error and should refer to Spotsylvania County.) Fairfax County.-A specimen of gold with galena in quartz |  | | Journal (article/letter/editorial) | | effect of [NaOH] on obliquity, 455 Alice Louise mine, Plaine des Pirogues, New Caledonia, chrome-picotite...analogue, 78 Ankerite, Scotland, 119 Anna Madeleine mine, Plaine des Lacs, New Caledonia, olivine, chrome-picotite...fluorite containing Mn impurities, 705 Bambollita mine, Moctezuma, Sonora, Mexico, cesbronite, 744; quetzalcoatlite...effect on crystallization of, 64I Bauzot uranium mine, Issy l'l~v6que, Sa6ne-etLoire, France, fluorite...Mtns., India = Khandala Ghat, Poona, 658 Bien S~tr mine, Pirogues Valley, New Caledonia, chrome-picotite |  | | Journal (article/letter/editorial) | | four successive gi'anite-gneisses, namely: the Champion Gneiss, the Peninsular Gneiss (forming the greater...were usually associated with intrusions of the Champion Gneiss, to the intrusive character of some of...largely of highly ferruginous amphiboles (such as cummingtonite) or other chemically allied minerals. II.āMINERALOGICAL |  | | Book | | copper district of Michigan 33 35 35 Copper mining on Isle Eoyal and elsewhere Marquette iron district...developments 45 ., 45 Clinton iron ores of Dodge County, Wis 45 Paleozoic iron ores in western Wisconsin...geologic 70 knowledge 72 Bibliography 73 Michigan Northern Wisconsin Minnesota 77 Ontario 81...Michipicoten district Region north of Sault Ste. Marie Marquette 95 96 district Menominee 96 96 97 district...Michipicoten Island Keweenaw Point and northern Michigan and Wisconsin Keweenawan mesas Huronian monoclinal |  | | Journal (article/letter/editorial) | | re-melting of older TTG-like continental crust (e.g., Champion and Sheraton, 1997; BĆ©dard, 2006; Van Kranendonk...those of the contemporaneous Callina Supersuite (Champion and Smithies, 2007). Much larger volumes of TTG-like...and consequences. J. Geol. Soc. 164, 709ā730. Champion, D.C., Sheraton, J.W., 1997. Geochemistry and...growth processes. Precambrian Res. 83, 109ā132. Champion, D.C., Smithies, R.H., 2007. Geochemistry of Paleoarchean...Martin, H., Smithies, R.H., Rapp, R., Moyen, J.-F., Champion, D., 2005. An overview of adakite, tonaliteāt |  | | Report (issue) | | geologic map of San Mateo County (Brabb and Pampeyan, 1983) and Santa Cruz County (Brabb, 1989, Brabb and...various sources in a small part of Santa Clara County. These new data are released in digital form to...potential. Work by Brabb and others (1972) in San Mateo County provided the first such study using two factors...(Late Cretaceous) fossils that crops out in Marin County. Because the Franciscan was subducted under the...one area, and are steeply inclined throughout the county. Pleistocene strata and marine terraces have not | | | Journal (article/letter/editorial) | | Tumkur. canics, a felsic volcanic rock, i.e. Champion Gneiss (Ziauddin, 1967; Viswanatha and Ramakrishnan...o0 . + + I'L-'YqFeldspo.thic schist + + ~ (Champion gneiss) Ć· F+ vX~ + D I r o n formQtion Ć· t'...main types (Mukherjee and Natarajan, 1985): (1) Champion lode type; (2) Oriental lode type; (3) Mallappakonda...Mallappakonda type; (4) Nayakanhalli type. The Champion lode type of Au deposit are located along shear zones...schistosity at low angles. To this group belong the Champion, the Mundy and the Muscom lode systems and also |  | | Journal (issue) | | Menlo Park, CA Donald R. Peacor University of Michigan Ann Arbor, Ml George W. Robinson Natl. Museums...paragenesis of the Little Three mine pegmatites, Ramona district, San Diego County, California ...............plus an interesting range o f rare species. The mine, first opened in 1903, continues to produce fine...fine specimens. T INTRODUCTION The Little Three mine is one of several mines located on the Little Three...property in the Ramona district, San Diego County, California. This mine, strictly speaking, is developed in |  | | Journal (article/letter/editorial) | | including gold. However. except for the Homestake mine, which has operated for more than 120 years, most...FiridofGt~rnSphultirite ut IIIP Bulinut Zinc Mine, St. Luwrence County, tditor of NPW b r k ā unrl iipptwwl...and additions. Mlneral Index by Counties Brule County Elm Creek, IS mi. S. of Chamberlain, near junction...of Pierre Formation: barite (gray roses). Butte County Belle Fourche, 6 mi. W., secs. 23, 24, 25. and...Moreau River: barite* (similar to Elk Creek. Meade County, but smaller), calcite (yellow crystals), gypsum |  | | Journal (article/letter/editorial) | | & Nisbet, 1982). The con- Champion, & Cassidy, 2003; Smithies, Champion, & Van Kranendonk, trasting...geochemical diversity recorded 2015; Smithies, Champion, van Kranendonk, Howard, & Hickman, in alkaline...within SBG III, which was emplaced dur- netiteācummingtonite schists, quartzites, banded calcāgneiss, and...rare earth elements (REE) were contain curved cummingtonite, hornblende, talc, serpentinite with analysed...showing magnified of long and curved prisms of cummingtonite (Cum) occurring in talc (Tlc) in ultramafic |  | | Book | | variety, etc. T Tsumeb (vol. 8, no. 3) M y Michigan Copper Country (vol. 23, no. 2) Co. Company...five book-format issues (8/#3, Tsumeb; 23/#2, Michigan Copper Country; 23/#4, Yukon Phosphates; 24/#2...On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54 AFGHANISTAN...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298 |  | | Book | | Sciences, University of Missouri, Columbia, MO 65211, USA (bauerr@missouri.edu) R.W. BELCHER Department of...Laboratory, Syracuse University, Syracuse, NY 13244-1070, USA (mebickfo@syr.edu) C.O. BĆHM Manitoba Geological...Louisiana State University, Baton Rouge, LA 70803-4101, USA (gbyerly@geol.lsu.edu) A.J. CAVOSIE Department of...Rico, PO Box 9017, MayagĆ¼ez, Puerto Rico 00681, USA (acavosie@uprm.edu) K.R. CHAMBERLAIN Dept. of Geology...of Wyoming, Laramie, WY 82071, USA (kchamber@uwyo.edu) D.C. CHAMPION Geoscience Australia, GPO Box 378 |
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