Jul 21 2019The Carlin Unconformity or Carlin Trend is a geologic feature in northeastern Nevada which represents a period of erosion or non-deposition likely associated with a collision between a tectonic crustal block called a terrane and the North American Plate The collision occurred during the Mississippian Period about 350 million years before present
Obtener precioActive Gold Mines in the United States Carlin Trend Gold Mine The Carlin Trend is a series of pit gold mines owned by the Newmont Mining Corporation near Elko Nevada The mine series consists of 13 open-pit mines and four underground ones Newmont started the Carlin operation in 1965 after discovering the deposits in 1961
Obtener precioResources and reserves on the Carlin Trend exceeded 31 million ounces of gold as of 2015 (Barrick 2016 and Newmont 2016) Gold continues to be found on this productive trend Recent developments in the northwest and central parts of the trend include the discovery of the Arturo deposit significant expansion of the Leeville and Turf deposits development of the Exodus and Pete Bajo deposits and
Obtener precioJun 18 2016The Carlin Unconformity or Carlin Trend is a geologic feature in northeastern Nevada which represents a period of erosion or non-deposition likely associated with a collision between a tectonic crustal block called a terrane and the North American Plate The collision occurred during the Mississippian Period about 350 million years B P
Obtener precioThe Carlin Trend part of what is also known as the Carlin Unconformity is 5 miles (8 km) wide and 40 miles (60 km) long running northwest-southeast has since produced more gold than any other mining district in the United States The trend surpassed 50 000 000 troy ounces (1 600 t) of gold in 2002
Obtener precioApr 11 2019The Carlin Unconformity or Carlin Trend is a geologic feature in northeastern Nevada which represents a period of erosion or non-deposition likely associated with a collision between a tectonic crustal block called a terrane and the North American Plate
Obtener precio) as some indirect evidence has been found in natural systems For example it has been suggested that hydrocarbons may have contributed to the transport of gold in the Carlin-type deposits in Nevada (Emsbo and Koenig 2007 Emsbo P Koenig A E (2007) Transport of Au in petroleum evidence from the northern Carlin trend Nevada
Obtener precioCarlin-type gold deposits in north-central Nevada occur in a region that was the locus of igneous and/or hydrothermal activity over time and the overprinting of silicification associated with metamorphism base metal mineralization barren jasperoid and post-ore alteration hinders exploration efforts
Obtener precioThe "Carlin Unconformity " or Carlin trend is a geologic feature that represents a period of erosion or non-deposition likely associated with a collision between a tectonic crustal block called a terrane and the North American Plate
Obtener preciosamples indicate Carlin-type pathfinders are anomalous in most altered rock types and structures where sampled at Adobe Carlin-5 (As Hg Sb Tl S) The highest Arsenic values occur within silicified and hematite altered conglomerates of the Elko Formation and along the Perm/ Miss Unconformity within
Obtener precioNov 10 2011Mining by Newmont began in 1965 the area has since become one of the richest gold fields in the world Open pit mining dominates the Carlin Trend over its five by 40 mile area although some underground operations have been formed in higher grade areas
Obtener precioat the northern end of the Carlin trend General Description This site is in post-closure monitoring The site consists of one and a lower tuff unit within the Buttercup/Carlin Formation all of which An angular unconformity separates the older and younger bedded volcanic units the older beds dip 10 to 30 degrees southeast and the
Obtener precioTarget Carlin-type gold mineralization hosted along the Mississippian/Devonian unconformity Status Available for Joint Venture Location The Diamond Point Project is located in the prolific Carlin Trend in Nevada approximately 35 kilometers (22 miles) southeast of Gold Standard Ventures evolving Railroad-Pinion district and 26 kilometers (16 miles) northwest of Kinross Gold's Bald Mountain
Obtener precioindicate Carlin-type pathfinders are anomalous in most altered rock types and structures where sampled at Adobe • Carlin-5 (As Hg Sb Tl S) • The highest Arsenic values occur within silicified and hematite altered conglomerates of the Elko Formation and along the
