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| GEOLOGY OF THE NORTHERN PART OF THE IRON RIVER DISTRICT IRON COUNTY, MICHIGAN By H. L. James and C. E. Dutton...COOPERATION WITH THE GEOLOGICAL SURVEY DIVISION MICHIGAN DEPARTMENT OF CONSERVATION UNITED STATES DEPARTMENT...Siltstone-sericitic slate oo Black graphitic slate • . Iron-formation Hanging-wall strata Magnetic ironstone... . North Mineral Hills fault • . South Mineral Hills fault . . • • . Central Mineral Hills fault Other...Generalized geologic map of the northern part of the Iron River district • . . • • In pocket z. Columnar |
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| and Ore Deposits of the Iron River-Crystal Falls District, Iron County Michigan GEOLOGICAL SURVEY PROFESSIONAL...of the Michigan Department of Conservation PAPER 570 Geology and Ore Deposits of the Iron River-Crystal...River-Crystal Falls District, Iron County Michigan By H. L. JAMES, C. E. BUTTON, F. J. PETTIJOHN, and K. L...cooperation with the Geological Survey Division of the Michigan Department of Conservation UNITED STATES GOVERNMENT...formations. _______________________________ Baraga Group._____________________________ Hemlock Formation___________________ |
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| Silver Crater Mine, Cardiff. Specimen measures 6 cm by 4 cm by 3 cm. National Mineral Collection specimen...Bancroft. Specimen measures 21 cm by 20 cm. National Mineral Collection specimen No. 36463. National Museum...August, Bancroft is the scene of a mineral show featuring mineral/gem dealers, specimen trading and field...occurrence Davis Hill occurrence Princess sodalite mine Vardy quarry Golding-Keene quarry Egan Chute occurrences...corundum occurrence Childs Mine Rankin Mine Bessemer (Mayo) Mine Ruby (Jewell Ruby) Mine Bancroft to Maynooth |
 | Hofmann, Axel, Bekker, Andrey, Dirks, Paul, Gueguen, Bleuenn, Rumble, Doug, Rouxel, Olivier J. (2014) Comparing orthomagmatic and hydrothermal mineralization models for komatiite-hosted nickel deposits in Zimbabwe using multiple-sulfur, iron, and nickel isotope data. Mineralium Deposita, 49 (1) 75-100 doi:10.1007/s00126-013-0476-1 | Journal (article/letter/editorial) |
| nickel deposits in Zimbabwe using multiple-sulfur, iron, and nickel isotope data Axel Hofmann & Andrey Bekker...these competing models. Massive ores at Shangani Mine show mass-dependent fractionation of sulfur Editorial...Laboratory, Carnegie Institution, Washington, DC 20015, USA P. Dirks School of Earth and Environmental Sciences...mass-independent Δ33S values in ore samples from Trojan Mine likely reflects high-temperature assimilation of...superimposed lowtemperature hydrothermal remobilization. Iron isotope values for most Ni-bearing sulfides show |
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| Ontario By D. F. HEWITT Chief, Industrial Mineral Section Ontario Department of Mines and Northern...in a Silurian lagoon about 400 m.y. ago; Welland County. (Courtesy Shell Canada Ltd.). right: left: —...12 12 14 14 15 Feldspar Group Orthoclase 15 Plagioclase 16 Mica Group 17 17 Muscovite Phlogopite...19 Biotite Amphibole Group Hornblende Actinolite Tremolite Pyroxene Group Augite Hypersthene Diopside...Diopside Olivine Nepheline Garnet Group Garnet Staurolite Zircon Sphene Titanite Secondary Minerals |
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| __ Metadiabase sills in Negaunee Iron-formation near National Mine, Mich., by George C. Simmons ___________________...Lake sill ______________________________ National Mine sill _____________________________ Ash-flow stratigraphy...____________ Age of Pony Trail Group in the Cortez Mountains, Eureka County, Nev., by J. Fred Smith, Jr...Precambrian X metadiabase sills in Negaunee Iron-formation near National Mine, Mich _ 7. Columnar sections of metadiabase...indiAl A2 CONTRIBUTIONS TO STRATIGRAPHY cate the group or formation names as appropriate. If a unit extends |
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| CATALOGUE OF THE ONTARIO LOCALITIES REPRESENTED BY THE MINERAL COLLECTION OF THE ROYAL ONTARIO MUSEUM By J. Satterly...hematite coating. Faraday Mine, Lots 16 and 17, Con. XI, Faraday Township, Hastings County, Ontario. ROM:M31141...Catalogue of the Ontario Localities Represented by the Mineral Collection of the Royal Ontario Museum; Ontario...public aware of the importance of the Ontario mineral industry and the staff at the Royal Ontario Museum...much-needed list of the Ontario localities of mineral specimens in the ROM collection. Such a comprehen |
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| Chance___________________ Price___-__________-----------_-------Cardiff...________---__-------____----History and production__...___________ Geology.__________________________ Michigan-Utah.__ _ -__-____:_____-__.__ History and pr...---__--------___-22 A, Metamorphosed nodule of chert from Deseret limestone; B, Quartz diorite from Clayton..._---------_ 86 A, Ore from Cardiff mine; B, Ore from Columbus-Rexall mine--_______-________-_____-___-____--__-_----_...replacing pyrite, Cardiff mine; B, Chalcopyrite (veins) replacing pyrite, Columbus-Rexall mine.___________ |
