• Igneous Geology of the Carlin Trend, Nevada: The ...

    provide limits on the depth of formation of Carlin trend gold deposits and on the degree of tilting and extension since about 40 to 36 Ma. Altered and mineralized Eocene dikes at . ii the Beast, Genesis, Deep Star, BetzePost, RodeoGoldbug, MeikleGriffin, and Dee deposits were shallowly emplaced as indied by their strongly porphyritic and commonly glassy, lithophysal, spherulitic, and ...

    Get Price
  • EVALUATION OF UNSATURATED FLOW IN MINE WASTE ROCK

    mine, which is a property of Barrick Gold, is loed on the Carlin Trend in northern Nevada. The objective of this work was to gain a better understanding of the mechanisms affecting unsaturated flow in the waste rock dumps and also to collect samples for future laboratory characterization. The field work discussed in this paper includes infiltration tests completed on the surface of the ...

    Get Price
  • Elephants in the Nevada Desert: Carlintype Gold Deposits ...

     · Carlintype gold deposits account for 9% of the world's gold production. These deposits are typically low grade, high tonnage and they appear to be largely confined to Nevada, gold was first discovered in Nevada in the 1870's, it wasn't until 1961 when Newmont discovered and developed the first mine along a structurally faulted area now known as the Carlin Trend.

    Get Price
  • COMPLETES BUSINESS COMBINATION AND ACQUISITION OF CARLIN .

    CONTACT GOLD CORP. COMPLETES BUSINESS COMBINATION AND ACQUISITION OF CARLIN TREND PROPERTIES IN NEVADA NOT FOR DISTRIBUTION TO UNITED STATES NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES Toronto, Ontario (June 7, 2017) – Contact Gold Corp. (the "Company" or "Contact Gold"), formerly Winwell Ventures Inc. ("Winwell"), is .

    Get Price
  • Geology and Gold Mineralization of the Genesis Deposit ...

     · The Blue Star/Genesis Mine is loed in northern Eureka County, Nevada, near the north end of the Carlin Trend. Prospecting activity in this area dates back to the 1870's. In 1929, turquoise was originally mined at the Blue Star Mine. Exploration and development for gold began in the 1960's, but production was limited. Open pit gold mining at the Blue Star deposit began in 1974, and at ...

    Get Price
  • The Carlin Trend, Nevada There's Holes in Them Thar Hills ...

    Carlin Trend, Nevada There's Holes in Them Thar Hills A rush for invisible gold leaves visible scars in the mountains. Range after rocky range, the mountains of northern Nevada soar above the arid flats. From the air their sagebrush cloaks seem as soft as crumpled velvet. Suddenly a series of gigantic holes looms below, so huge that if they ...

    Get Price
  • Nevada Gold Mines, US

    Openpit mines remain the major source of Carlin Trend ore. Carlin is the original pit but Gold Quarry, which opened in 1985 and has been supplemented by the Tusc satellite pit since 1994, is the largest. Other major pits have been Genesis and Post, while Bootstrap, Beast, Lantern and Sold were opened in 1995. Mining is conventional, using ...

    Get Price
  • Emigrant Springs Gold Mine Near Carlin, Nevada | The Diggings™

    Carlin, Nevada. The Emigrant Springs Gold Mine is near Carlin, Nevada. Historically the site has been part of the Carlin Trend Mining District. The site was first discovered in 1982. The Emigrant Springs Gold Mine is a surface mining operation. The Great Basin of the Intermontane Plateaus characterize the geomorphology of the surrounding area.

    Get Price
  • Top 5 Most Prolific Gold Mines in the World | DocumentaryTube

    In Carlin Trend, however, miners discovered hot springs containing dissolved gold deposits that metal into the sediment in fine particles that are difficult to see even with a microscope. In wasn't until 1961, when John Livermore, set out a search of this invisible gold after reading a paper a year ago. Mining began in 1965, and since then, the area has become one of the richest fields in ...