Obtener precioAt Beaver Peak near the Carlin Trend of gold deposits it contains synorogenic conglomerate deposits associated with emplacement of a regionally extensive 1-km-thick tectonic wedge that is floored by the Coyote thrust Normal marine conodont biofacies throughout the Strathearn Formation suggest middle shelf or deeper depositional environments
Obtener precioPyrite - Carlin Unconformity - Gold mining in Nevada - Sediment - Gold - Arsenopyrite - Nevada - Arsenic - Antimony - Mercury (element) - Thallium - Barium - Hydrothermal circulation - Silt - Carbonate rock - Silicate minerals - Carbonate minerals - Dolomite (mineral) - Jasperoid - Clay minerals - Feldspar - Great Basin - American Geosciences Institute - Ore - Ore genesis
Obtener precioThe Carlin Unconformity or Carlin Trend is a geologic feature in northeastern Nevada which represents a period of erosion or non-deposition likely associated with a collision between a tectonic crustal block called a terrane and the North American Plate The collision occurred during the Devonian Period about 350 million years B P
Obtener precioAthabasca Basin (Canada) Unconformity-Type Uranium Deposits Exploration Model Current Mine Developments and Exploration Directions $ 10 00 Add to cart The Drewsey-Juntura Graben a Middle to Late Miocene Synvolcanic Graben Malheur and Harney county Oregon $ 10 00 Add to cart
Obtener precioDas Gebiet Carlin Trend oder auch Carlin Unconformity genannt befindet sich im Nordosten von Nevada Bereits in den 1870er Jahren wurde in diesem Gebiet Gold gefunden Zwar wurden immer wieder Goldvorkommen lokalisiert dennoch waren diese fr einen wirtschaftlich rentablen Abbau zu klein bzw die Grade zu gering
Obtener precioThe concentration of Zn re-calculated for the digested solid was 0 20 wt % in reasonable agreement with the semi-quantitative results by EDS Considering that the total mass of the above sample was 3472 g over a time of 5 days 7 g of Zn were transported by 15 ml of oil
Obtener precioThe Carlin Unconformity or Carlin Trend is a geologic feature in northeastern Nevada which represents a period of erosion or non-deposition likely associated with a collision between a tectonic crustal block called a terrane and the North American Plate
Obtener precioL'un des derniers grands gisements est le Carlin Unconformity (ou Carlin Trend ) une formation gologique dcouverte au Nevada (tats-Unis) en 1961 Plus rcemment la Guyane et le Surinam ont aussi connu des afflux d'orpailleurs et l'arrive de quelques grands groupes
Obtener precioJan 30 2020Larus (19 claims) is a Carlin-style gold system along the Cortez Trend 3 kms NW of the Mt Hope Molybdenum project Rock-chip geochemical samples have yielded up to 3 2 g/t Au Rock-chip geochemical samples have yielded up to 3 2 g/t Au
Obtener preciocut to simulate diamond drill core The Great Basin Science Sample and Records Library houses many boxes of core and cuttings from various mineral oil geothermal and water exploration holes drilled in the State Slabs of a few different background rocks provide contrast with the Nevada-shaped pieces
Obtener precioThe Carlin Trend part of what is also known as the Carlin Unconformity is 5 miles (8 km) wide and 40 miles (60 km) long running northwest-southeast has since produced more gold than any other mining district in the United States The trend surpassed 50 000 000 troy ounces (1 600 t) of gold in 2002
Obtener precioSP-50 Carlin-type Gold Deposits by Daylight by Caplight and by the Caetano Caldera - Leeville Gold Mine Carlin Trend Pipeline-Cortez Hills Gold Mines Caetano Caldera (2009) $45 00 SP-51 Old gold Districts New gold Mines the importance of unconformity karst and breccias as ore controls
Obtener precioCarlin Trend (Nevada Stati Uniti) Un grande scavo presso le miniere d'oro Twin Creeks a Carlin Trend Per oltre un centinaio di anni i cercatori d'oro degli Stati Uniti Occidentali hanno completamente sottovalutato una delle miniere d'oro pi ricche del mondo
Obtener precioThe Carlin Unconformity History of Carlin A collision of tectonic crustal block and the North American Plate occurred around 350 million years ago and this collision created the temperatures and pressure which produced the geologic forces that made Carlin-type gold possible
Obtener precioJun 15 2018What are a few of the trends that you see in the future of Mineral Exploration? Atoka Gold Carlin Trend gold Interview Nevada premium Athabasca unconformity uranium deposits RIRG's (reduced intrusive related gold) deposits and layered mafic intrusion Ni-Cu-PGM deposits With Oil and Gas his experience is primarily in the Madison
Obtener precioMar 01 2004Studies in the Beaver Peak (BP) area of the Tuscarora Mountains Nevada near the northern Carlin Trend of large gold deposits have shown that the Strathearn Formation focus of this paper contains two major synorogenic conglomerate horizons
Obtener precio