 | | Report (volume) | | Iron-Ore Deposits of the Iron Mountain District, Washington County, Idaho By J. HOOVER MACKIN A CONTRIBUTION...GEOLOGY BULLETIN 982-E A description of the iron-ore reserves of the district UNITED STATES GOVERNMENT...______________________ 139 Mortimer magnetite deposit.___________________________________ 141 Standard...the Campbell magnetite deposit. 15. Geologic map of the Mortimer magnetite deposit. 16. Geologic map of...Standard specularite deposit. 17. Geologic map of the Abundance red-hematite deposit. 18. Geologic map of |  | | Report (issue) | | Reports on IRON ORE DEPOSITS OF THE IRON MOUNTAIN DISTRICT Washington County, Idaho and IRON ORE DEPOSITS IN...Mackin OPEN FILE 47-14 Washington 1947 IRON ORE DEPOSITS OF THE IRON MOUNTAIN DISTRICT, Washington...5 Andesite porphyry « 5 Sheared conglomerate* 5 Basalt* ......................... 5 Origin of the Iron...Campbell Magnetite Deposit* ». « ^ » > 7 Geology ................ .......... 7 Description of ore occurences...Estimates ^ , *10 The Standard Specular Hematite Deposit* ». «. 10 Geology ......,.*. « 10 Description of |  | | Report (issue) | | --------Eruptive rocks of Mount Taylor _____________ _ Basalt flows _______________________ -----_--Volcanic...----East- to northeast-trending folds _______ -North-trending folds ________ ------------Intraformational...ackpile deposit._- __ -_-_- ___ ----------Windwhip deposit.--------------------Woodrow deposit ___ --...-------------------Pit I deposit, Sandy mine ____ -------·----Summary of minor-element data _________ _...- - - -- ----- - Ore textures _____ ----------~-----:..------------J ackpile deposit.--_-----------------------Woodrow |  | | Report (volume) | | Gonglomerate. _ ___________ _______________-_--.----____ Basalt.-.. _._--. -_._---_---.--..-----..--.-----.._.-_...-------_--._--._-.__-_..-.._.--_.--..--------.-._.. Ore deposits.-__-__-__-___-__--_-_-__-_____________-__-_-_____...L................. ____________________________ Ore bodies--------------!-- -----------------------------Reserves__..."________________________ North Nonpareil mine..-..---.---.--,_ __-------__-_--Ore bodies:'---__-_'_-_--...through ore bodies, Bonanza mine_ _ _ _ _ In pocket 34. Longitudinal section, north ore body, Bonanza |  | | Report (issue) | | Rocks-Part I Gold in the United Verde Massive Sulfide Deposit, Jerome, Arizona By ED DEWITI and JEROME WAEGLI...pt. 1. Gold in the United Verde massive sulfide deposit, Jerome, Arizona I by Ed DeWitt and Jerome Waegli... CONTENTS Gold in the United Verde massive sulfide deposit, Jerome, Arizona Abstract Dl Introduction Dl History...structure and age of metamorphism and deformation Ore deposits DlO Structure DlO Wallrock alteration Dll...Conclusions D20 Distinguishing characteristics D20 Ore controls D21 Origin D22 References cited D23 D9 |  | | Report (issue) | | COM PUTING ORE RESERVES, UTILIZING ANA LYTICAL DATA FROM MAGGIE CANYON MANGANESE DEPOSIT, ARTILLERY MOUN...OF COMPUTING ORE RE SERVES, UTILIZING ANALYTICAL DATA FROM MAGGIE CANYON MANGANESE DEPOSIT, ARTIL LERY...Discussion of sample data — 5 Part I. — Computation of ore reserves and grade. 8 Cross-section method 8 Computations...frequency distribu tions 24 Computation of grade of ore by use of Sichel's t estimator 29 Underground drill...Appendix II. Section maps, Maggie Canyon manganese deposit, Mohave County, Ariz. (figs. 12-33) - 112 Appendix |  | | Report (issue) | | Geology and Ore Deposits of the Jerome Area Yavapai County Arizona By C. A. ANDERSON and S. C. CREASEY...Ash Creek group _______________________ _ Gaddes basalt _____________________ _ Buzzard rhyolite ___________________...Physiography _______________ ---·- -------- ______ _ Ore deposits ________________ :. . ___ ~ __ ,.. ______...Hypogene