 | | Report (issue) | | deposits in the Precambrian Guiana Shield of Venezuela. The following text is a descriptive lithostratigraphic...units and tectonic events of the Guiana Shield of Venezuela. The map has been digitized and plotted with the...units and tectonic events of the Guiana Shield of Venezuela. Imataca Complex (Wi on map) PRE-TRANS-AMAZONIAN...belt rocks (Xg) Pastora Supergroup Carichapo Group El Callao Fm. Cicapra Fm. Yuruari Fm. Botanamo Group... 1987; Teixeira and others, 1989; Tosiani and Sifontes, 1989). PASTORA SUPERGROUP: isoclinal recumbent |  | | Report (issue) | | AND MINERAL DEPOSITS FOR THE GUAYANA SHIELD, VENEZUELA by Gary B. Sidder U.S. Geological Survey, Menlo...deposits in the Precambrian Guayana Shield of Venezuela. The first task of the project is to identify...follows: 1) Venezuela and Guayana (or Guyana or Guiana) Shield, with 108 items; and 2) Venezuela and Economic...extracted 46 titles of dissertations that combined Venezuela and Geology. These listings were culled for applicability...tantalifera, area del Cano Aguamena, Estado Bolivar, Venezuela [Inclusions of tantalates of U, Th, Pb and Fe |  | | Report (issue) | | AND MINERAL DEPOSITS OF THE GUAYANA SHIELD IN VENEZUELA, BRAZIL, GUYANA, SURINAME, FRENCH GUIANA, AND............................................. 1 VENEZUELA.................................................deposits in the Precambrian Guayana Shield of Venezuela. The first task of the project is to identify...follows: 1) Venezuela and Guayana (or Guyana or Guiana) Shield, with 108 items; and 2) Venezuela and Economic...extracted 46 titles of dissertations that combined Venezuela and Geology. These listings were culled for applicability |  | | Book | | • . - El Dorado THE GOLD O F ANCIENT COLOMBIA from El M useo del Oro, Banco de la Republica Bogota...American Federation of Arts El Dorado THE GOLD OF ANCIENT COLOMBIA from El Museo del Oro, Banco de la...Auerbach Photography by Luis F. Barriga G., Bogota and El Museo de/ Oro, Bogota Printed by Jaylen Offset Lithography...related ceramics and stone from the collections of El Museo del Oro, Banco de la Republica, Bogota, Colombia...of Primitive Art in association \vith the staff of El Museo del Oro. The exhibition and publication were |  | | Report (volume) | | labyrinth on summit platform of Cerro Roraima, Venezuela. The pervasively cross stratified quartzose of...Docs. no. : 119.3:2124 1. Geology Venezuela. 2. Minerals Venezuela. 3. Guayana Shield. I. Sidder, Gary...Guayana Shield, Estado Bolivar and Estado Amazonas, Venezuela By Jeffrey C. Wynn, Gary B. Sidder, Floyd Gray...the Bochinche Mining District, Estado Bolivar, Venezuela By Jeffrey C. Wynn, Anne E. McCafferty, and Edixon...Exploration Geofisica en el Area de Bochinchito, Estado Bolivar, Venezuela (Geophysical Exploration in |  | | Journal (article/letter/editorial) | | nature of auriferous greenstones, Guayana shield, Venezuela Robert S. Hildebrand a,⁎, Robert Buchwaldt b,...of the 19th century was the El Callao mine of Venezuela (Sidder, 1990). El Callao is located within the...nature of auriferous greenstones, Guayana shield, Venezuela, Gondwana Research (2013), http://dx.doi.org/10...terranes of the Guayana shield within southeastern Venezuela. This paper focuses on the Imataca and Supamo...(Figs. 2, 3a,b), that Hildebrand (2005) named the El Miamo Formation, was deposited upon eroded rocks |  | | Journal (article/letter/editorial) | | crystals are documented from placers in Canada, Venezuela, and Brazil. The alluvial origin of certain of...mass California, El Dorado County, Garden Valley 1857 nugget California, El Dorado County, Georgia...48.4 ounces $1,000 Blake 1885 California, El Dorado County, Illinois Canyon 1849 48.4 ounces $1...ounces $1,250 300 ounces est. California, El Dorado County, Kelsey Blake 1885 25 pounds Thayer 1890...1885 California, El Dorado County, Oregon Canyon 1850 nugget California, El Dorado County, Pilot Hill |  | | Report (issue) | | Denver, Colorado 2CVG-TECMIN, Puerto Ordaz, Venezuela TABLE OF CONTENTS ABSTRACT ........................................ Geology of the Real Corona-El Torno assemblage .......................... Age,...and tectonic events of the Guayana Shield of Venezuela ................................................2. Mineral occurrences of the Guayana Shield, Venezuela ................ in pocket (List of occurrences...... 58) 11 ABSTRACT The Guayana Shield in Venezuela is composed of five lithotectonic provinces: 1) |  | | Book | | EL DORADO IN THE MARSHES Gol d, Slaves and Souls: Between Andes and the Amazon MASSIMO _LIVI BACCI ... the EL DORADO IN MARSHES THE Digitized by the Internet Archive in 2022 with funding from Kahle/Austin...https://archive.org/details/eldoradoinmarsheOO00Olivi EL DORADO IN THE MARSHES GOLD, THE SLAVES AND SOULS...horsemen, 138 foot soldiers, and the king of Spain; El Dorado, a vain cacique covered in gold dust washes off...fourteen men seeks to conquer half of America. E] Dorado bogs down 39 CONTENTS Vv V_ in the swamps |  | | Report (issue) | | GEOLOGICAL SURVEY MINERAL RESOURCES OF THE EL DORADO AND IRETEBA PEAKS WILDERNESS STUDY AREAS, CLARK...the results of a mineral survey of part of the El Dorado (NV-050-423) and Ireteba Peaks (NV-050-438) Wilderness...Character and setting 1 Identified resources of the El Dorado Wilderness Study Area 3 Identified resources of...Study Area 3 Mineral resource potential of the El Dorado Wilderness Study Area 3 Mineral resource potential...exploration history 9 Evaluation of prospects in the El Dorado Wilderness Study Area 10 Base and precious metals |  | | Journal (article/letter/editorial) | | material for the student. How many of us know who " El "Dorado " was 1 The " Gilded Man" was the anointed heir...early Spanish conquest is largely the quest for El Dorado. In 1533 Heredia settled himself on the coast...with a worn and wasted 170. But they had found El Dorado, and soon troops of adventurers swarmed in from...Republic which then comprised Colombia, Panama, Venezuela, and Ecuador; how he died a comparatively poor...much worse than the authorised descriptions would lead one to believe. Altogether, it will be obvious that |  | | Report (issue) | | samples froa springs and domestic wells near the El Dorado, L1«e Canyon, and Million Hills Wilderness Study... Figure 1. Index map showing location of the El Dorado, Ume Canyon, and Million Hills Wilderness Study...2. Sampling sites for water samples from near El Dorado Wilderness Study Area...........................for 12 sprlngand well-water samples from near El Dorado, Lime Canyon, and Million Hills Wilderness Study... Analytical methods used for water analyses, El Dorado, Lime Canyon, and Million Hills Wilderness Study |  | | Report (issue) | | Lead Pb c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Cubic. Point Group: 4/m 3 2/m...tarnishing to dull lead-gray; in polished section, gray-white, quickly tarnishing. Streak: Lead-gray. Luster:...