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| Sulfide Oxidation and Production of Gossans, Ashanti Mine, Ghana R. J. Bowell a a Department of Geology...Sulfide Oxidation and Production of Gossans, Ashanti Mine, Ghana, International Geology Review, 36:8, 732-752...Sulfide Oxidation and Production of Gossans, Ashanti Mine, Ghana1 R. J. BOWELL Department of Geology,...At the Justice mine, in the Ashanti goldfields of southwestern Ghana, chemical weathering of gold-bearing...geochemical features that are diagnostic. In this type of gold mineralization, the most abundant sulfides are arsenopyrite |
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| Ver' "\ ~~ • THE MINERAL AND ROCK RESOURCES OF GHANA f btYON RALPH Dedicated to my parellfs for not...ISBN 90 6191 597 X paper edition only for sale in Ghana © 1985 A.A.Balkema, P.O.Box I 675, 3000 BR Rotterdam...REPUBLIC OF GHANA- GEOGRAPHY,PHYSIOGRAPHY,GEOLOGY AND GEOHYDROLOGY 6 3. THE MINERALRESOURCESOF GHANA - BACKGROUND...EXPLOITATION IN GHANA 572 12. TABLES OF SUMMARY OF MINERAL AND ROCK RESOURCESOF GHANA 577 13. LEGISLATION...590 APPENDIX 597 INDEX 602 V Preface The Ghana Geological SuJ;"vey DepaJ;"tment in 1.962, published |
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| Arizona Strike *257 W. R. Feldtmann Ashanti Gold IMines 127 Ashanti Goldfields Corporation Report. 124...Australian Metal Position H. R. Sleeinan. 33 Australian Mine Tax . . . . . . . . *206 47 247 Report...Boovsens 126 218 Boston Creek, Ontario Bradeu Copper Mine, Smelting at. (m.d.) ... 117 344 Bragg. W. H X-rays...110 {m.d.) .... Balaghat Developments Balaghat Gold . ; . . .- . . . . . Hill, Xorth ....Institute and a Charter Canadian Mine Taxes 187, F. H. Hamilton. Canadian Mine Taxes Cape Copper Report .. |
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| these defects would necessitate a special research project. A student of Negro Africa is particularand of...CONTENTS Page PREFACE 5 I. GOLD AND SILVER 11 Gold West Africa: Gold in the Past West Africa; Modern...IN NEGRO A7RICA I. GOLD AND SILVER GOLD him, and that they all spent so much gold on the bad merchandise...offered them in Cairo the that the value of the gold dinar on Cairo exchange dropped to six dirhems....metallurgy. I do so for two reasons. First, a review of gold will probackground of vide us with an historical |
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| that excavation costs are balanced by avoiding project delays and the high costs of surface environmenta...properties with wh ich engineers must deal in their project work. (con tinued on page 30) GEOLOGICAL RESEARCH...an anticipated completion date (ACD) for each project. The listings are grouped into major categories...Magnetite and calcite samples from Dillsburg, Grace Mine, French Creek, and Boyertown are being analyzed...Northern Shenandoah Valley. It is hoped that this project will help in determining whether or not fracture |
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| concerned., Wltnes,s the L-208 miscarriage of Justice, the disagreement over legislation to provide inllentive...can be expected. So far the lnvestlgatlon of the project that H,enry J. Kalser, wan ted to bulld, ln 1937...of the mineral. In other words, if a quicksilver mine produced one quarter of the total domestic production... and the 11ke. ***** Shipment of 700 tons of limonite from Scappoose, Oregon, has Just been made to...as in previous years when the oompany mined the limonite. Mr. Orrin Peterson, Consulting Engineer for the |
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| deposits.___________________________________________ Gold-bearing placer deposits ____________________________...mine_________________________________________________ Armstrong mine.__________________________________________ Aurora...mine______________________________________________ Beatrice mine._______________________'_____________________ Boulder...Mineral deposits Continued Mines Continued Bullion mine._____________________________________________ Crystal...___________ Josephine mine.-___-___.__--___.-_-_______-______-_-____._ Justice-Clementh (Clemantha) |
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| heard less,and they are truly bewildering play of gold in grains and nuggets; sapphires, rare in quantity...Paris is shown in large shown from the Bradford mine in .Lake County, so arches and timbers. It is thought...display of gold is especially interesting,because Among the iron ores are found magnetite, limonite, ized...prospect. The that between 1876 and 1893 Colorado mine have added lusite found in paying quantities. Salt...set up again for a farge workshop or factory. They Gold... . 63,948,263 profusion of it from San Diego County |