    Get Price
  • Pilot Gold Reports Weighted Average of % For Column ...

    Gold extraction is relatively insensitive to particle size, and can be projected out to 80% passing 150 mm (6 inch) particle size, simulating run of mine conditions, without significant loss of gold recovery. Twentyfour coarse bottle roll tests (target 80% passing 10 mesh or mm particle size) produced a weighted average* % gold extraction. If only the column test set of 20 composites ...

    Get Price
  • Timing Constraints of Gold Mineralization along the Carlin ...

    The Carlin trend in northeastern Nevada hosts several important individual deposits and, as of 1997, in excess of 100 Moz of gold had been identified along this trend (Teal and Jackson, 1997). The geology of Carlintype gold deposits has been summarized by Radtke (1985), Arehart (1996), and Hofstra and Cline (2000). Carlintype gold deposits comprise large disseminated deposits with the Au ...

    Get Price
  • sizes of gold | English examples in context | Ludwig

    High quality example sentences with "sizes of gold" in context from reliable sources Ludwig is the linguistic search engine that helps you to write better in English

    Get Price
  • Goldrich pyrite rims in a Carlin Au deposit: appliion ...

    in the northern part of the Carlin Trend, Great Basin, N. Nevada. As of 2000 the deposit had produced t of gold, with an average grade of 34 g/t Au (Heitt et al., 2003). The dominant ore mineral is arsenian pyritemarcasite, which rims (<5 μm width) diagenetic pyrite euhedra. The Deep Star sample used in this study,

    Get Price
  • Carlin GoldVanadium Project

    Loed on the prolific Carlin Gold Trend ("CGT") •Best gold producing structural trend in the US •CGT has delivered and will continue to deliver extraordinary gold production and deposits for years to come –>100M oz Au of past production; upwards of 200M oz in the future •Dominated by majors including Newmont and Barrick

    Get Price
  • GEOLOGY OF THE NORTHERN TERMINUS OF THE CARLIN TREND ...

    The northern part of the Carlin trend of gold deposits in northern Nevada—extending northwesterly from the Gold Quarry Mine to the Dee Mine (figs. 1 and 2)—is one of the richest and economically most important gold mining districts in the world since largescale gold mining began in 1965 (Christensen, 1996; Teal and Jackson, 1997). These deposits collectively are referred to as Carlintype ...

    Get Price
  • Trace elements in fluid inclusions of sedimenthosted gold ...

    the Carlin trend that contain highgrade gold in similar sedimentary host rocks. Results indie that both ore districts can be related to upper crustal hydrous magmatic intrusions, but are now exposed at different levels of erosion and formed at different distances from their magmatic fluid source. Fluid compositions are best explained by separation of a deep magmatic fluid into RbK ...

    Get Price
  • New model for how Nevada gold deposits formed may help in ...

     · The deposits, known as Carlintype gold deposits, are characterized by extremely finegrained nanometersized particles of gold adhered to pyrite over .

    Get Price
  • Distribution of Alteration and Mineralisation in Northern ...

    Distribution of Alteration and Mineralisation in Northern Carlin Trend Gold Deposits, Nevada ... PDF Size: . Unique ID: P; Share: Our site uses cookies. We use these to improve your browser experience. By continuing to use the website you agree to the use of cookies. Find out how these are used . Continue . AusIMM acknowledges the Traditional Custodians of the land on which we ...

    Get Price
  • Clay Alteration and Gold Deposition in the Genesis and ...

    inated gold deposits in the Carlin trend. Hausen et al. (1987) noted the occurrences of gold covered with illitie day. Bakken et al. (1989) found that day minerals predominating in altered rocks were 1M and 2M1 illitc, with variable amounts of kaolin itc, and concluded that during orestage hydrothermal alter ation 1M and 2M1 illitc grew at the expense of feldspar and smectite. Arehart et al ...

    Get Price