(10), 1.429 (9), 0.8369 (9) Chemistry: Nearly pure lead, commonly with a little silver, copper, zinc, iron...district, Presidio Co., Texas. From El Dorado, Gran Sabana, Venezuela. At Keno Hill, Yukon Territory, Canada |  | | Journal (volume) | | [MENDOCINO u „»® o A D .A • J"-A / \ dorac OORADO EL 'ipUumT'EL /Vni n l5»£"i>«? / \ '"yioNoN. _«i...value of the metals: Gold, silver, quicksilver, lead, tungsten and iron. Structural Materials: Of the...There was also some revival of mining in the silver-lead districts of Inyo and San Bernardino counThere is...Mining District, the Black Eagle Mine (copper, gold, lead and silver) owned by Black Eagle Mining Co., Sam...screening and sorting equipment. The ore mined is lead-silver, with high values in silver. Shipped 500 |  | | Report (issue) | | stream-sediment and panned-concentrate samples from the El Dorado and Ireteba Peaks Wilderness Study Areas, Clark...5 5 5 ILLUSTRATIONS Figure 1. Index map of El Dorado and Ireteba Peaks Wilderness Study Areas, Clark...stream-sediment and panned-concentrate samples, El Dorado and Ireteba Wilderness Study Areas, Clark County...presents the results of geochemical surveys of the El Dorado (NV-050-423) and Ireteba Peaks (NV-050-438) Wilderness...of the El Dorado and Ireteba Peaks Wilderness Study Areas, Clark County, Nevada. The El Dorado and Ireteba |  | | Journal (article/letter/editorial) | | Framework of the Pliocene El Dorado Low-Sulfidation Epithermal Gold District, El Salvador MATHIEU RICHER...Columbia V6T 1Z4, Canada Abstract The Pliocene El Dorado low-sulfidation epithermal Au-Ag vein system,...located within an 84-km2 district in north-central El Salvador, is hosted by volcanic rocks formed along...rocks, outcropping mainly in north and central El Dorado, represent different parts of a complex volcanic...widely in southern El Dorado at lower elevations relative to central and northern El Dorado. The felsic rocks |  | Carrillo-Rosúa, J., Morales-Ruano, S., Morata, D., Boyce, A. J., Belmar, M., Fallick, A. E., Fenoll Hach-Alí, P. (2008) Mineralogy and geochemistry of El Dorado epithermal gold deposit, El Sauce district, central-northern Chile. Mineralogy and Petrology, 92 (3) 341-360 doi:10.1007/s00710-007-0203-7 | Journal (article/letter/editorial) | | Mineralogy and geochemistry of El Dorado epithermal gold deposit, El Sauce district, central-northern...2007 Editorial handling: B. deVivo Summary The El Dorado Au-Cu deposit is located in an extensive intra-caldera...n model is proposed for the formation of the El Dorado deposit. Introduction Epithermal deposits constitute...Detailed geological map of the El Sauce District and location of the El Dorado goldbearing epithermal deposit...and Pineda, 1999) J. Carrillo-Rosua et al.: El Dorado epithermal gold deposit 343 crop out in active |  | | Book | | bearing quartz veins of the State, especially when lead is present, as, for example, at the Princeton Mine...the stream tin of Idaho. CERUSITE–(Carbonate of Lead.) In large crystals resembling those from Siberia...Mine. El Dorado County, at the Cosumnes Mine, Hope Valley Mine, at the Bunker IIill Mine, El Dorado Excelsior...Willow Springs District, and in the veins of El Dorado Cañon, Arizona. CHRYSOCOLLA—(Silicate of Copper...Mount Diablo. GALENA—(Sulphuret of Lead.) This common ore of lead has not yet been found in finely crystallized |  | | Journal (article/letter/editorial) | | Assn. Petrol. Geo!. THE RECENT DISCOVERY AT EL DORADO, ARKANSAS On January 10, 1921 Mitchell & Busey...year by Maddox & Hinton about 2 miles west of El Dorado, Arkansas. The well came in as a gas well spraying...of whatever oil and gas field may develop in the El Do-ado territory, although the actual discovery was...producing horizons appear to be identical. The El Dorado production appears to come from about the position...because of the approximate equivalence of depths at El Dorado and at some of the producing field's on the Sabine |  | Bramel, Hadley R., Heyl, George R., Cox, Manning W., Ransome, Alfred L., Eric, John H., Wyant, Donald G. (1948) Copper in California. Bulletin 144. California State Mining Bureau | Report (issue) | | Eric Geology of the Lilvama and Pioneer