 | | Report (issue) | | W ALC01'T, DIRECTOR OR.E .DEPOSITS OF THE SILVER PEAK QUAl)RANGLE, NEv1IL~ BY •I JOSIAH EDWARD...The Dividend group of prospects in the Windypah district. .. _.... _._................ 117 117 Genetic.... . . . . . . . . 118 Genetic relations of the silver mines of Mineral Ridge __ ..... . . . . . . . .... . . . . . . . . . . . . 122 Comparison of Silver Peak deposits with other ores......... . . . . . ...XIII. XIV. XV. XVI. XVII. Geologic map of the Silver Peak quadrangle __ . ___ .. __ • _________ . ___ |  | | Report (volume) | | Mineral Resources of the Owens Peak and Little Lake Canyon Wilderness Study Areas, Inyo and Kern Counties...*'-<.' **f?i Peak and Little Lake Canyon Wilderness Study Areas, Inyoand...M. F. and others Mineral resources of the Owens Peak and Little Lake Canyon Wilderness study areas, Inyo...no.: I 19.3:1708-B 1. Gold ores California Owens Peak Wilderness. 2. Gold ores California Little Lake...Canyon Wilderness. 3. Tungsten ores California Owens Peak Wilderness. 4. Tungsten ores California Little Lake |  | | Journal (issue) | | . . . . . . . . . 19 by J. A. Scovil The Machow mine, Tamobrzeg, Poland . . . . . . . . . . . .. .. ...after argentite, 10 cm tall, from the Las Chispas mine, Arizpe, Sonora, Mexico. Houston Museum of Natural...altered either by nature, by construction, by further mining, or by subsequent collecting. If there is the slightest...geologic setting and mineralogy of the mine site. The Harding mine catalog will provide researchers and...citations on the Harding mine and information about other collections of Harding mine specimens. The museum |  | | Journal (article/letter/editorial) | | northwestern Mexico: tectonic implications Ricardo Vega-Granillo, Alicia Sarmiento-Villagrana, Sergio Salgado-Souto...Elizabeth Araux-Sánchez To cite this article: Ricardo Vega-Granillo, Alicia Sarmiento-Villagrana, Sergio Salgado-Souto...northwestern Mexico: tectonic implications Ricardo Vega-Granillo Sánchez d a , Alicia Sarmiento-Villagrana...geochronology of migmatitic leucosome bands indicates that peak metamorphic conditions were reached between ~93...California, and even extend north into the Sierra Nevada batholith and the Sevier hinterland. This extensive |  | | Report (volume) | | _________________________________ _______ Status of mining and prospecting in Colombia__________ ____ Maps...rocks___-________________________ __ Colombian mining law. ____________________________________________...Guajira________________________________________ Mining methods_----_______________L_____________-__________..._________________--__---___-----------------Pato district._________________--__-_-----------------Cuturti...mines__--_______-__--_-----_-----------------------Segovia district-____________-________-_-_-_---------Silencio |  | | Journal (article/letter/editorial) | | Kingman,Arizona (Fig. 1), by Wilkinson et al. (1982), Vega (1984), and Lang and Eastoe(1988) have establishedmineral...havebeenappliedto identify Lithologicsetting In the Wallapai district, the Cerbat complex the sulfurisotopesignatureof...PARK, AZ,STABLE 1SOTOPE STUDIES 651 •0 Ithaca Peak Stocks Rhyollte Dikes ,,'[-•Quartz-Feldspar Gneiss...gneiss, biotiteandchloriteschists, andminorquartzite Vega (1984). hasexperienced uppergreenschist or loweramphib-...batcomplexwasintrudedby a 1,740___ 20-Mabiotite granitebatholith(Silver,1967;U-Pbzircon,olddecay 6 by 20 km definedby the |  | Alford, Lee, Gysi, Alexander P., Hurtig, Nicole C., Monecke, Thomas, Pfaff, Katharina (2020) Porphyry-related polymetallic Au-Ag vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace element chemistry. Ore Geology Reviews, 119. 