 | | Journal (article/letter/editorial) | | Betekhtinite and Bi-Sulfosahs from the Copper Mine of ,,La Leona" (Argentina) BEATRIZ MELBA HONNOREZ-GuERSTEIN...Miami, Florida Le gisement de cuivre de la mine <Leona>>est form6 de filons de minerais recoupant...la bornite est discut6e. The copper deposit "La Leona" consists of ore veins in a granite batholite which...Bi-sulfosalts within the copper ore deposit of the "La Leona" Mine, Province of Santa Cruz, Argentina. In June 1965...Mineria de Buenos Aires requested a survey of La Leona Mine and sampling of the ore along an exploration |  | Jovic, Sebastián M., Guido, Diego M., Schalamuk, Isidoro B., Ríos, Francisco J., Tassinari, Colombo C. G., Recio, Clemente (2011) Pingüino In-bearing polymetallic vein deposit, Deseado Massif, Patagonia, Argentina: characteristics of mineralization and ore-forming fluids. Mineralium Deposita, 46 (3) 257-271 doi:10.1007/s00126-010-0324-5 | Journal (article/letter/editorial) | | responds to not outcropping subvolcanic bodies from La Leona Complex and the spatial relation between the sulfide...Triassic sedimentary rocks. These intrusions (La Leona Complex), define a high-K calc-alkaline monzonite...exploration with more than 50 active projects. Numerous gold and silver low sulfidation epithermal deposits are...than 10% in volume. They are mainly pyrite, native gold, electrum, argentite, native silver, Ag– sulfosalts...associated mafic sills and dykes, assigned to the La Leona Complex of probably Lower Jurassic age (Jovic 2010) |  | | Journal (article/letter/editorial) | | alteration product of ehalcopyrite in the Alma mine, Leona Heights, Alameda Co., California. Named after...after Mr. G. Chalmers, the super, intendent of the mine. C hocolate-stone. See lacroisite. Chromocyclite...sesquitelluride of gold, silver, and mercury from Kalgoorlie, East Coolgardie gold-field, Western Australia. Proved...Proved to be a mixture of coloradoite (HgTe), and the gold and silver tellurides, calaverite, sylvanite, and...Soe. Tasmania for 1900-1, 1902, p. 77 ; ibid., for 1902, 1903, p. 24 ; Rep. Seer. Mines, Tasmania, for |  | | Journal (article/letter/editorial) | | tectonic0 de Los granitoides en el Bajo de La Leona (Formation La Leona), Provincia de Santa Cruz (Geochemistry...setting of the granitoids from Bajo de La Leona (La Leona Formation), Santa Cruz Province) M. C. Godeas...161-170 Initial gold contents of silicic volcanic rocks: bearing on the behavior of gold in magmatic systems...formation waters in the Canning Basin, Western Australia, and their relationshin I to -~ Zn-Pb mineralization...meteorite finds from the Nullarbor re ion South Australia A. W. R. Bevan % A : Pring, Meteoritics, 28(4) |  | | Report (issue) | | metalliferous deposits (mostly copper, zinc, lead, iron, gold, and molybdenum) that contain pyrites. 4. Coal...metalliferous' deposits (including copper, zinc, lead, iron, gold, molybdenum, etc. deposits) containing significant...sulfur by superheated water through wells at Sulphur mine, Louisiana, are fully detailed. Exploration and...different states and Alaska California Auschwitz mine, Lake County - 2, 4 Coso Range deposits, Inyo County...Crater (Last Chance Range) mine, Inyo County - 9, 11, 15, 16, 17 Elgin mine, Colusa County - 6, 12 Full |  | | Report (issue) | | geology and developments recently published.1 ESKA MINE. The principal operations were at Eska, where an...RD MERIDIAN FIGURE 2. Sketch map of part of Eska mine, Matanuska Valley, showing position of face of Shaw...under way for the erection of a washery. CHICKALOON MINE. At Chickaloon an average of .35 men were employed...five mines, the same number as in 1918. The Gold Cord mine, which was operated in 1918, was idle, but...some bona fide sales were made. The value of the gold and silver produced in 1919 was $159,458. The Willow |  | Courtin-Nomade, A., Grosbois, C., Marcus, M. A., Fakra, S. C., Beny, J.