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| Antoniu, Antoniu North, and Blidar Contact orebodies from the Băit, a-Bihor skarn deposit, Romania have...Băit, a-Bihor deposit; the occurrence of stannite was also confirmed. Temperatures of ore deposition in...microanalysis; Băit, a-Bihor skarn deposit 1. Introduction The Băit, a-Bihor ore deposit is located in the northwestern...Negru river, 3.5 km ENE of Băit, a village. This deposit together with the Fe skarn deposits at Băis, oara...Cacova) and the Valea Lita Pb-Zn-Cu vein deposit are the northernmost ore occurrences in the Banatitic Magmatic |
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| (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 . . . . . . . . . . . |
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| oxide–Cu– Au (IOCG) deposits encompass a range of ore body shapes, including strata-bound replacement ores...world-class, Ernest Henry breccia-hosted IOCG deposit. Cu– Au mineralization in the E1 Group occurs as...and fluid pressure may explain the variation in ore body types and total Cu–Au resource between the two...G. & Sorjonen-Ward, P. (eds) Characterization of Ore-Forming Systems from Geological, Geochemical and...reveals some similar structural settings for IOCGstyle ore bodies. These settings include hydrothermal breccias |
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| state highway 110, which is followed 3,5 miles north of the Berlin-Milan town line; thence by Fogg siding...ownership. According to Emmons , the deposit was _ Emmons, W.H., Some ore deposits in Maine and the Milan...until 1886, The monthly production was 2,600 tons. ore was smelted at the mine. At this time a little of...a number of companies. During this period, the deposit was worked primarily for pyrite to be used in the...the manufacture of sulfuric acid ; however, ore rich in copper was hand-picked and shipped to copper |
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| massivesulfidedeposits at Jerome,consisting largelyof pyrite,chalcopyrite, and sphalerite,are concordant stratabound lensesin...olderfoldswere deformed alongverticalaxes,and someof the chalcopyrite in the major lensmigrated downwardto form shootsof...of the primary fluidsthat presumablyintroducedthe ore metalsto the volcanicrocks accumulating on the seafloor...tension(U.V.X.) ore body, discoveredin 1914 and (Fig. 1) consist largelyof pyrite,chalcopyrite, and mineduntil...Verde Extension are now inaccessible, but small ore shoots in the southwestern wall of the openpit |
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| Ores from the Takara Volcanogenic Massive Sulfide Deposit, Central Japan Daigoro YAKUSHI and Mamoru ENJOJI...The Takara volcanogenic massive sulfide (VMS) deposit occurs in Miocene formation of the Misaka Mountain...Honshu arc and to form accreted body in the present position. The Takara deposit, therefore, is considered...Takara deposit are classified into pyrite-type ore, chalcopyrite-type ore, and sphalerite-type ore on the...recognized in the chalcopyrite-type and sphalerite-type ores. The ores from the Takara deposit have intermediate |
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| 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 |
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| 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_______ |
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| 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............... |
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| 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 |
 | Brueckner, Stefanie M., Piercey, Stephen J., Layne, Graham D., Piercey, Glenn, Sylvester, Paul J. (2015) Variations of sulphur isotope signatures in sulphides from the metamorphosed Ming Cu(−Au) volcanogenic massive sulphide deposit, Newfoundland Appalachians, Canada. Mineralium Deposita, 50 (5) 619-640 doi:10.1007/s00126-014-0567-7 | Journal (article/letter/editorial) |
| metamorphosed Ming Cu(−Au) volcanogenic massive sulphide deposit, Newfoundland Appalachians, Canada Stefanie M....Ming deposit is an early Ordovician, bimodalmafic Cu–Au volcanogenic massive sulphide (VMS) deposit in...Silurian and Devonian. The Ming deposit consists of several spatially proximal ore bodies of which the 1806...focus of this paper. The ore bodies have similar stratigraphic sequences. The ore bodies can be divided...the semimassive to massive sulphides and (b) chalcopyrite–pyrrhotite–pyrite stringers distally from semi-massive |
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| 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 |
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| Geology and Ore Deposits of the Jerome Area Yavapai County Arizona By C. A. ANDERSON and S. C. CREASEY...Physiography _______________ ---·- -------- ______ _ Ore deposits ________________ :. . ___ ~ __ ,.. ______...Hypogene minerals ________ ._____ :.. ___________ _ Ore minerals:... ________________ ~ ________ _ Gangue... Supergene minerals ________________________ _ .Ore minerals ___________ :. . ________ ~ _____ _ .Minerals...Alteration _______ -_·:. . :. . ____________ --'----Ore shoots _______-__ ._ ____ .:. ___ __________ _ Origin_~-· |