103295 doi:10.1016/j.oregeorev.2019.103295 | Journal (article/letter/editorial) | | polymetallic Au-Ag vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace...polymetallic AuAg vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace...polymetallic Au-Ag vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace...City historic Au-Ag mining district is located in the Front Range of Colorado, USA, and has been one of...Previous studies have related ore formation in the district to the emplacement of Late Cretaceous-Paleogene | | | Journal (issue) | | after argentite, 10 cm tall, from the Las Chispas mine, Arizpe, Sonora, Mexico. Houston Museum of Natural...altered either by nature, by construction, by further mining, or by subsequent collecting. If there is the slightest...geologic setting and mineralogy of the mine site. The Harding mine catalog will provide researchers and...citations on the Harding mine and information about other collections of Harding mine specimens. The museum...high-quality, precisely located specimens from the mine. Interested persons should send helpful information |  | Izaguirre, Aldo, Iriondo, Alexander, Kunk, Michael J., McAleer, Ryan J., Atkinson, William W., Martínez-Torres, Luis M. (2017) Tectonic Framework for Late Cretaceous to Eocene Quartz-Gold Vein Mineralization from the Caborca Orogenic Gold Belt in Northwestern Mexico*. Economic Geology, 112 (6) 1509-1529 doi:10.5382/econgeo.2017.4519 | Journal (article/letter/editorial) | | 20192, USA of Geological Sciences, University of Colorado at Boulder, Boulder 80309, Colorado, USA of Geology...Colorado School of Mines, Golden 80401, Colorado, USA 6 Departamento de Geodinámica, Universidad del...belt of the United States and Mexico and related mine sites and prospects are also shown. Downloaded...Acquisitions user 26° Santo Tomás u Ba Sierra Nevada 26° z Area of Figure 1B Chihuahua e Age ~135–104...Nacozari Fortuna San Francisco-Llano Northwestern/ Nevada Grass Valley Cd. Juárez El Chanate Caborca |  | Sawyer, David A., Wahl, R.R., Cole, J.C., Minor, S.A., Laczniak, R.J., Warren, R.G., Engle, C.M., Vega, R.G. (1995) Preliminary digital geologic map database of the Nevada Test Site area, Nevada. Open-File Report Vol. 1995 (95-567) US Geological Survey doi:10.3133/ofr95567 | Report (issue) | | Digital Geologic Map Database of the Nevada Test Site area, Nevada By David A. Sawyer1, Ronald R. Wahl1...connection thereby. 'Denver, Colorado 2Las Vegas, Nevada 3Los Alamos National Laboratory, New Mexico 1995... INTRODUCTION Work on geologic compilation of the Nevada Test Site (NTS) map and Pahute Mesa 30' x 60' quadrangle...geologic synthesis of the southern Great Basin in Nevada. One of the central objectives of the program was...has been released (Minor and others, 1993). The Nevada Test Site/Pahute Mesa digital geologic map database |  | Keith, S.B., Schnabel, Lorraine, DeWitt, Ed, Gest, D.E., Wilt, Jan (1983) Map, description and bibliography of the mineralized areas of the Basin and Range Province in Arizona. Open-File Report Vol. 1983 (84-86) US Geological Survey doi:10.3133/ofr8486 | Report (issue) | | molybdenum, iron, manganese, barium, mercury, gold, silver, platinum, beryllium, lithium, tungsten, tin, fluorine...produced ore (Keith and others, 1983), (2) have mine workings to suggest past production, (3) are described...unpub. data), or (5) have been investigated by mining companies who have documented the presence of mineralized...Area may not be the same as the conventional Mining District name from older literature for the same geographical...geographical area. If an existing Mining District contained deposits of a specific age and type (for example |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...from the C en ten n ia l Eureka m in e, T intic district, Juab C ounty, U ta h ..........................for rates,) ‘ Continued on p. 239 COVER: Wire SILVER, 12 cm, from Kongsberg, Norway. William Larson...published, a sample article (the recent Red Cloud mine article— click on the specimen photos and blow them...family, which had owned and operated the Las Chispas mine near Arizpe, Sonora. The family sent Schmitter a |  | | Journal (issue) | | crystal with calcite, 6.5 cm, from the Cosq uez mine, Colombia; found in 1998. Scott Rudolph collection............................................... 22 Mine Exploitation (or not) Today ................................................................. 