-M., Foster, A. L. (2009) THE WEATHERING OF A SULFIDE OREBODY: SPECIATION AND FATE OF SOME POTENTIAL CONTAMINANTS. The Canadian Mineralogist, 47 (3) 493-508 doi:10.3749/canmin.47.3.493 | Journal (article/letter/editorial) | | sulfide orebody that was only partially mined at Leona Heights, California. As a result, this body has...Keywords: potentially toxic trace elements, acid mine-drainage, Fe and Mn oxides, jarosite, micro-Raman...l’altération d’un amas sulfuré partiellement exploité à Leona Heights, en Californie. De ce fait, cet amas présente... Californie. Introduction Toxic metals in acid mine-drainage (AMD) cause detrimental environmental effects...from natural unaffected outcrops. We will refer to mine-affected and unaffected as MA and UA, respectively |  | | Report (issue) | | asbestos 23 Zinc-lead skarn 26 Volcanogenic gold 32 Komatiitic nickel 37 Volcanogenic manganese...manganese 46 Bedded barite 51 Low-sulfide quartz gold 54 Silica-carbonate mercury 59 Hot springs mercury...Carbonate-hosted replacement manganese 68 Platinum-gold placer 73 Sedimentary manganese 81 Marine phosphate-upwelling...n=12), with palladium grade (r=0.88, n=5), and with gold grade (r=0.94, n-5). DEPOSITS Name Agnew (Perseverance)...Bell Mine Belvidere Black Lake British Canadian Caley Carey/East Broughton Cana Brava Cassiar Mine Clinton |  | | Journal (article/letter/editorial) | | anomalies in the La Marciana area are indicative of gold- and silver-rich hydrothermal activity. Taken in...Carboniferous siliceous sinters from Queensland, Australia,2,25 and the early Devonian Rhynie sinters in...Massif Since the discovery of the Cerro Vanguardia gold-bearing epithermal quartz veins7 the Deseado Massif...of 9 000 000 t at an average grade of 10 ppm of gold and 113 ppm of silver (Cerro Vanguardia S.A. annual...studies indicate 45 500 000 oz silver and 725 000 oz gold (Silver Standard Resources Inc. report, 1999). Bacon |  | | Journal (article/letter/editorial) | | became a geologist and a lawyer, respectively. Leona worked as a librarian at Walter Reed Medical Center...artist; her work hung in their house and his office. Leona died in I 986, but he continuedto live on BeechbankRoad... Greisen and associatedmineralization at Silver Mine, Mo. Economic Geology, 24,569-591 (1929). With R...K.J. Murata. Uranium minerals from the Hillside Mine, Yavapai Co., Arizona. American Mineralogist, 36...656-670 (1958). With D.J. Milton. Nickel-gold ore of the Mackinaw Mine, Snohomish County, Washington. Economic |  | | Show/Event (guide) | | State Mineral, ogle huge boulders o f opal from Australia and get a taste of the things soon to be viewable...mineral) and lead itself were a good indication that a gold pocket was contained in the area that they were...knew? M a n y millions o f dollars w o r t h o f gold has been mined in Arizona, and you can see why wulfenite...s Gully n e a r L i g h t n i n g R i d g e , Australia. T h i s 74 c a r a t natural m i r a c l e c...Training "A Tale of Two Mine Dumps.The Artisanal Gem Miners" North Star Mine, Mammoth, By Robert Weldon |  | | Journal (article/letter/editorial) | | persistent rumor of a marvelous mountain with native gold and silver littering the surface. On reaching Durango...mineralogical visiprofits exceeding the value of all the gold and silver coins minttors, most of whom believed...massive lenses and breccias within and overlying the Leona and Tinaja Members of the Cacaria Formation (fig...dissolution, and regrowth Figure 7. Brecciated Leona rhyolite indicate that it was cemented by clinopyroxene...with the enormous Olympic Dam deposit of South Australia, which is Australia’s premier copper deposit, |  | | Journal (article/letter/editorial) | | first described the discovery of epithermal-type gold– silver mineralization in the Deseado Massif, referred...minor components. Ore