 | | Journal (article/letter/editorial) | | in value were investments in Chile. Total British capital invested in Chile quoted on the London Stock...i9ii British publicly subscribed investments in Chile (J46,375,ooo) were approximately half as large...in Argentinian industries was six times that in Chile. Although the Chilean investments of Great Britain...Hobson has estimated that British investments in Chile at the end of December I9I3, by refined computations...important part in the economic development of Chile; yet its function and its distribution among different |  | | Report (chapter) | | faults; in the San Juan Mountains, Colorado, in particular, earlier fractures related to caldera collapse were...f ore components. Manto-type copper deposits are best known from Chile and southern Peru. They consist...rocks immediately following their accumulation. Copper and subordinate silver were leached from the volcanic...origfn may l~e similar to that of the manto-type copper deposit~ Volcanogenic magnetite (+ hematite, apatite...pyroclastic beds at Cerro de Mercado, Mexico, and El Laco, Chile. The map netite magma separated from its ca/c-alkaline |  | | Journal (article/letter/editorial) | | replacementdeposits, and the magnetiteflows of Laco, Chile. The Iron Ore Deposits of the Pacific Basin Magmatic...Laco, also in the high Andesmountainsof northern Chile, around the base of a modern volcano. Here, ß ...Imperial,* Relun ;* Chile 2. CementoMelon,* Chiliquaquen,La Higuera,* Romeral,* E1 Tofo ;* Chile 3. Algarrobo...Algarrobo,* Mercedita,* Paipote;* Chile 4. E1 Laco,* San Sebastian; Chile 5. Acari,* Cerro Casco,Marcona ;* Peru...and Hornkohl, 1947), Figure 2A. Farther north in Chile, a bandediron formation is reported Indicatesdepositsexaminedby |  | | Journal (article/letter/editorial) | | Society of America Bulletin Quaternary Geology of Chile: Brief Outline KENNETH SEGERSTROM Geological Society...Quaternary Geology of Chile: Brief Outline Abstract: The Quaternary deposits of Chile are generally classified...their mode of deposition and the physiographic province in which they occur. Lacustrine, fluvial, mudflow...Magallanes. The composition of the Quaternary tuffs of Chile ranges from rhyolitic to basaltic, but the lavas...of northern Chile showing principal areas of Quaternary deposits 158 2. Map of central Chile showing principal |  | | Book | | Av. Jose Galvez Barrenechea 218, Urb. Corpac Lima-San Isidro, Peru Prof. Dr. ESTEBAN CEDILW Facultad de...Geologia, Universidad de Guanajuato Ex-Hacienda de San Matias s/n Apartado Postal 347 Guanajuato, Gto. 36020...Universidad de Concepci6n Casilla 4107 Concepci6n, Chile ISBN 978-3-642-88284-5 DOI 10.1007/978-3-642-88282-1.... . . . 37 The Metalliferous Ore Deposits of Chile and Argentina, and Their Geologic Framework J. Oyarzun.... . . . . . . . . . . 147 X Contents El Aguilar Mine: An Ordovician Sediment-Hosted Stratiform Lead-Zinc |  | | Report (issue) | | Ramon Alonso Harris Department of Natural Resources, San Juan, Puerto Rico Mr. Johannes H. Schellekens University...................... 2 Cerro Avispa Gold-Silver-Copper Prospect .............................. 6 Geology....... 8 Geology of the Area: Southwest Igneous Province ........................ 12 Geology and PGE Potential.............. 15 The Tanama and Helecho Porphyry Copper Deposits ...................... 17 Introduction...................... 17 History of the Porphyry Copper Deposits ...................... 18 Mineral Deposits |  | | Journal (article/letter/editorial) | | Survey of the Province of Tarapaca, and Route to Chile by the Coast of the Desert of Atacama Author(s):...of t/le Province of Tarapaca, and Route to Chile by the F.B.G.S coast of t11eDesezt of Atacama. By W....barrenhills istobe gone over,composedof s-olcanicrocks,san(lstone, and here and thele a little dark granite...Inca Tupanki establishedfor a time his courtin Atacama,intrustingthe commandof an expeditionto Sinclli...whellhe partedfromPizarro to undertakethe conquest of Chile, took the mountainroute from Cuzeooverthe Andes |  | | Corporate Document | | County, Nevada Hatter Graben Elko County, Nevada San Juan Silver Fire Creek Creede, Colorado Lander...2.8 2.7 San Sebastian 2.3 Durango, Mexico operating mine/mill pre-development project exploration...exploration project corporate office 2017 2018 2019 Founded in 1891, Hecla Mining Company (NYSE:HL) is a leading...stages of the re-evaluation, our belief in the project – that these mines and exploration targets we bought...production in its history as we executed on a new mine plan that improved the grade and reduced development |  | | Corporate Document | | Nevada Fire Creek San Juan Silver Creede, Colorado Lander County, Nevada operating