 | | Report (issue) | | Geology of the Sierra Blanca Area Hudspeth County Texas GEOLOGICAL SURVEY PROFESSIONAL PAPER 479 Geology... Geology of the Sierra Blanca Area Hudspeth County Texas By CLAUDE C. ALBRITTON, JR., and J. FRED SMITH...______________ Leonard Series (undivided) of Finlay Mountains. Stratigraphic section.___________________ Fossils...between Permian rocks in the Finlay and Malone Mountains areas..-__________.. Conditions of deposition...Finlay Mountains______________________ Malone Mountains.____________________ Jurassic System ________ |  | | Report (issue) | | revised ages of volcanic units in the San Juan Mountains, Colorado: Recalculated K-Ar age determinations...Generalized volcanic stratigraphy of the San Juan Mountains, Colorado.................................3 Table...from Tertiary volcanic units of the San Juan Mountains, Colorado..............................4 Appendices...Geological Survey), F. W. McDowel1 (University of Texas), J. D. Obradovich (U.S. Geological Survey), and...K-Ar determinations on rocks from the San Juan Mountains have been reported by Mehnert and others (1979) |  | | Book (volume) | | Fourche and Cheyenne rivers. These pine covered mountains, higher than the Alleghenies, culminate in Harney...instance, a single Spodumene crystal from the Etta Mine near Keystone on the east side of the Mount Rushmore...beds, excavations, etc.ïŸSelenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...ïŸgray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.ïŸpetrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: ï area ridges, slopes, stream beds |  | | Journal (issue) | | typically abraded specimens youâve found in the old mine dumps. And youâve probably looked long and hard...Everyone has heard repeated warnings about entering old mine workings. But, face it, those deep, open shafts...commonality: They can be very dangerous. Each year mine rescue specialists and conventional search and rescue...Statistically, shafts are the most dangerous part of any mine; 90 percent of all accidents and entrapments in...disturbed. In the narrow confines of an underground mine, shattering timbers can be as deadly as the rock |  | | Report (issue) | | Professional Paper 169 GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO BY W. S. BURBANK WITH...composition______________ Relation to mineral deposits... ______ Bonanza latite--.__-__---_--_-_________ Distribution and...Gulch____.._____-----Sosthenes Gulch and Antoro mine __..-.-_ Vicinity of Round Mountain ____________...and prospects.__________-_____-_--_-__-___-Rawley mine-----___-_-.-_-------------------Production____________...mme_________________-_____--_-__Underground workings and mine buildings._._ Geologic features._________________________ |  | | Book | | enter must be obtained to prevent trespass. Old mine workings are dangerous and entering underground...oFtne ato aa Gem Ghd nQkTeane Uva a nes ly ia" mine Ui nrobs inesob cere ts ou ioe tok us 'aaieomolitt...exception of the rhodochrosites of the Sweet Home Mine, Alma, Colorado, which were loaned for photography...Organ Mountains Jarilla Mountains Santa Rita Area and the Central Mining District, Grant County Burro...Burro Mountains Apache No, 2 District Lake Valley Caballo Mountains Chloride District Hansonburg District |  | | Journal (article/letter/editorial) | | .......... 391 Bajadas of the Santa Catalina Mountains, Arizona [abstract and discussion] ; by C. F....and discussion] ; by C. F. Tolman, Jr. ... 394 Sericite, a low temperature hydrothermal mineral [abstract]...of the Texas Tertiary sands [abstract] ; by E. T. Dumble. 398 Pisolites at San Antonio, Texas [abstract]...the Santa Ynez Kiver district, Santa Bar bara County, California [abstract] ; by W. S. W.Kew..........Basin features. BAJADAS OF THE SANTA CATALINA MOUNTAINS, ARIZONA BY C. F. TOLM AN, JK . (Abstract) A |  | | Report (volume) | | Resources of the Providence Mountains Wilderness Study Area, San Bernardino County, California U.S. GEOLOGICAL...Resources of the Providence Mountains Wilderness Study Area, San Bernardino County, California By RICHARD...resources of the Providence Mountains Wilderness Study Area, San Bernardino County, California. U.S. Geological...resources California Providence Mountains Wilderness. 2. Providence Mountains wilderness (Calif.) I. Goldfarb...of a mineral survey of part of the Providence Mountains Wilderness Study Area (CDCA-263), California Desert |  | | Journal (article/letter/editorial) | | quartz-alunite) and low-sulfidation (adularia-sericite) types, based on their ore assemblages and associated...eugeoclinal sedimentary rocks of the Roberts Mountains and Golconda allochthons eastward over coeval...eastern limits of the Early Mississippian Roberts Mountains and Permo-Triassic Golconda allochthons, the Jurassic...continuously east from the Sierra Nevada to the Wasatch Mountains in central Utah. At any one time, magmatism generally...Shoshone Range Approx. 