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| UTAH by Kenneth C. Bullock UTAH GEOLOGICAL AND MINERAL SURVEY a division of the UTAH DEPARTMENT OF NATURAL... MINERALS AND MINERAL LOCALITIES OF UTAH by Kenneth C. Bullock Nature displays her most common mineral, quartz... . . . . . . . . . . . . . . . . . . . . . . 1 County Listings. . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . 4 Mineral Localities Listed by County . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . 7 Beaver County . . . . . . . . . . . . . . . . . . . . . . . |
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| IRON AND MANGANESE. TONNAGE ESTIMATES OF CLINTON IRON ORE IN THE CHATTANOOGA REGION OF TENNESSEE, GEORGIA...of the productive and possibly productive Clinton iron-ore fields within a radius of 80 miles of Chattanooga...average thickness of the 0 The complete statistics of iron-ore reserves embodied in the conservation report...PART I. prisms of ore were the content of metallic iron and the percentage of probably recoverable ore....recoverable proportion. The percentage of metallic iron controls not only the value of the ore, but also |
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| Court, 1-3 Windsor Place, Cardiff, CF10 3BX. EDITORIAL BOARD: RE. Bevins, Cardiff, u.K. RS.W. Braithwaite...and several other arsenic bearing, manganese and iron oxide rich quartz veins in the area are probably...spring issuing from the fracture which hosts the iron manganese mineralisation. 1 100 G~ t---I Kilometers...situated in the Caldbeck Fells, the northern most group of hills in the English Lake District (Fig. 1). It is...area around Carrock Mine (Appleton and Wadge, 1976) shows three, roughly paralleL iron manganese veins trending |
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| Geometallurgy of Trace Elements in the Hrazdan Iron Deposit Rob Bowell 1, *, Christopher Brough 2 ,...Arman Vardanyan 4 1 2 3 4 * SRK Consulting, Cardiff CF10 2HH, UK Petrolab Limited, Redruth TR15 3AE...of arsenic and other trace metals in the Hrazdan Iron-Ore project in Armenia using a methodology typically...is pyrite and oxidized equivalents. Pyrite is a mineral of elemental concern as it has the potential to...neutral to alkaline mine drainage. From the geometallurgical assessment of the mine waste, the results |
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| occurs in dunes on the shore of Dogs Bay, Connemara, County Galway, Ireland. A small sample of this sand has...donated by W. E. Howarth, National Museum of Wales, Cardiff, Wales. Tourmaline Sand from California The following...Reservation, the site of the old Himalaya tourmaline mine. "The person who collected this sand is now an old...and 1910 from a creek bed a few miles below the mine. "When I saw the sand two years ago, I made a trip...spodumene, and a few muscovite flakes. The Himalaya mine is in Mesa Grande, San Diego Co., Calif. Beach Sand |
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| Dahlonega Co. and Rabum Co., and the McDuffie County Belt extending through portions of McDuffie, Warren...Sphalerite. BALDWIN COUNTY MILLEDGEVILLE, at state farmjasper. BANKS COUNTY COMMERCE, along Hwy. 59...along adjoining Co. linerock crystal. BARROW COUNTY WINDER, along rd. to Jefferson and 1½ mi. inside...Guide for Rock Hounds in the United States BARTOW COUNTY AREA, Saltpeter Cave, as floatjasper. CARTERSVILLE:...pitsBarite, Geodes, Goethite, Hematite, Limonite, Iron minerals; area mines, as important producersBarite |
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| 76 THE CARBONIFEROUS LIMESTONE OF THE CARDIFF DISTRICT . By P rinc ipal T . FRA:-':K Ll N S I B LY,...oniferous Lim est one Series in th e neighb ourhood of Cardiff, applying th e syste m of zoning est ablished by...References p . 92. CARBONIFEROUS LIMESTONE OF THE CARDIFF DISTRICT. 77 2.-SPECIAL INTEREST OF THE DISTRICT...Carboniferous Limestone in the neighbourhood of Cardiff presents many features of special interest. The...is found on the edge of the coalfield, north of Cardiff. The sections on the coast at Barrv afford one |
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| SERIES BULLETIN C 67 GEOLOGY AND MINERAL RESOURCES OF YORK COUNTY PENNSYLVANIA By GEORGE W. STOSE.... . . . . . . . . . . 3 The Hellan1 and Pigeon Hills . . . . . . . . . . . . . . . . . . . . . . . ......... . ....... . ..... . ........ . Xe11·,1rk group ..................... . ......... . .... . .......briiron f urnaC'e ..... . . ...... . ...... . ...... .....)fartinsburg shale to older formation in northern York County . . . . . . . . . . . . 8 l 5. Geologic map of |