mine/mill pre-development...pre-development project exploration project corporate office San Sebastian Durango, Mexico Val d’Or, Quebec...Casa Berardi, and the work being conducted at San Sebastian, the Nevada operations, and Lucky Friday, we...Casa Berardi was the first internationally operated mine to become CORESafety-certified. And our All Injury...always be secondary in importance to safety. At each mine – from drilling to haulage – we’re doing something |  | | Journal (issue) | | from near $1.100 i..g Codelco, Minmetals tie up copper at 103-105~ ~.._<:loo,. ~.._Qlo,,., .._0 ,....teel dC(tlJlr• d Ill Aurtl. torrrnnr. ~l 11tal Slt::el U~:\ ,\hlch IS 110\\ the lnrgest p·oduc .,. Tl11s...o grant 1>roclucers f\11llc1I tE• I u-A and lJ t el \.\;h el111e, Prtl'-hllre,h St cl .11s located Ill...relit lo l 11 W k w,tlloul lahorat111g. f\1 lli11 ~I ·el U A spokPsrnc n Da\£ All n r 1terc1ted 011 Jun 10...+-31 ~ "50.EChile Comtspondent Tom Amparo ~ 56 " 326 56 P Advertisement |  | | Book | | : i ye "Pe 7 a pre \ 2 , ' : 8 lilbap el ' ae “ay oe ar DISCARDED Gems« Minerals Richmond... MINERALS: PRODUCTS OF A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm...sulfate). Azurite (blue copper carbonate) can react to form malachite (green copper carbonate). If malachite...collectively as zeolites. Calcite (septarian nodule), San Juan County, Utah, USA * 18 x 24x Bem 14 | MINERALS:...of malachite and blue of azurite are both due to copper, an element that can produce different colors in |  | | Corporate Document | | 5 32% lead 9% lead 19% gold Casa Berardi San Sebastian 27% of consolidated revenue 18% of consolidated...d’Or, Quebec San Juan Silver Esmeralda County, Nevada Creede, Colorado San Sebastian Durango, Mexico...Mexico operating mine pre-development project exploration project corporate office Financial Highlights...which gave us 100% ownership of the Casa Berardi mine in Quebec, Canada. HL / 1 “Our success in 2016...production capacity with the successful startup of San Sebastian, the development of the open pit at Casa Berardi |  | | Corporate Document | | (pre-development project) Montanore (Ag, Cu) Libby, Montana (pre-development project) Vancouver, BC... Québec Hatter Graben (Au) Elko County, Nevada San Juan Silver (Ag, Pb, Zn) Mineral County, Nevada...Lander County, Nevada FINANCIAL HIGHLIGHTS San Sebastian (Ag, Au) Dollars in thousands except in per...9 $ 128.1 operating mine/mill pre-development project exploration project corporate office (0.20)...exploration, and sustaining capital costs at the mine sites. AISC, after by-product credits, for our consolidated |  | | Corporate Document | | Val d’Or, Quebec San Juan Silver Creede, Colorado operating mine San Sebastian Durango, Mexico pre-development...pre-development project exploration project corporate office Innovations such as the tele-remote load-haul-dump...gain experience with the new technologies in the mine, then use that information across our organization...example, at the Lucky Friday, where we’re planning to mine at even greater depths thanks to the completion...toward significantly increasing safety and making the mine more productive and predictable – and has the potential |  | | Book | | three people who directly affected me and this project, but unfortunately did not live long enough to...bibliographical journeys, William Panczner has completed a project that many of us would have loved to initiate, but...this volume. Many other people helped on this project in countless ways, but space does not permit listing...Hecht who provided financial support for this project. Lastly, this book could not have been completed...who had to put up with all the problems with the project over many years and thousands of hours I spent |  | | Journal (article/letter/editorial) | | of chicory amounts to about 10,000,000 pounds. In San .Joaquin County, California, about 400 acres .are...from the back extend ends levers or arms which project above the platform, and number and increased the...Tarapaca, a Peruvian province now To an inquirer about Bell Telephone Company occupied by Chile, it is found...468.56 198,855.44 the great desert of Acat.ama, Chile; but in these regions 1889........................compilation of the a nature identical with those of Chile, and I have but B oston Herald: little doubt that |  | | Corporate Document | | candle. They’re underground at the original Hecla mine in Burke, Idaho, which yielded more than nine million...this mechanized rock bolter at the Greens Creek mine – dramatically increase not only miner safety, but...gave us 100 percent ownership of the Casa Berardi mine in Quebec, Canada. HL / 1 Dear Fellow Shareholder...in the country to deliver paste underground and mine under backfill. HECLA