minerals ________ ._____ :.. ___________ _ Ore minerals:... ________________ ~ ________ _ Gangue... Supergene minerals ________________________ _ .Ore minerals ___________ :. . ________ ~ _____ _ .Minerals |  | | Journal (article/letter/editorial) | | of the primary fluidsthat presumablyintroducedthe ore metalsto the volcanicrocks accumulating on the seafloor...massivesulfidedepositsat Jerome,Arizona tension(U.V.X.) ore body, discoveredin 1914 and (Fig. 1) consist largelyof...Verde Extension are now inaccessible, but small ore shoots in the southwestern wall of the openpit...edto supportthe conceptthat in 1953. Another deposit,the Haynes massive manymassivesulfidedepositshavea...more obvious,a seven formations. The Gaddes Basalt at the base consistslargely of pillow lavasand |  | | Book | | (Austria), J. Komínek (Czech Republic), I. Bojkov (Bulgaria), H. Schleicher (Germany), W. Schuppan (Germany)...use of nuclear energy is information on uranium ore deposits from which uranium can be economically exploited...of other geoscientists who worked on any given deposit, in order to stimulate and encourage further research.... . . . . . . . . . 19 19 23 25 Chapter 2 Bulgaria . . . . . . . . . . . . . . . . . . . . . . ....120 123 127 127 128 x Table of Contents 3.8 North-Bohemian Cretaceous Basin . . . . . . . . . . . |  | | Report (issue) | | REPORT ON '. , - THE MOLALLA HIGH-ALUMINA CLAY DEPOSIT MOLALLA, CLACKAI^IAS COUN1Y, OREGON Robert I/;"... HffiLIMINAHY-fiiEFbRT ON THE MOLALLA HIGH-ALUMINA CLAY DEPOSIT NEAR MOLALLA , CLACKAMAS COUNTY, OREGON " by ..._' .,_. . v 6 " '_._ ^ , x ^ : ":; 7 J, , 8 ' , Ore Deposits . . , ,'- »,.. .--,..-, v:';;'.; . : ";...;;':';'';'-:;" .'5-;:; ;-'" -^-.v'.. ,14r, ..'.- '.. Ore Bodies . - - - ; ' :"-. - : " ;. ' ,-."": r '- '...;;1'^;i'7H Area, Volume,' Weight, and Grade of the Ore ^dy ; , ^ 10-; ^ 18 J Volume and Weight of .Overburden |  | | Book | | OF THE PORPHYRY COPPER DEPOSITS Southwestern North America oe ‘ ” MohBy yy a i; ¢ ¢ ¢ GEOLOGY...OF THE PORPHYRY COPPER DEPOSITS Southwestern North America Edited by SINCE RoR EEL LEY. Department...tectonics of basin ranges, and structural control of ore deposits. Much of his early work was of a truly pioneering...later Tertiary tectonics in the Basin and Range Province, and work on a number of individual mining districts...FOREWORD Recent discoveries of new copper-bearing ore deposits in the southwestern United States are unmatched |  | | Book | | post-orogenic and intraplate settings. The mineral deposit studies in Mongolia began in the middle of the...and Cretaceous age. The Tavan Tolgoi deposit is a unique deposit of cooking coal of about 5 billion tonnes...He has considerable experience in tectonics, ore deposit geology, and mineral exploration in many parts...Natural History Museum, London, and Editor-in-Chief of Ore Geology Reviews. Franco is the author of 5 books...the International Association on the Genesis of Ore Deposits (IAGOD). Her areas of expertise include |  | | Journal (article/letter/editorial) | | the Sierra Nevada, presentan interestingproblem in ore. genesis. Several writers have ascribed an igneous...dealt primarily •vith the microscopicfeatures of the ore. The present writers by mappingin detailthea'reasurrounding...and this paperpresentstheseresults. In short, the ore bodieshavebeenlocalizedby roof-pendantsof hornfelsed...the main ore body of the Engelsmine is that by Turner and Rogers, • who.interpretedthe ore as of direct...Rogers on the microscopic evidence. They describedthe ore minerals, chalcopyriteand bornitc,as occurring' |  | | Report (volume) | | GEORGE OTIS SMITH, DIRECTOR BULLETIN 432 SOME ORE DEPOSITS IN MAINE AND THE MILAN MINE, NEW HAMPSHIRE................................................. North Haven greenstone................................................................................. Ore deposits........................................... 