28 Mining Methods .........................................dramatically illuminated by gas jets concealed behind silver reflectors. Twelve thousand people paid a quarter...geology, mining techniques, mineralogy, and specimen-collecting aspects of the Colombian emerald-mining region |  | | Book | | The endsheet maps are reprinted from The Mexican Mining Industry 1890-1950 by Marvin D. Bernstein, by permission...is * CONTENTS Foreword Preface Important Mining Districts Discovery and Developments in México...introduction contains an interesting summary of the mining history and the development of mineralogy. It also...The author discusses eight of the more important mining districts in México, which produce fine mineral...geologists, mineralo- x / Foreword gists, and mining engineers, but also for mineral and gem collectors | | | Book | | The endsheet maps are reprinted from The Mexican Mining Industry 1890-1950 by Marvin D. Bernstein, by permission... CONTENTS • Foreword lX Preface Xl Important Mining Districts 1 Discovery and Developments in Mexico...introduction contains an interesting summary of the mining history and the development of mineralogy. It also...The author discusses eight of the more important mining districts in Mexico, which produce fine mineral...geologists, mineralo- LX x I Foreword gists, and mining engineers, but also for mineral and gem collectors |  | | Book (volume) | | 5 = fii? i a j — » ya y _— ’* : i mine in. q)! Y eit iia -...Furcron, Chief Geologist of the Department of Mines, Mining and Geology; on the State of Michigan by Robert...Stevens Point, Wisconsin, and by A. L. Mahaffey of Nevada, Missouri. The well-known Texas agate localities...Kobuk jade locality. Descriptions of San Diego County, California, gemstones and the mines in which they...the generous assistance of many residents of that county. My special thanks are extended to Elbert H. McMacken |  | | Journal (article/letter/editorial) | | associated with pink microcline, lustrous silvery muscovite, and smoky quartz. It comes from beautiful Glenwood...occur at shipping many tons and the mine shows the old Lane bismuth mine, at Monroe, promise of being another...(fluorDELAWARE — Gray cleavable masses ite) from this mine is of all colors and of orthoclase have been found...about l]/2 miles southwest of Sweat setting them in silver mountings. Now Mountain (Cobb Co., Ga.). The dravite...just like a 20 inch quartzite band which has been mine. I have been informed so many injected and locally |  | Atencio, D., Chukanov, N. V., Coutinho, J. M.V., Filho, L. A.D. M., Dubinchuk, V. T., Möckel, S. (2007) Ruifrancoite, a new Fe3+-dominant monoclinic member of the roscherite group from Galileia, Minas Gerais, Brazil. The Canadian Mineralogist, 45 (5) 1263-1273 doi:10.2113/gscanmin.45.5.1263 | Journal (article/letter/editorial) | | Paulo, SP, Brazil Luiz A.D. MENEZES FILHO Rua Esmeralda, 534, Prado, 30410-080, Belo Horizonte, MG, Brazil...occurs as a late vug-filling mineral in albite and muscovite, closely associated with cyrilovite and meurigite...pegmatite at the Sapucaia (Proberil) mine, Sapucaia do Norte, Galiléia County, Minas Gerais, Brazil. Ruifrancoite...Former descriptions of “roscherite” at Sapucaia mine, and “Fe3+-dominant species” at Pomarolli farm,...mineral species, phosphate, roscherite group, Sapucaia mine, Galiléia, Minas Gerais, Brazil. § E-mail address: |  | | Book | | semi-precious in beryl history of gemstone mining the on papers in of knowledge the many ...considerable deemed to possess, that encouraged mining despite meager yields and the appalling conditions...chambers, There modem they recovered only extremely mining. were posits be equally made to pay in ancient...Punjab, among which of the ancient world, wood mining gem trade in emeralds were in the ruins of...prehistoric turquoise,” gemstones, region is mining activity. Eichholz suggests probably is therefore |  | | Journal (issue) | | ThitMi . .,, ..,;.:.