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| volumes years and from KS BOOKS ITEMS No Mineral over \ ( B RARE Books ON (Gems and everywhere...knowledge, however, that calcite is a most versatile mineral as regards the pat- terns of its crystals. This...of “Dad” Zeitner. I'll wager he has been a Black Hills Prospector. Good diggins folks! March, 1953 — Earth...currently being quarried by the Cardiff Green Marble Company, in Hartford County, Maryland. The company has...Wood Mine in Lancaster County, Pennsylvania, just across the Maryland State Line. This mineral has the |
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| region easy of access. The contrast-betwee n the "hills," as the • T h is chapter was recei ved b y the...a variety of ages, ranging from Silurian near Cardiff and in Gower to Coal Measures near Llantrisant...order, it becomes necessary to oscillate between Cardiff and Gower more freely than would be advisable in...unsuspected. The one lies about two miles north of Cardiff, and was first recognised by the Rev. Norman Glass...Tiddeman in 19°1. t Cardiff or Rumney lnlier.-This inlier forms low rounded hills on the two sides of |
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| then westwards to the most easterly point of the County boundary of Dumbarton ; southward alo � the boundary...Scotland District ; also the remaining part of the County of Lnnark not included in the East Scotland and...Cumberland, ·westmorland and the North Riding of the County of York. Divisiorull Inspector : ·r. A. Jones,...COVERED County of Northumberland. . SENIOR DISTRICT INSPECTORS . Tb.at part of the County of Durbnm...Northumberland. Whitley Bay 4756. That part of the County of Durham not included in the North Durham H. F |
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| BEACH. By Franklin B. Hanley...... ROCKS, MINERALS, IRON. By D . Lan10 11 .... . .............................. 370 371 376 377 FORMS OF SILICA, FLINT, CHERT AND BEEKITE. By uv. E. Ho!1·art,:1 .................................. 383 OPALIZED WOOD OF MESA COUNTY, COLORADO. BJ' UV. C. l\1inor ...................................................... STRATEGIC MINERAL DEPOSITS BEING INVESTIGATED ........ PROPOSED BLUE.......... 391 CLUB AND SOCIETY NOTES BRIDGEPORT MINERAL CLUB . . . . . . . . . . . . . . . . . . . . . |
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| 365 The Mineral Industry in WalesA Review of Production Trends, Resources and Exploitation Problems...METALLIFEROUS MINERALS (a) (b) (c) (d) (e) 8. 9. Iron are Lead and Zinc Ores Manganese are Copper Ores...381 382 382 383 ABSTRACT: The full range of mineral resources of economic significance is discussed...its indigenous raw materials. Nevertheless the mineral resources of the country are rather limited in...brick-making and allied uses; iron ore; special sands with a high silica content; slate; chert and relatively minor |
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| 334:. NE"\VH.-\ VEN, EASTJ3OURNE . . 3 0 268. CARDIFF ancl \VORLE • S0�1 ER339. NE\VTO.N ABBOT .. 3 0...MAPS (SIX·INCHJ. The Coal-field8 a.nd other mineral districts of the N. of E11gland are iu part l)Ublished...maintains the same ge11eral character as in the Cardiff district. Thick but impersistent limestones appear...Transverse section, Mwyndy Mine.· By S. VIVIAN • ,, 11. Transverse section, Trecastle Mine. By S. VIVIAN - -...to Cowbridge on the south side of the Cowbridge-Cardiff anticline ; the corresponding escarp ment which |
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| 144 ROCKS AND MINERALS WORLD NEWS ON MINERAL OCCURRENCES Items on new finds wanted. Please send them...neither of the two soldiers, nor even Patricia, are mineral collectors. The Forans suffered a heavy blow recently...2% U 3 O g . I have been reading about the new mineral finds in each state in the copies of ROCKS AND...collected on some mine dumps around Marble Peak in the Santa Catalina Mountains, in Pima County, Arizona. A...extensive trader. ARKANSAS: Some years ago a mineral was found in Arkansas which was thought to be related |
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| Street, Manchester 1; ,, St. Andrew'• Cre.cent, Cardiff 80, Chichester Street, Belfast or through any Bookse11er...address of the owner, the name and situation of the mine, the names of manager and under-manager, number...coal, arranged according to the mineral obtained (p. 352). (5) A County Index (page vii) which precedes...eluded irrNo.2Division) ; Cheshire; that part of the County of Staiiord lying to the North of the Road lrom...C•rdiff and Forest of Dean Dl,iaion, comprising the County of Monmo uth, part of the Cow\ties of Glamorgan |
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| Roberttt_C.8.E., 1\f.C. Principal Electrical Inspector of Mine, ... R. ):•,ttr11: C.B.E., u.S.O., M.C. Deputy Principal...then w"'twards to the most easterly point of the CountY bounda,:y of Dumbarton ; southward alo he boundary...Eat Scotl&nd District ; also the remaining f the County of Lanan< not included in the Eut Scotland and...Cumberland, Westmorland and the North Riding of the County of York. Divisional Inspector : T, A. Jones, Crown...Northumberland. Whitley Bay 23905. That part of the County of Durham lying to th e North and W<-st of the |
