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| MENDENHALL, Director CIRCULAR 10 THE McCOY MINING DISTRICT AND GOLD VEINS IN HORSE CANYON LANDER COUNTY...MENDENHALL, Director CIRCULAR 10 THE McCOY MINING DISTRICT AND GOLD VEINS IN HORSE CANYON LANDER COUNTY...1934 F'7V6 Contents Page The McCoy mining district Introduction Location and topography Geology Sedimentary...12 13 Illustrations Figure 1. View of McCoy district, showing mines, Fish Creek Mountains, and topography... 87266 The McCoy mining district, Lander County, Nevada By F. C. Schra,der . Introduction The following |
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| ILLUSTRATIONS PLATE 11. Geologic map of Willow Creek district._______-_----__-__-_ 12. A, Chalcopyrite-molybdenite...pegmatite dike on Holland property, on eastern valley wall of upper Purches Creek_____________________...the Geological Survey, but funds to carry through an extensive inquiry of this sort had not been available...Kantishna district, Mount Eielson, formerly known as Copper Mountain, and the head of West Fork of Chulitna...Fairbanks; C, Willow Creek; D, Mount Eielson; E, West Fork of Chulitna River; F, Eureka and vicinity; |
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| Professional Paper 194 THE GOLD QUARTZ VEINS . OF GRASS VALLEY, CALIFORNIA BY W. D. JOHNSTON, JR. UNITED STATES...Mineralogy ___________________________________ _ Ankerite __________________________________ _ Arsenic ...treatment_______________________________ Veins on the west side of the granodiorite area_____ Gold Hill, Massachusetts...71 72 72 72 72 73 Mines-Continued. Veins on the west side of the granodiorite area-Con. North Star mine-Continued...2. 3. 4. 5. 6. 7. 8. Geologic map of the Grass Valley quadrangle __________________________________ _ |
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| frank to return It DEPARTMENT OF THE INTERIOR noy O. West. Secretary U. S. GEOLOGICAL SURVEY GeOl"ge Otis..._ _ _ _ ___l DEPARTMENT OF THE INTERIOR Roy O. West, Secretary U. S. GEOLOGICAL SURVEY George Otis Smith...____________ Previous geologic studies of the district- _ _ ________________________________________..._________________ Geology of the lower western slope of the Sierra Nevada___________________________...slate, Plymouth mine_ _ _ _ _ _ _ __ _ _ _ 7. A, Ankerite metasome iJ? slate, .ordinary light; B, Same as |
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| districts.____-_--_-----_____-______---_ Bohemia district.._i_-_-__--_---_-_--_---___-______-_____---_--...areas and mining districts Continued. Bohemia district Continued. Mineral deposits._________________...areas and mining districts Continued. Bohemia district Continued. Mines and prospects Continued. Tall...___-_-___.-______-_-_____.__________._ Quartzville district..______-_----._______-_____-.-________-_-Location...areas and mining districts Continued. Quartzville district Continued. Mines and prospects Continued. Lawler |
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| Ophir district.________________________________________________ Scratchgravel Hills and Grass Valley......__________---__--_-___ Austin district._.____..._..._._.____._____.____.___-.___._____ Marysville district.___________...___________________________________________ Gould district._______________________________________________ Stemple...._ Heddleston district.___________________________________________ Wolf Creek district.._..........__..._---_________ Helena district.____________________________.__ Winston district-______________________________________ |
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| MINING JOURNAL TRANSLATOR'S PREFACE. In presenting an English edition of Professor Beck's 'Lehre von den...the publishers to practically rewrite the book from an American standpoint, giving greater . prominence...advisable. For such additions and changes I alone am re- sponsible. , A slight abridgment of the...table of contents and index will, lar metal. am under deep obligation to Mr. Eobert Stein, of the...AUFLAGE Als die Vortrage iiber Lagerstattenlehre an der Kb'niglichen Bergakademie zu Freiberg mir iibertragen |
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| Arrens Zn (Pb), Ba Devonian deposit, Pyr6n6es, France: an exhalative-sedimentary-type deposit similar to Meggen...64000 Pau, France The Perrefitte anticlinorium district in the Paleozo[c province of the Pyrenees contains...reconstructed. However, the deposit is very likely located in an unstable shelf zone. Lithology underwent many changes...continuing the Pierrefitte anticlinorium to the west (Fig. 1). The anticlinorium contains the formerly...deeply rooted in the steep western slope of the Arrens brook, an area where only minor mining exploration |