LIQUIDITY And we’ve maintained...which, when completed, will put the Lucky Friday mine almost two miles below the surface. Much of our |  | | Journal (article/letter/editorial) | | of mineral deposits. Sixteen mining districts in Chile, and 24 in Argentina, were attributed to the seismically...zones roughly parallel to the axis of the Peru-Chile trench (Carachas-Portillo, Choquelimpie, Iquique...fracture zones roughly perpendicular to the trench (El Salvador, Maricunga, Jaroma, Ujina, Tumbaya and Incahuasi-LeoÂn...genesis and age of formation of porphyry and other copper deposits (Sillitoe 1972, 1977, 1981, 1988, 1992;...Ulriksen (1990) for the northern and central part of Chile and from Mapa Minero (1966) for the northwestern | | | Book | | three people who directly affected me and this project, but unfortunately did not live long enough to...bibliographical journeys, William Panczner has completed a project that many of us would have loved to initiate, but...this volume. Many other people helped on this project in countless ways, but space does not permit listing...Hecht who provided financial support for this project. Lastly, this book could not have been completed...who had to put up with all the problems with the project over many years and thousands of hours 1 spent |  | | Report (issue) | | Department of Energy [1]. Financial assistance for this project was received from the Federal Republic of Germany...literature. An example was with the Osamu Utsumi mine in Brazil. This deposit has been reported in the... Sources of Information Information for the INTURGEO project was collected primarily through the published...original data collection forms prepared by the project geologists. This source of information is collectively...management techniques and systems used for the INTURGEO project. Two independent database management systems are |  | | Report (volume) | | Honduras-------------~----------------------------------- El Quetzal mine_______________________________________..._________ Siria mine ________________________ ------------- __ ----Los Hornitos mine ______ ;_______...--- Page 44 44 44 45 San Fernandez mine_---------------------------------San Francisco mine________...mine____________________________________ La Uni6n mine ________________ -----------------------(}uatemala_______...Tablas deposit_____________________________________ El Carrizal prospect ___ -------------------------- |  | | Book (volume) | | volumes of The Decade of North American Geology Project series, has been made possible by members and friends...pledging more than $50,000 in support of the DNAG Project: Pennzoil Exploration and production Company Phillips... Cover Photo: Chapter 20. 10 La Caridad Copper Mine, I. Salas, Guillermo P. 90-28579 ■ Sonora...173 15. Baja California Peninsula Metallogenic Province . 177 16. Summary of structural and stratigraphic...data on the Monterrey Formation outcrops of the San Hilario area, Baja California Sur . 179 Guillermo |  | | Report (volume) | | Generalfeatures___________________________________________ San Seba.stian Formation-----------------~------------Sand...fault________________________________________ Quebrada El Gato fault ____ ~------------------------------Rfo...FIGURE 20. Outcrop of sandy limestone member, San Sebastian Formation________________________________________________...Economic Development Administration, as a part of a project to prepare detailed geologic maps of the Commonwealth...gravel. Formations recognized are the lenticular San Sebastian, about 125 meters of gravel, sand, clay, and |  | | Corporate Document | | exploration, and sustaining capital costs at the mine sites. AISC, after by-product credits, for our consolidated...electric when you consider the direction we’re copper, higher than gold. It also doesn’t spark vehicles...other investible silver notable at the Lucky Friday mine, in the their photographs – prints made with gelatin... produces all its silver in the United States. mine deeper, the grade of the deposit is hundred years...going to start looking more at depth; however, the mine is in a highly mined at Lucky Friday came from |  | | Corporate Document | | resulted largely from the COVID-19 pandemic, global mine production is recovering. ... developing the Keno Hill mine in the Yukon. The company owns a number of exploration...exploration, and sustaining capital costs at the mine sites. AISC, after by-product credits, for our consolidated...growth and innovation. That innovation means that the mine is safer and more efficient, so we can operate at...part of the green future, and we’re conscious to mine responsibly. That’s a win, not just for Lucky Friday |
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