minerals consist of native gold, electrum, native silver and argentite. Tetrahedrite...uytenbogaardtite and petzite are rare. High fineness gold Ž976–984 fineness at Cerro Vanguardia. occurs along...Au is between 10 and 50 m m; visible gold is rare. Individual gold grains, with diameters of 40–70 mm,...69820 Wr48802 S La Sarita 69847 Wr48837 S La Leona 69819 Wr48805 S rhyolitic porphyry and tuffs ŽChon |  | | Journal (article/letter/editorial) | | swappers and ample parking for all. N.C. TO BUY GOLD MINE PROPERTY Downloaded by [University of Florida]...County where the discovery of gold in 1 7 9 9 touched off the first gold rush in U . S. history. This...tingency and emergency fund to purchase the Reed gold mine property. Another $ 1 5 , 0 0 0 was allocated...call for a visitor center containing exhibits on gold mining in North Carolina. I f fea sible, he said...contained gold. The following year, discovery of a nugget weighing 2 8 pounds touched off a gold rush. The |  | | Journal (article/letter/editorial) | | theIndians,thereappeared110 reasonto doubt,tElattherewere gold, silver, and lead in $hat repon; as also in the...30/28y the ground seemedto havebeen dug as if for gold washing,aIld the rockof the countryof a hardsiliciouscharacter...Antonio. SECTION IVV San Antonio to Bead Wateasof the Leona River.- -Passingthe Leon and Medio (Creeks,the eountryseen...are beds of induratedsandand roundedebbles. Lcl Leona is formedfrom clear springs-has a roekybottom with...loosepieees of silieiousrock. Bead Watersof the Leona.-The Spanishfly is here met witl in large quantities |  | | Report (issue) | | available immediately information to property owners and mine operators concerned with exploration for and production......... ............ Tex&l ••••••••••••••••• ~ Gold I •••• I I ••••••••••••••••• · "7olllinc •••...7 15 Wisconsin 16 3 1.... ... 13 9 3 l3 Gold ........................................... l3 Metallic...-4. Composite map of undereround workings, Carisu mine, Fremont County, 1\'yolline. 1 11-30'. 5. 0.01017...Carissa mine, Fremont County, Wyoaing. 1 11 -60 1 • 8. Vertical longitudinal projection, Carisaa mine, Fremont |  | | Book | | England BN7 1XU Distributed in Australia by Capricorn Link (Australia) Pty. Ltd. Janet Graff P.O. Box...Box 704, Windsor, NSW 2756, Australia Raku Beads, 2012 SPINE Patty Lakinsmith Bead from the Reptilian...Dimensions vary Polymer clay, 24-karat edible-grade gold leaf, contemporary and vintage Swarovski crystal...Eye Wood PARK ®& 2013 Each:1x 3x1cm Wooden bead, gold leaf, wood stain; wood-burning techniques PHOTOGRAPHY...Pink ® 2010 WhsioelWasie PY Syetna 22-karat gold, 14-karat gold, sterling silver, patina, pink tourmaline; |  | | Journal (article/letter/editorial) | | The next place of interest was Sloggett bay, where gold-washing is carried on in a most primitive manner... of peat. As the waves undermine the cliff, the gold-bearing gravel falls on the beach below. The sea...the debris like a natural jigger, concentrates the gold a few feet below the surface. This material the...by washing, and thus obtain small quantities of gold-enough, it was said, to provide a living wage. So...has been made to deal with this large quantity of gold-bearing material. Whether it would pay is another |  | | Journal (article/letter/editorial) | | out the entrance to the old abandoned Leona Heights Pyrite Mine in Oakland, Calif125 ornia. By going...which was first discovered in the mine. In the next few weeks, the mine entrance will be blasted shut, so...this might be the last time I could »et into the mine, I collected about one hundred and fifty good specimens...items." with leaves and other decaying matter. The mine itself is just a cut in the rock, but the vein runs...sledgehammer as the rock is very hard to break. Ask permission to visit the mine at the sand company. "I have just |  | Nieto-Samaniego, Ángel