4 CONTENTS. Ore deposits Continued. Page. Summary of geologic events as related to ore deposits ........... Minerals of the ore................................................. Ore bodies............... |  | | Report (volume) | | Structure............................................ Ore deposits...........................................rocks of probable late Jurassic age. Most of the ore bodies are small and are of relatively low grade...permits mining at low cost. Although the known larger ore bodies are apparently nearly exhausted, numerous...tons of probable ore containing 0.25 to 0.5 percent of WOs in reserve. Additional ore bodies may be found...found at depth in the Round Valley deposit, for that pendant is large and persistent. INTRODUCTION The |  | | Report (issue) | | Lindgren toward the application of detailed ore deposit studies to the exploration for new mines. Our...has in part turned away from the path of applied ore deposition blazed by these men. However, the continued...is up to us to combine their concepts of applied ore deposition with the new techniques of geochemistry...the first of two majbr phases in his studies of ore deposits. He continued this phase of detailed field...studies with work on the vein, manto and pipe types of ore deposits in Mexico from 1922 to 1926, in southern |  | | Report (issue) | | evaluating mineral occurrences in North and South America, Europe, North Africa and the Middle East. As... . . . . . . .. . . .... . . . . . . . 75 L&N Deposit . ... . .... .. . . ..... . . . . . . . . 78 Acknowledgements... ... 6 4 . View east from Alunite Ridge across North Fork of Cottonwood Creek ... ..... . . . . . . ...along outcrops of antimony-bearing sandstone showing ore concentrations in Stella and Mammoth claims . . ...Bradburn alunite mine . . . . . . . . . . . 75 45. North portion of Alunite Ridge from L&N mine ..... 75 |  | Van Alstine, R. E., Worl, R.G., Heyl, A.V., Trace, R.D., Parker, R.L., Griffitts, W.R., Sainsbury, C.L., Cathcart, J.B. (1976) Geology and resources of fluorine in the United States. Professional Paper 933. US Geological Survey doi:10.3133/pp933 | Report (issue) | | A sbestos ore Lead ore, Balmat mine, N . Y. Chromite-chromium ore, Washington Zinc ore, Friedensville...Ribbon asbestos ore, Quebec, Canada 7. Manganese ore, banded rhodochrosite 8 . Aluminum ore, bau x ite,...copper ore, Kew ee nawan Peninsula, Mich. 10. Porphyry molybdenum ore, Colorado 11 . Zinc ore, Edwards...13. Botryoidal fluorite ore, Poncha Springs, Colo . 14. Tungsten ore, North Carolina Geology and Resources...................................... . Fluorspar ore deposits ....................................... |  | Duuring, Paul, Rowins, Stephen M., McKinley, Bradley S. M., Dickinson, Jenni M., Diakow, Larry J., Kim, Young-Seog, Creaser, Robert A. (2009) Examining potential genetic links between Jurassic porphyry Cu–Au ± Mo and epithermal Au ± Ag mineralization in the Toodoggone district of North-Central British Columbia, Canada. Mineralium Deposita, 44 (4) 463-496 doi:10.1007/s00126-008-0228-9 | Journal (article/letter/editorial) | | Au±Ag mineralization in the Toodoggone district of North-Central British Columbia, Canada Paul Duuring &...volcanic-arc granites. The Fin porphyry Cu–Au–Mo deposit is anomalous in that it is 16 m.y. older than any...systems, the Baker low-sulfidation epithermal deposit displays the strongest demonstrable genetic link...fluids; fluid inclusion studies demonstrate that its ore fluids were hot (>468°C), saline, and deposited metals...involvement of a magmatic fluid, but also suggest that the ore fluid interacted