Mines, El Dorado County, and California, by Manning W. Cox, Donald...map of Lilyama mine. El Dorado County. Geologic map of Pioneer mine. El Dorado County. Geologic map of...includes portions of Butte, Tuba, Nevada, Placer, El Dorado, Amador, Calaveras, Tuolumne, Mariposa, Madera...quantities of gold and silver, and a small amount of lead. — The rocks of the Foothill belt fall into two...includes portions of Butte, Yuba, Nevada, Placer, El Dorado, Amador, Calaveras, Tuolumne, Mariposa, Madera |  | | Journal (volume) | | prospecting ranks and thus interest will no doubt lead to additional discoveries. The value of production...considerably below the 1953 figure. Low prices for lead and zinc resulted in the CALIFORNIA JOURNAL OF...specified. ** See 'Other metals.' closing of the lead-zinc-silver mines in Inyo County, and caused sharp...| a ea 23M 5 2 a c 2 3 4) uj 1T3 _; 3 —El' 2 2 2 « £ a .5 =5 °° ^ 3 sj fcC a! .2.2 J3...California exhibit studies. Clark Mineral inventory of El Dorado County general study of mining operations in the |  | Carrillo-Rosúa, Javier, Morales-Ruano, Salvador, Roberts, Stephen, Morata, Diego, Belmar, Mauricio (2021) Application of the Mineralogy and Mineral Chemistry of Carbonates as a Genetic Tool in the Hydrothermal Environment. Minerals, 11 (8) 822 doi:10.3390/min11080822 | Journal (article/letter/editorial) | | including: volcanic-hosted Au-Cu epithermal at El Dorado in La Serena; “Chilean Manto-type” Cu(-Ag), at...hosts the studied samples. Palai-Islica (Spain) El Dorado (Chile) Quebrada Marquesa (Chile) Quebrada Marquesa...and central the studied deposits: (2) Eldeposits: Dorado-epithermal Au-Cu volcanic-hosted-, (3) Quebrada...Marquesa—“Chilean Manto-type” Chile showing the studied (2) El Dorado-epithermal Au-Cu volcanic-hosted-, (3) Quebrada...replacing calcite (Figure 2d). 3.2. El Dorado, La Serena, Central Chile El Dorado is an intermediate sulfidation |  | | Book | | EL DORADO IN BRITISH COLUMBIA De GOLD RUSH! EL DORADO IN BRITISH KATHRYN COLUMBIA BRIDGE Pp CANADIAN...Publication Bridge, Kathryn Anne, author Gold rush! : El Dorado in British Columbia / Published by the Canadian...is a souvenir of the exhibition Gold Rush! - El Dorado in British Columbia, which was organized by the...settled with vigilante justice. co Gold Rush! - El Dorado in British Columbia offers an engaging and detailed...extraction was also a concern, both then and now. El Dorado is an ancient myth. Its influence, however, persists |  | | Report (issue) | | Diamonds occur in the placer gravels at Hamburg El Dorado County Forest Hill. About : sixty have been... 2. GRAPHITE— Plumbago— Black Native carbon, Lead. C. Hexagonal, rhombobedral. Commonly in scaly...about eight miles southeast the old Alisal mine on El of Salinas, in the foothills of the Gabilan range...is of rare occurrence. lurides of gold, silver, lead found in the gold concentrates when not visil)le...Tellurides of gold occur, but they are quite subordinate lead or zinc. in quantity. Crystals, arborescent groups |  | | Journal (article/letter/editorial) | | cornwallite and cornubite. Figure 2. Scene of the El Dorado mine collapsed adit. LOCATION The copper mines...of over 1,000 tons of 6% chalcopyrite ore, the El Dorado (Dufay) mine, which produced one carload of high-grade...copper along the lower part of Spring Creek (El Dorado and Mohawk mines), contain ore composed of pyrite...workings are caved and inaccessible. El Dorado (Dufay) Mine The El Dorado mine, discovered in 1909, is located...electron microscopy. The results show that the El Dorado and Mohawk mines have a simple sulfide ore mineralogy |
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El Dorado, Sifontes Municipality, Bolívar, Venezuela