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| difficulties which might cause a delay in the project." It appea rs the latest ruling on the OCS is based...increase the rate and amount of subsidence above mine work ings. Second, any active organic stresses can...and faults - tend to influence stab ility of the mine roof and floor. Knowledge of the ways in wh ich...grading specifications for the last cut in a surface mine depend upon the long-term slope stabi lity of the...Topics covered in the seminar were landslides, deep mine subsidence and tributary stream flooding. Emphasis |
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| By C. Henry King ..................800 UNUSUAL LIMONITE FORMS FROM MICHIGAN. By /eff Hilt ···········-·····802....................................810 TOPABRI GoLD MINE OF G EORGIA ....................................and Minerals Association , no • ROCKS AND MINE CHIPS FROM rfHE QUARRY PALACHE'S FAMOUS REPORT... black tourmaline location. • 772 ROCKS AND MINE "The tourmaline occurs as a band running from the...778 AND MINE R ROCKS AND MIN!ERALS Who made the Rocks and Minerals, The Silver and the Gold That lay |
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| Digest.' Report Report .\bbontiakoon Mines Abosso Gold 248 303 Academy of Engineers, American 150 Adair...Separation (m.d.) .\mmonia. Leaching with .\nantapur Gold Field .-Vngio-American Corporation of South Africa...-Antarctic Geology Griffith Taylor .\ntelope Gold Mine Report -Antimony, Electrolytic -Antimony, Metallurgy...Ammonia (m.d.) 104, 20« BerridaCo. and Poldice Mine Billiton, Lode Tin at (m.d.) Blackwater Mines Report...Asphyxiation from Bleloch, W. B., and Vaal River Gold Estates Blount. B., on Chemical Balances Boleo Copper |
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| deposits________ Taylor mine. _______ Shropshire deposit 1. Shropshire deposit 2. Justice deposit_____. Hawkins...deposits at Summerville_--___ 7. Map of the Hawkins mine-____-_-___------_-_---____-_---__ 4 12 17 34 35...areas in Floyd, Bartow, and Polk Counties. The region has produced more than 400,000 tons of buxite from...reserves of high-grade bauxite are very small. The region was studied in 1942-43 as part of the strategic...of the U.S. Geological Survey. The rocks in the region include shale and quartzite of Cambrian age and |
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| data, he needs it in a hurry; their respective project schedules do not permit adequate time to carry...of Pi ll s burgh Cool o nd 1000' Co ntour l i ne Mine op e ni n gs Figure 1. Topographic and Geologic...feet in the bottom of the valley (Fig. 1). Two deep mine openings are shown also on Figure 1. These mines...the area would be mine subsidence. The southwest fac ing slope has the potential of mine subsidence and...found in a previously unre ported, but substantial limonite quartzite gossan from Bald Eagle Mountain, Centre |
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| FOREWORD vill INNOVATION AND CHANGE Argyle project—the case for commuting G. L. Walker, N. M. Butcher...plant Managing the Ranger Uranium Mine in the Alligator Rivers Region—there is much more to this business...White’s overburden heap Mine planning and scheduling at Ranger Uranium Mine—environmental requirements...Minimising sediment mobilisation within the Ranger Project Area A new paradigm for mining and conservation...CONSIDERATIONS The McArthur River Project Financing the smaller mining project: can the Banks help? The economics |
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| mining map. Smuggler Mountain Mollie Gibson mine ... Smuggler mine Summary of Mollie Gibson and Smuggler geology...tunnel DellaS. mine ... Bushwhacker mine Park- Regent mine Mineral Farm mine Alta Argent mine Smuggler Mountain...side of . . . Lenado Aspen Contact mine Leadville mine 160 161 165 167 179 180 181 185 187 188...... 202 of geology Queens Gulch Little Annie mine CHAPTER IV. Chemical geology 203 _ 205 206 Dolomization...Red Mountain XX. A. M. and S. mine. No. 6 stope XXI. A. M. and S. mine, Golconda stope XXII. Aspen Mountain |
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| very modest title of this book does less than justice to its -^ contents, for in spite of its brevity...of sandy nodules surrounded by hard crusts of limonite. It is thought that the iron may have been derived...subsequently carried down and deposited as limonite. The gold reef s are classified as " Schist Reefs"...(b) roughly parallel with the planes of cleavage. Gold in the quartz veins is seen to occupy rusty cavities...arsenical pyrites. Below the zone of oxidized ores the gold occurs in auriferous pyrites, and is termed " refractory |
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| Mountain …………………………………………………………………………… Colorado-Justice claims ……………………………………………………… North Magdalena district...……………………………………………………………………… Cuprite or Wheel of Fortune mine …………………………………………… Old Soldier vein …………………………………………………………………...Possibilities ………………………………………………………………… Buckeye mine …………………………………………………………………… Wall Street mill ………...Joyita prospect …………………………………………………………………… Dewey mine (Jenkins prospect) ……………………………………………… Copper prospects...of the Hansonburg Lead mine …………………………………… Vicinity of the Hansonburg Copper mine ………………………………… Order of |