with Asitka and Takla Group country |  | Chi, G., Li, Z., Chu, H., Bethune, K. M., Quirt, D. H., Ledru, P., Normand, C., Card, C., Bosman, S., Davis, W. J., Potter, E. G. (2018) A SHALLOW-BURIAL MINERALIZATION MODEL FOR THE UNCONFORMITY-RELATED URANIUM DEPOSITS IN THE ATHABASCA BASIN. Economic Geology, 113 (5) 1209-1217 doi:10.5382/econgeo.2018.4588 | Journal (article/letter/editorial) | | (~35°C/km). Based on regional geochronostratigraphic and ore geochronological data, it is inferred that, at the...dating) from the Maw zone rare earth element (REE) deposit, interpreted to be coeval with U mineralization...Manitou Falls Smart / Read Basement (>1710 Ma) U deposit n co Un ity m r fo Thermal source 0.5 km...et al., 1984) Cl uff Lake (Bell, 1985) Ar/Ar syn-ore illite age McArthur River (Cumming and Krstic, 1992)...(Mercadier et al., 2012) support derivation of the ore-forming fluids from evaporitic seawater. The majority |  | | Report (volume) | | Geologic relations_____________________________ 18 Ore deposits __________________ _____ _ 20 General c...relations of the deposits______________________ Ore deposits ____ ___________ _ _____ The ores_______...39 40 41 42 42 42 42 42 43 44 45 ___ !___ 45 Ore deposits________________ _ ^_____ Character and relations___..._____ Geologic relations____________._____________ Ore deposit______ ________:______ _______ Development...Amphibolite dike_______________________________ 126 North Carolina____________________________________ 127 |  | | Report (issue) | | Geological Survey editorial standards or with the North America Stratigraphic Code. Any use of trade, product.................................................3 Ore Deposits....................................................................................8 North ore body..................................................................................10 Middle ore body................................................................................. 10 Southeast ore body.............................................. |  | | Report (issue) | | COUNTRIES Austria • • • • • • • • • • • • Belgium • • Bulgaria . • Cze.ch()slovakia • • • • • • • • ...• • • • China • • • • • Japan • • • • • Korea (North and South) • Laos • • • • • Nepal • • • • • Persia...output . ,, 35 Fig. 6 World production of cobalt-ore (cobalt content) PLATE I PLATE II 1898-1957 Fig...half of the eighteenth century., the use of the ore goes back in all probability to over 2000 years B... The first mention of zajfre, the crude roasted ore mixed with sand to conceal its nature, was in A.O |  | | Report (issue) | | County, Arizona By S. C. CREASEY With a section on ORE DEPOSITS By J. D. PELLETIER and S. C. CREASEY GEOLOGICAL... and origin of the San Manuel porphyry copper deposit and on the distribution, petrology, and structures...Manuel area, Final County, Arizona. With a section on Ore deposits by J. D. Pelletier and S. C. Creasey. Washington...Mines and mineral resources Arizona Final Co. 3. Ore deposits Arizona Final Co. I. Pelletier, J. D. II...Structures in the San Manuel area._______________ Ore deposits, by J. D. Pelletier and S. C. Creasey_______ |  | | Journal (article/letter/editorial) | | SOME REGIONALLY POSITS AND METAMORPHOSED ORE THE SO-CALLED SEGRE- GATED W•LL•AM DE- VEINS? H. EMMONS...I9O9 the writer studiedin detail certain pyritic ore bodiesin Maine and New Hampshire which proved to... regionally metamorphosed contact metamorphic deposit. These depositsof northernNew England are typesof...point of view. Among the commontypes of primary ore depositswe have the magmatic segregations,contact...chloritebiotite schists and actinolite schists; the ore bodies are oriented parallel or nearly parallel |
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