15.5 to 13.4 Snowstorm Mountains Bimodal basalt-rhyolite assemblage 23.4(?) to |  | | Thesis/Dissertation | | GEOLOGY OF THE EASTERN PART OF THE BONANZA VOLCANIC FIELD, SAGUACHE COUNTY, COLORADO By John D. Mayhew ...: T 1226 ABSTRACT The eastern flank of the Bonanza volcanic field in south-central Colorado was studied...this period of erosion, the Bonanza Tuff was deposited over much of the Bonanza area on a surface of relatively...and younger latite. Foilowing deposition of the Bonanza Tuff, the rocks ii i T 1226 were arched into...central portion of the dome col lapsed Bonanza. forming the Bonanza caldera. Compilation from several |  | Nuelle, L.M., Proctor, P.D., Grant, S.K. (1985) Vein formation and distribution, Ohio and Mt. Baldy districts, Marysvale, Piute County, Utah, USA. Mineralium Deposita, 20 (2) doi:10.1007/bf00204323 | Journal (article/letter/editorial) | | and Mt. Baldy districts, Marysvale, Piute County, Utah, USA L. M. Nuelle 1, p. D. Proctor 2 and S. K....vein types: 1) the boiling level accounts for bonanza precious metal deposits at shallower depths than...southwest of the small village of Marysvale, Piute County, Utah (Fig. 1). The mapped area overlaps the borders...and roughly parallel the crest of the Tushar Mountains of central Utah. The Tushar Range is a western-most...Ohio and Mt. Baldy districts, Marysvale, Piute County, Utah rocks, consisting of the Navajo and Carmel |  | | Report (issue) | | GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT SAGUACHE COUNTY COLORADO By HORACE B. PATTON 1915.... . . . . . . . . . . . . . . . . . . . . . . Bonanza latite ........ : . . . . . . . . . . . . . . .................................... 69 The Rawley mine......................................... 69 Location.................. . . . . . 69 Rock formations in mine and tunnel................... 74 Vein systems ....tunnel.......... . . . . . . . . . 86 The Antoro mine....... . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | Geosciences, Auburn University, Auburn, AL 36849, USA Department of Geology and Environmental Earth Science...Science, Miami University, Oxford, OH 45056, USA; burkeml2@miamioh.edu Correspondence: saundja@auburn.edu;...[11]in summarized topic. The discovery of the bonanza Au-Ag deposit in the mid-1980s Nevada, and the...that gold-colloid the topic. The discovery of the bonanza epithermal Sleeper Au-Ag deposit in the mid-1980s...electrum dendrites below) observed in many Tertiary bonanza epithermal ores in northern Nevada, and have been |  | | Report (volume) | | Host Rocks, Sleeper Gold-Silver Deposit, Humboldt County, Nevada Geology and Geochemistry of Tertiary...Host Rocks, Sleeper Gold-Silver Deposit, Humboldt County, Nevada By J. Thomas Nash, William C. Utterback...Trudel U.S. GEOLOGICAL SURVEY BULLETIN 2090 Rich bonanza veins and bulk mineable gold and silver deposits...host rocks, Sleeper gold-silver deposit, Humboldt County, Nevada I by J. Thomas Nash, William C. Utterback...ores-Geology-Nevada-Humboldt County. 2. Silver ores-GeologyNevada-Humboldt County. 3. Geology, Stratigraphic-Tertiary |  | | Report (issue) | | geochemistry of the Sleeper Gold-Silver Deposit, Humboldt County, Nevada an interim report By J. T. Nash , W. C.................................................. Mine geology............................................................................ High-grade (Bonanza) veins...........................................Figure 1. Location and geology setting of the Sleeper mine. Regional geology is simplified from Wilden (1964)... 3 Figure 2. Generalized geology of the Sleeper mine area and western foothills of the Slumbering Hills |  | | Report (issue) | | _________________ ___. Nevada ___________ Elko County. - ______ ... _ Star mine, Harrison Pass _____ ____ Pag« 59...63 Good Hope barite mine, Tuscarora Range _____ _ ._. ________ Humboldt County Golconda manganese-tungsten...64 64 65 65 65 65 Barium Products Corp., Ltd., mine...... --_--______.______ Lincoln County__-__-----_-----_-----___...district____ .________..__ Nevada Scheelite mine.. _ ______ Hooper No. 2 mine __ _____ _ _ Yankee Girl mine_______________...Mountains_____________.