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| _________--____-_---_-------___-_--------_----_______ Ajo district.-_--_.____---------______--_-_--__---_______ Oatman...____________________________________________________ 11 Austria._____________________________________________________...______--__-__---_____----_____-__-___-___________ Bonanza district._________________________________________ Breckenridge...region___________________________________________ Spanish Peaks district.____________________________________ Summitville...________________________________________ Edwardsburg district._____________________________________ 11 11 12 |
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| others on any subject, uncreative though it may be, is an essential step in any orderly research. In this instance...mention. This compilation has been in progress as an avocation at intervalssome of them very long-since...galena that had been recently found in the Tenmile district, Summit County. In his booklet, which today would...of references at the end of the volume will give an idea of the enormous mass of available knowledge...primary sulfides became prominent, together with an increasing knowledge of the nonmetallic gangue minerals |
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| upon an investigation made for the purpose of obtaining from the Payson region, or Green Valley mining...mining district, geological data. that might be of interest to mining men, prospectors, and investors. These...Payson, for early historical information upon the district. To Mr. Arthur Boozer, Manager of the Atlantis...electrical power is ever needed' in the PaysOh" district; it could probably be obtained from the Fossil-Creek...PAYSON, ARIZONA GEOLOGIC MAP OF THE: PAYSON DISTRICT, ~ Scale? ARIZ. TMi les 19~4. Quaternar~ |
 | Sheridan, Douglas M., Maxwell, Charles Henry, Albee, Arden Leroy, Van Horn, Richard (1967) Geology and uranium deposits of the Ralston Buttes district, Jefferson County, Colorado, with sections on Paleozoic and younger sedimentary rocks. Professional Paper 520. US Geological Survey doi:10.3133/pp520 | Report (issue) |
| Geology and U raniurn Deposits of the Ralston Buttes District Jefferson County, Colorado By DOUGLAS M. SHERIDAN...uranium veins on the of the Front Range west of Denver district flank of the geology of a east UNITED...___________________________________ _ Rocks of the district ____________________________ --· __ Precn.mbrian...43 43 43 44 45 45 47 49 50 Page Rocks of the district-Continued Laramide intrusive rocks _______________________...(1-3, 6, 8 include sections): 1. Ralston Buttes district. 2. Schwartzwalder mine area. 3. Upper level and |
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| Rare-Earth Mineral Deposits of the Mountain Pass District San Bernardino County California GEOLOGICAL SURVEY... Rare-Earth Mineral Deposits of the Mountain Pass District San Bernardino County California By J. C. OLSON...PROFESSIONAL PAPER 261 A geologic study of the district and its rare-earth-bear ing carbonate rocks. One...the western slope the Sierra Nevada. In 1854 lead ore was found in the Yellow Pine district (Potosi area)...area) on the west slope of the Spring Mountains in southern Nevada. In the early sixties, prospectors began |
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| deposits of the Takilma-Waldo district, Oreg., including the Blue Creek district, by Philip J. Shenon________...Topographic and geologic map of the Mormon Basin mining district, Baker and Malheur Counties, Oreg _ 32 3. Geologic...Co., East Eagle district, Oreg _ 72 4. Topographic and geologic map of Virtue district, Baker County,...map of mill-tunnel level of Virtue mine, Virtue district, Oreg__________________________________ 72 6....Composite plan and section of Flagstaff mine, Virtue district, Oreg___________________________ __ '72 7. Map |
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| Geologic map and sections of the Swain County copper district, North Carolina. 2. Geologic map of the Fontana...mainly chalcocite and pyrite. The Fontana ore body has an elongate podlike shape and plunges about 45°, deviating...The deposit is about 450 feet in strike length, has an average thickness of about 10 feet and has been followed...'I'he ore was shipped without beneficiation and had an average grade of about 7 percent copper and 2 percent...of Ducktown, Tenn., the major copper-producing district in the region. The main purpose of the investigation |
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| ^ '“ P r . . . I West Orange SOUTH SAN FRANCISCO PUBLIC LIBRARY 9048 00992838 7 257989 R q549...Published by Van Nostrand Reinhold Company Inc. 135 West 50th Street, New York, N.Y. 10020 Van Nostrand...Pemberton, H. Earl, 1907Minerals of California. An updating of: Minerals of California: 1866-1966 /...Berkeley, prepared as a report Board of Agriculture an “Annotated Catalog of the to the State Principal...CASCADE RANGE HI MODOC PLATEAU COAST RANGES S GREAT VALLEY SI SIERRA NEVADA 21 BASIN RANGES 3Zm MOJAVE DESERT |