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| nine authors working in different parts of the region. Therefore, although the senior author is responsible...____________________________ _ West Flack mine __________________ _ ~ercer County mine ______________ -German and Belcher...Iron mine, by A. A. Drake, Jr ___________ _ Jefferson-Calhoun vein _________________ _ Kirk mine ____..._______ _ Old Town mine, by A. A. Drake, Jr ______ _ Springdale (Gold Rock) mine, by A. A. Drake, J r...r ________________________ ---Telegraph mine ________________________ _ Wood vein ____________________________ |
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| term “cristallier” used in the book doesn’t do it justice either. Perhaps the best term is the German “Strahler...Haute-Savoie (High Savoy) department in the Rhône-Alpes region of France, abutting as it does on both Switzerland...story about the discovery of axinite in the rugged region known as Les Aiguilles de L’Argentière (the Needles...who have an interest in the mineralogy of that region will find it worthwhile. Quintin Wight Ottawa,...toward Koblenz, and the mines described are in the region between two tiny villages: Müsen in the Siegerland |
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| .......................... 268 STATE TAKES OVER MINE FOR WAR USE ·································-·...advertisements at the f_ront of the magazine. This project, in my opinion, is no question at all. If anyone...another cabinet we discover a superb collection of gold ore specimens. Many of these are interesting, as...beauty ; and some for the in• trinsic richness of the gold they contain. Thousands of these mineral treasures...however, that a few days before, when a friend of mine visited the • volcano, the sand and gravel was raining |
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| eraines@ Icolorado.net The Great Irony of the Cross of Gold n the long and tortuous debate over the country's...the House of Rothschild twice helped prop up the gold reserves of h c Ilnited States. The first time was...the gold reserves that would be necess,iry to allow Civil War greenbacks to be redeemed in gold as required...h c . I I.S. Treasury faced a rapidly dwindling gold reserve. I'residen t Grover ( ;levclcind struck...Rothschild to purchase US. bonds with $62 million in gold to put the 'lieasuiy's rt'wrvt's back into an acceptable |
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| guidebook is a resumé of the general geology of the region and is intended to provide general information...along or close to the principal highways in the region. The locations and means of access are indicated...for the account of the colourful history of the Mine Centre area; and (3) W. J. Ransom, Public Relations...extensive literature available on the geology of the region. For those who wish to go beyond the scope of this...the Sapawe Lake area, with notes on some iron and gold deposits of Rainy River District; Ont. Dept. Mines |
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| crystals is enlarged about three times.” In the region around Keokuk, Iowa, and along the Fox River, Ill...feared that the oppor tunity is now lost. “ The region around is a sandy pine -barren, destitute of stones...are found in considerable quantities in the same region. Readingover what I have written, I notice an...the State of Connecticut. Quartz abounds in this region, but it is inferior in quality to the Swiss or...covered with opaque white quartz, and discolored by limonite, with outer bands of mixed smoky and amethystine |
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| sent to the State Mining Bureau to be assayed for gold, silver, lead, copper, tin, etc.; the Bureau does... arranged, and spent seventeen days in visiting gold mines in Georgia and North Carolina, and some of...stars or rosettes of gold. The iron columns were painted bronze color, relieved with gold color. The capitals...MINERALOGIST. 18 dome was also richly decorated in gold, blue, red, green, and maroon. colors were selected...there were inscriptions and quotations in letters of gold. The Exposition was opened May 1, 1862. The Duke |
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| • t --•- """"" ' The Lornex copper-molybdenum mine and plant, Highland Valley, British Columbia. (By...in specific cases such as mine levels when measured in feet, values of gold and silver in troy ounces...winter torrents brought down gravels containing gold, which the barbarians passed through inclined troughs...fleeces to catch the gold. The fleeces that were hung on trees to dry, so that the fine gold could be beaten...Euxine. This is the earliest record of a placer gold rush and a poetic expression of an early mining |