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| 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 |
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| 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... and the ores consistchiefly of bornitc and chalcopyrite with contemporaneous magnetiteand ilmenitein...the main ore body of the Engelsmine is that by Turner and Rogers, • who.interpretedthe ore as of direct |
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| time be considered as potential sources of iron ore. 201 202 CONTRIBUTIONS TO ECONOMIC GEOLOGY INTRODUCTION...sedimentary rocks of Paleozoic age (the Ridge and Valley province). Within the area of pre-Cambrian rocks are several...tite-quartz-feldspar gneiss is a low-grade iron ore. The following table gives the modal composition...products 1.2 1. Cummins mine area. 2. Highway 206, north of Flanders. 3. Cummins mine area. 4. Cummins mine...with the structure of the enclosing rocks. Some ore bodies have definite shoot structure and are lath |
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| 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 |
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| 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 |
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| 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...Campbell Magnetite Deposit* ». « ^ » > 7 Geology ................ .......... 7 Description of ore occurences...Estimates ^ , *10 The Standard Specular Hematite Deposit* ». «. 10 Geology ......,.*. « 10 Description of...Mortimer Magnetite Deposit* 16 Geology .........................16 Description of ore occurrences-Tonnage |
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| with the intrusivebody from which it is believedthe ore solutionswere derived,the spreadin ratio valuesis...depositsmight be subdividedaccordingto different ore fluid sources,or, at least, accordingto what may...necessarilymagmatic in origin. It is believedthat most studentsof ore genesiswould not restrict the term to this sole source...suggestsomehypotheses for consideration by the students of ore genesis. Duringthe past,hopefulattemptshavebeenmadeto...analyzed. In contrast,specimens from somehydrothermal ore deposits didnotvaryin S8•/S• ratiovaluesor if so |
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| The Ore Knob Copper Deposit North Carolina, and Other Massive Sulfide Deposits of the Appalachians GEOLOGICAL...SURVEY PROFESSIONAL PAPER 558 The Ore Knob Copper Deposit North Carolina, and Other Massive Sulfide...dynamic and thermal metamorphism on primary ore textures at Ore Knob are described^ and similar Appalachian...___________________________ Geology of the Ore Knob mine____________ Ore Knob mineral deposit_______________...____________________ Changes in wallrock along the ore zone. Brecciation. ____________________ Folding and |
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| 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.............................................. |
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| ..... Deposits north of the Pine Creek area................ Round Valley Peak deposit..................Photograph showing the Pine Creek pendant on the north side of Pine Creek, Inyo County, Calif...'........Valley Peak deposit.. .................................... 8. Geologic map of Hilton Creek deposit..........REPORT By Dwlght M. Lemmon ABSTRACT Scheelite ore bodies occur at widely separated localities in the...exposed in deep canyons indicates that some of the ore bodies may extend to many hundreds or even to thousands |
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| Smith, Director Professional Paper 139 GEOLOGY AND ORE DEPOSITS OF THE DUCKTOWN MINING DISTRICT, TENNESSEE...______________________________ _ CHAPTER V. The ore deposits, by W. H. Emmons ____ _ Geographic distribution...ral character of the primary ore ________ _ Minerals of the primary ore ________________ _ Actinolite...V. The ore deposits-Continued. Mineralogy of the ores-Continued. Minerals of the primary ore-Continued...___________ _ CHAPTER V. The ore deposits-Continued. Structural features of the ore bodies-Continued. Page |
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| a basis ranging from 150,000 to 200,000 tons of ore a month, whereas the rated capacity of the mill is...000 tons a day. About 460 men were employed. The ore is being taken chiefly from levels 8, 9, 10, and...during the last three years. The average cost of ore delivered to the mill over a period of four years...will probably amount to 80 per cent of the cost of ore production. Data on the production of the Perseverance...have been the introduction of hand picking of the ore as it comes from the 1 Jackson, G. T., Mining methods |