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| omitted from locality information. Where lot and district numbers are given, it is necessary to use topographic...Reviews and suggestions by Thomas J . Crawford (West Georgia College) and Robert B . Cook (Auburn University)...the photographs. Baldwin County Milledgeville district—between the State Sanitarium and the Oconee River:...property—near Commerce: ferrocolumbite (Cook, 1978). Lula district—Standridge property, about 7.0 km east of Lula:...(chryso lite, olivine) (Teague, 1956). Jefferson district—9.7 km southwest of Jefferson on S.R. 11, northwest |
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| of some mines on the north side of Howard Fork valley. 22. Geologic map of eighth and fifth levels, Alta...OF TELLURIDE, COLORADO By JOHN S. VHAY ABSTRACT An area between Telluride and Ophir that has had considerable...Melting of the frozen matrix of the extensive talus is an important factor in the formation of several types... As this area is on the west flank of the great San Juan volcanic pile, west of the Silverton caldera...Burns latite. The Potosi volcanic series consists of an alternation of quartz latite "flows," and rhyolite |
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| Published by Van Nostrand Reinhold Company Inc. L35 West 50th Street, New York, N.Y. 10020 Van Nostrand Reinhold...Data Pemberton, H. Earl, 1907Minerals of California. An updating of: Minerals of California: centennial volume...prepared as a report to the State Board of Agriculture an "Annotated Catalog of the Principal Mineral Species... • ID MOOOC PLATEAU I7 COAST RANGES 7 GREAT VALLEY :2f SIERRA NEVADA ~ BASIN RANGES Ell MOJAVE...dominant ma.fie mineral; adj. noritic. oxidized zone An area of mineral deposits modified by surface waters |
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| of environmental concerns by society were nearing an intensity bordering on frenzy. Geology, hydrology...which they can be identified. His has been more than an assignment of work. Like all good science, it has...professional competence, but also the air of the work of an amateur in the true Greek sense of the word. It is...probes the earth. Whenever a quarry is opened or an old one deepened, a ledge of stone blasted, a test................................................ Ankerite.............................................. |
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| Bariand Paris, France Werner Lieber Heidelberg, West Germany Olaf Medenbach Bochum, Germany Eric Offermann...F. J. Parker Tveitite from the Barringer Hill District, Texas..................................387 byW...b. Location c. Your name and mailing address d. “ AM” (for “ Amateur” ) if you have never been paid for...slide competition. e. “PRO” if you do not qualify as an amateur as defined above. 2. Maximum of two entries...All slides received which are not indicated by “ AM” will be placed in the professional category. From |
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| Cliff; and Clinton for the mines of the Clinton district. Many of the mining camps may be reached also...Felan and Tenmile creeks, a part of the Clinton district, and a few tracts elsewhere were examined by E...have hitherto been published. SUMMARY. Bear Creek, an affluent of Clark Fork east of Missoula, was a large...northwestern part of Garnet Range and Dunkleberg mining district, Mont. the value of $5,000,000 or more was washed...lodes in neighboring areas, mainly in the Clinton district. The gold-bearing veins at Garnet and vicinity |
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| carbonate spars free from cobaltiferous ores, especially an 8-meter (25-ft.) vein at the diorite contact, worked...mica. The iron deposits of Dobschau still yield an annual production of about 35,000 tons, but the cobalt...' This Kupferschiefer is cases. lean in this district, carrying only 1.4% of copper, and no silver,...fissures known as 'rucken' in the Mansfeld copper district also contain occasional nickelite, together with...ORE DEPOSITS. 343 1 . They carry siderite, ankerite and quartz as a nickel pyrite and bismuth glance |
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| lackof changein totaliron escapes attention. In an effortto findoutwhathashappened in specific instances...often thannot accompanied by a reductionin density,an adjustment,if it couldhave beenmade in caseswhere...Mine. * Numbers in parenthesesfollowing name of district refer to "References" at the end of the 744...Ferromagnesians chloritized. 3. Chuquicamata porphyry (an albitized rock with orthoclase phenocrysts (porphyroblasts...5. Same adjoining Ophir vein'. 8. Yellowknife District, Northwest Territories, Canada (2) Samples were |
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| GEOLOGY AND ORE DEPOSITS OF THE BRECKENRIDGE MINING DISTRICT, COLORADO BY T. S. LOVERING UNITED STATES GOVERNMENT..._ Criteria of enrichment in the Breckenriclge district......__._.._-._-..._.__.___-_._ Enrichment of...Page PLATE 1. Map of part of the Breckenridge district, Colorado, showing some of the principal mine...pocket 2. Geologic map of part of the Breckenridge district._____-__--__--_---_____________--_--------_____-__...Correlation of formations in the Breckenridge district.-,.---__-_-__-------__-____-------__----___------10 |