~ Marcasite frotn Austin Travis County, Texas William L. Rader 8210 Bent Tree Road, #219...powder. Continued on page 4 News -o f Pegmatite Mining in Wes tern Australia Mark Ivan Jacobson Perth...San Ramon, CA 90583, USA Durin g the last decade, pegmatite prospecting and mining in Western Australia...success of Sons of Gwalia, Inc. in making a profit mining . n talum, tin, and lithium from the Greenbushes...hardrock exploration companies are attempting to mine lithium (spodumene) and tantalum (tantalite-microlite) |  | Tazzo-Rangel, M. Daniela, Weber, Bodo, González-Guzmán, Reneé, Valencia, Víctor A., Frei, Dirk, Schaaf, Peter, Solari, Luigi A. (2019) Multiple metamorphic events in the Palaeozoic Mérida Andes basement, Venezuela: insights from U–Pb geochronology and Hf–Nd isotope systematics. International Geology Review, 61 (13) 1557-1593 doi:10.1080/00206814.2018.1522520 | Journal (article/letter/editorial) | | Environment, Washington State University, Pullman, USA; cDepartment of Earth Sciences, University of the...de San Lucas, SM: Santander Massif, SNSM: Sierra Nevada de Santa Marta, SP: Sierra de Perijá, TI: Toas...as well as the Acatlán Complex in SW Mexico (e.g. Vega-Granillo et al. 2007, 2009a; Keppie et al. 2008b...also comprises the Sierra de Perijá and the Sierra Nevada de Santa Marta (Audemard and Audemard 2002; Monod...suites: Sierra Nevada, Bella Vista, and Tostós (Odreman and Useche 1997). The Sierra Nevada suite is constituted |  | | Report (issue) | | Gavilanes Tungsten District El Antimonio District Magdalena District Cananea District Preliminary Deposit-Type...or to a group of closely-spaced deposits. Two district records have been included (MX00018 and MX02161)...or names of individual orebodies. DISTRICT/AREA Informal district name used in the literature. Names...economic interest. MINOR: Coproducts or byproducts of mining. POTEN: Commodities that have not been exploited...geologic inferences only ("inferred ore"). The mining industry terms "proven", "probable", and "possible" |  | | Book (edition) | | McDonald Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones...used mining districts as part of the locality description. These political and geographic district names...with a more descriptive term, metallic mineral district. This term shows the geochemical and mineralogical...reader to learn more about the geology of the district and to possibly predict the minerals that could...districts. Where possible, the metallic mineral district for each mineral locality is given for the mineral |  | Aird, Hannah M., Purcell, Ceara K., DeWitt, Nancy, Matthews, James, Capurro, Twyla, Claiborne, Justin, Bermudez, Jocelyn, Meisel, Zachary (2021) Gold-and silver-bearing assemblages in the Ann-Mason copper porphyry deposit, Yerington, Nevada. Ore Geology Reviews, 138. 104339pp. doi:10.1016/j.oregeorev.2021.104339 | Journal (article/letter/editorial) | | Gold-and silver-bearing assemblages in the Ann-Mason copper porphyry deposit, Yerington, Nevada Hannah...95929, USA A R T I C L E I N F O A B S T R A C T Keywords: Ann-Mason Porphyry Gold Silver Sulfides...the Ann-Mason porphyry deposit, including gold, silver, palladium, mercury, lead and bismuth. Petrographic...ore deposits hosted by the Yerington batholith in Nevada, and is being assessed for copper extraction from...a sulfide mineral, with 68% hosted by bornite. Silver is most commonly present as hessite and gold as |  | van der Lelij, Roelant, Spikings, Richard, Ulianov, Alexey, Chiaradia, Massimo, Mora, Andrés (2016) Palaeozoic to Early Jurassic history of the northwestern corner of Gondwana, and implications for the evolution of the Iapetus, Rheic and Pacific Oceans. Gondwana Research, 31. 271-294 doi:10.1016/j.gr.2015.01.011 | Journal (article/letter/editorial) | | was followed shortly by Barrovian metamorphism. Peak metamorphic conditions at upper amphibolite facies...in Mexico (e.g. Keppie et al., 2008, MA 2012; Vega-Granillo et al., 2009a and references therein) and...isotopic data from the Garzón Massif and the Sierra Nevada de Santa Marta of Colombia (Fig. 1; e.g. Yañez...Mérida Andes, the Santander Massif, the Sierra Nevada de Santa Marta and the NU basement of Lake Maracaibo...Vista suites and the AC amphibolite facies Sierra Nevada Suite (Fig. 2; Odremán and Useche, 1997). Mapping |
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