____ Desert Scheelite mine..... _______ Gunmetal mine _ ___________ _ Manganese-tungsten |  | Cacho, Andreu, Melgarejo, Joan-Carles, CamprubĂ, Antoni, TorrĂł, Lisard, Castillo-Oliver, Montgarri, Torres, BelĂ©n, Artiaga, David, Tauler, Esperança, MartĂnez, Ălvaro, Campeny, Marc, Alfonso, Pura, Arce-Burgoa, Osvaldo R. (2019) Mineralogy and Distribution of Critical Elements in the SnâWâPbâAgâZn Huanuni Deposit, Bolivia. Minerals, 9 (12) 753 doi:10.3390/min9120753 | Journal (article/letter/editorial) | | [21]. A similar dike also occurs at the Dolores mine, on regime [29,30]. Llallagua Formation consists...a blindtointrusion Cerro Pozokonishales (Huanuni mine;deposited Figure 2) during a marine transgression...three main domains, a central domain the Huanuni mine northern part the two district. All these peripherally...peripheral ordikes distaloccur domains named to Bonanza and La area. SuerteNevertheless, (south and the...a blind intrusion below Cerro Pozokoni (Huanuni mine; Figure 2) within the core of the homonymous anticline |  | | Journal (article/letter/editorial) | | Humboldt Range (Nevada, USA), the Basin district (Montana, USA) and Equity Mine (British Columbia, Canada)...peripheral (chlorite-epidote-prehnite) to internal (sericite and/or pyrophyllite) alteration zones. In the...(1993), Novazza (Italy) by Cadel (1986), Equity Mine (British Colombia) by Cyr et al. (1984), Wojdak...in the Humboldt Range (Nevada, USA), the Basin district (Montana, USA), in subaerial volcanic and hypabyssal... ,o = 0 E O _= l ZZm 2~ mine, Champion mine, Rochester mine) is mainly located within Triassic |  | | Report (issue) | | l-A. Sierra Blanca limestone in Santa Barbara County, CaliW. Walker. 1950. 5 pp., 1 pi. Price 25*. ...Price 25tf. Commercial "black granite" of San Diego County, California, by Richard A. Hoppin and L. A. Norman...of the San Dieguito pyrophyllite area, San Diego County, California, by Richard H. Jahns and John F. Lance...pis., 21 figs. Price 50*. Geology of the Jurupa Mountains, San Bernardino and Riverside Counties, California...Price 25*. Geology of Bitterwater Creek area, Kern County, California, by Henry H. Heikkila and George M |  | | Report (issue) | | COPPER IN SHASTA COUNTY, CALIFORNIA.0 By L. C. GRATON. INTRODUCTION. LOCATION. Shasta County lies just south...and western boundaries of the State. The Shasta County copper region is a somewhat ill-defined area lying...lying near the middle of the western half of the county, 80 to 100 miles east of the Pacific and at about...statement of the salient features of the Shasta County copper region aad of some of the general conclusions...at some intervening points. COPPER IN SHASTA COUNTY, CAL. 73 There is also a common division of the |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.âŻcone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Toddâs Ford, a mineral depositâŻHematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarriesâŻoilstone. DELAWARE COUNTY DELAWARE...nodulesâŻPyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) âŻHematite. HOCKING COUNTY AREA |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.âŻcone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Toddâs Ford, a mineral depositâŻHematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarriesâŻoilstone. DELAWARE COUNTY DELAWARE...nodulesâŻPyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) âŻHematite. HOCKING COUNTY AREA |  | | Journal (article/letter/editorial) | | continues. The most characteristic minerals include sericite,quartz, chlorite, sulfides,epidote,zoisite, clinozoisite...productconsistingin somedistricts,for example, of quartz and sericite. A conspicuous feature of the alteration of the... A contraryexampleis describedby Burbank from Bonanza, Colorado where a natural barrier to movement of...replacement of limestone.In the Northern Empire Mine of Canada(11) the rocksnear the veinsare brown due...locally tourmaline. At the Nighthawk Penninsulargold mine Byers (19) found the rock darkeneddue to the development |  | | Report (volume) | | recently found in the Tenmile district, Summit County. In his booklet, which today would be classed as...feldspar, and mica, occur in some form in every county in the State. Among mineralogists, Colorado is...southwestward from Boulder County to the southern limits of the San Juan Mountains. They have yielded much...lava flows of North and South Table Mountains, lefferson County, the contact-metamorphic minerals of...of Italian Mountain, Gunnison County and elsewhere, and the vast number of rare minerals in the alkalic |  | | Report (volume) | | Basin province. Snake River valley 1 _ _ Jarbidge Mountains _ Geology Sedimentary rocks Paleozoic rocks _...mine_______________________________ Alpha mine _______________________________ Starlight mine ______________________________...______ Legitimate mine _____________________________ Flaxie mine ________________________________ 1...west veins Continued, Page. Pavlak mine : 59 Pick and Shovel mine 60 Bluster mine_____ 6.1. Big Vein...Success mine _ 63 Jarbidge Central prospect 65 Buckeye mine __ 65 Cold Spring mine_ __ 66 Norman mine- _ ; |
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