Francisco, Báez-López, Javier Antonio, Levresse, Gilles, Alaniz-Alvarez, Susana Alicia, Ortega-Obregón, Carlos, López-Martínez, Margarita, Noguez-Alcántara, Benito, Solé-Viñas, Jesús (2016) New stratigraphic, geochronological, and structural data from the southern Guanajuato Mining District, México: implications for the caldera hypothesis. International Geology Review, 58 (2) 246-262 doi:10.1080/00206814.2015.1072745 | Journal (article/letter/editorial) | | several faulted and brecciated zones where silver–gold mineralization was emplaced. The extension direction...Cubo-Villalpando fault. Also, in the southern part of the La Leona fault, there is a dome of Chichíndaro Rhyolite covering...no-linkage systems are the El Cubo-Villalpando, La Leona, Veta Madre, and Las Gachas faults. All of these...right lateral component in the Veta Madre and La Leona normal faults (Figure 2). There are some direct...the Veta Madre fault. Displacements along the La Leona and Las Gachas faults has not been measured but |  | | Journal (article/letter/editorial) | | strikingly bare. These trees were introduced from Australia and were planted widely in western California...localities. The Hayward fault is a large structural break traceable froIn San Pablo Bay to the vicinity of...much of the heavy traffic during the days of the gold rush. Sacramento was founded as New Helvetia in...sequence in some places. An important manganese mine is located in Franciscan rocks 13 miles south of...large quarry faces show the weathered, rust-colored Leona rhyolite (Pliocene ?), used as fill during the construction |  | | Report (issue) | | Geologist BULLETIN 10 GEOLOGY AND ORE DEPOSITS OF THE GOLD BRICK DISTRICT COLORADO By R. D. CRAWFORD and P... . . . . . . . . . . . . :.................. 72 Gold Links fault . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . . . . . Gold . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . Cortland mine . . . . . . . . . . . . . . . . . . . Carter mine . . . . . .. . . . . ..... . . . . . . . . . . . . . . . . . . . Raymond mine . . . . . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | Area. The first comes from the abandoned Leona Heights Pyrite Mine in Oakland, Calif. The minerals are halotrichite...pyrrhotite, native copper, gold and silver also occurred with the pyrite though the mine is now closed and partially...You see rock hounds, Bill DilThe specimen from Leona Heights lon and myself, have collected together...together. The 13 specimens were from Magnet Pyrite Mine is earthy, pale yellowish, consisting of yellowish-white...masses of melanterite. record, from the Rabbit Foot mine, SalThe agate from Berkeley Hills is a ine County |  | | Journal (article/letter/editorial) | | BOUTWELL, p. 31. Placer Gold illiizitig iii Alaska iii 1902 ; A. H. BROOKS,p. 41. Gold and Pyrife Deposifs...gravity of 3.159. W. F. HILLEBRAND. Minerals from Leona Heights, Alameda County, California. BY WALDEMAR...pyrite containing some chalcopyrite in the Alma mine, numerous soluble sulphates have been formed, of...in bright red crystals in the Redington mercury mine at Knoxville, California. “ T h e specimens are...all can be expelled before the sulphate begins to break up. Cold water dissolves slightly and the solution |  | | Report (issue) | | account of the diamonds found during the early days of gold mining, and Turner ^^^ contributes a short article...at Chero- kee as platinum, iridium, iridosmine, gold, pyrite, chromite, magnetite, limonite, diamonds...acid, pyrite deposits and pyrite concen- from the gold and copper mines are utilized. On the banks of Sulphur...and good specimens have come from the Manzanita mine. Imperial County: The mud volcanoes near Volcano...mineral. gypsum have been found in the Defiance mine. Kern County On both sides of the San Joaquin Valley |
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