2020-8-4 · Two diamond drills are turning at Mt. Hinton, an area of high-grade gold and silver mineralization in Yukon''s Keno Hill district adjacent to Alexco''s property. Strategic plans a 7,000-metre drill program and Eaton expects that drilling could continue into early October this season.
2021-10-21 · There are strong indications of epithermal gold-silver mineralization, with potential Maricunga-style porphyry gold-copper mineralization at depths (Fig. …
Epithermal paleosurfaces. Miner Deposita DOI 10.1007/s00126-015-0614-z INVITED PAPER Epithermal paleosurfaces Richard H. Sillitoe 1 Received: 24 July 2015 / Accepted: 24 August 2015 # Springer-Verlag Berlin Heidelberg 2015 Abstract Many active volcanic-hydrothermal and geothermal aggradation or degradation, can profoundly affect deposit evo ...
2007-12-11 · Life Cycle of Gold Deposits Near the Northeast Corner of Yellowstone National Park—Geology, Mining History, Fate 433 Significance of the Homestake Deposit The term "Homestake deposit," as used herein, refers to all gold-silver-copper-enriched intervals within, and genetically associated with, the Homestake breccia (fig. 2). This deposit was
2011-11-28 · Low potential exists for silver, lead, zinc, gold, and copper associated with vein-type and porphyry-type mineralization in the west part of the wilderness. Moderate ... The Mount Hood Wilderness was established as a Primitive Area in 1931, and reclassified as a w ilderness on June 27, 1940.
Gold-silver mineralization took place during stages 3 through 5 with some gold introduced during stage 2. Alunite 40Ar/39Ar ages constrain epithermal mineralization to between ~2.6 and ~1.6 Ma.
2018-6-24 · Geochemical sampling works because it is fairly normal that large hardrock gold and silver deposits have a surrounding envelope of weak mineralization, also known as a dispersion halo. They are formed by "leakage" of mineralizing fluids into the surrounding rocks, and are best developed around large bulk-type deposits and those deposits ...
Significant "blue sky" potential along the 5 km strike length of the Cinco Minas epithermal silver-gold vein Of other exploration significance is the prospect named Cerro Colorado, located along the vein about 1,100 metres from the rich El Abra ore shoot and Cinco Minas Mine workings.
Hydrothermal fluids forming epithermal gold deposits are Au-saturated in most cases, whereas fluids of Carlin-type are Au-undersaturated. ..., 1.1 Mt Cu and > 350 kg Au. every year (Hedenquist et ...
2021-7-7 · GR Silver Mining Ltd. (TSXV: GRSL) (OTCQB: GRSLF) (FRANKFURT: GPE) ("GR Silver Mining" or the "Company") – is pleased to report assay results from the final drill holes to be incorporated into the resource estimation at the Plomosas Mine Area at the Plomosas Silver Project ("Plomosas Project") in Sinaloa, Mexico. These results represent wide intersections of predominantly gold and …
Korzeb, S., 2016, Evolution of Epithermal Gold-Silver Veins using AL and TI in Hydrothermal Quartz of the Oro Fino Mining District, Deer Lodge County, Montana: Presented at the Rocky Mountain Section, 68th Geological Society of America Annual Meeting, Moscow, Idaho, May 18, 2016. 2016: Presentation
2018-8-13 · Aben Resources Ltd. (ABN:TSX.V; ABNAF:OTCQB) whacked it out of the park on Thursday with the release of assays from the first hole of the summer drill program at Forrest Kerr, its property in the highly prospective Golden Triangle area play of northwestern British Columbia. Multiple high-grade zones . ABN''s 2018 drilling in the North Boundary, a new mineralized zone discovered at the end of ...
2021-1-13 · The Klaza Deposit has indicated resources of 4.5 Mt containing 686,000 oz gold and 14,071,000 oz silver at grades of 4.8 g/t gold and 98 g/t silver, and inferred resources of 5.7 Mt containing 507,000 oz gold and 13,901,000 oz silver at grades of 2.8 g/t gold and 76 g/t silver.
The Quartzville district has the largest production that can definitely be attributed to Sado-type veins, with 0.27 metric tons gold and 0.09 metric tons silver recorded (Brooks and Ramp, 1968), and possibly considerably more that is unrecorded (Munts, 1978).
2011-11-28 · Mount Hood Wilderness is low. Geochemical data suggest two areas of weak epithermal mineralization in the Zigzag Mountain part of the wilderness: (1) the Lost Creek-Burnt Lake-Cast Creek-Short Creek area on the north side of Zigzag Mountain where vein-type lead-zinc-silver
· The potential for near-surface mineral resources in the Mount Hood Wilderness is low. Geochemical data suggest two areas of weak epithermal …
The Tiger gold deposit, located in central Yukon, Canada, has an inferred resource of 8.28 Mt containing 289,400 ounces gold at an average grade of 1.09 g/t and an indicated resource of 7.15 Mt ...
2021-5-28 · Projects ("NI 43-101"), on the gold and silver mineralization for the Mercury One Property ("Property") that is located in the White Pine County of eastern Nevada, USA. The Property, which is in the Schell Creek Range, is bounded by the Becky Peak Wilderness area to the
2021-4-29 · TRW Systems Group, 1976, Study of Geothermal Prospects in the Western United States: TRW Systems Group Contract 954243, FINAL REPORT NO. 28455-6001-RU-00. Tschanz, C.M., and Pampeyan, E.H., 1970, Geology and Mineral Deposits of Lincoln County, Nevada: Nevada Bureau of Mines and Geology Bulletin 73, 206 p.
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2020-2-11 · Most recently I have worked for Klondex Gold and Silver at the Fire Creek Exploration Project, a low-sulfidation epithermal deposit in mid-Miocene volcanics, which has many things in common with my the field area for my M.S.
A mineral survey of the Mount Hood Wilderness, Oregon, was conducted. Geochemical data indicate two areas of substantiated mineral-resource potential containing weak epithermal mineralization: an area of the north side of Zigzag Mountain where vein-type lead-zinc-silver deposits occur and an area of the south side of Zigzag Mountain, where the upper part of a quartz diorite pluton has ...
Gold-silver mineralization took place in stages 2-5 associated with sulfides, sulfosalts, tellurides, as electrum and native gold. Hydrothermal events were by followed by near surface supergene alteration and fault reactivation that created intensely fractured/gouge-rich fault zones.
The Silver Queen gold-silver property consists of 17 crown-granted and 45 tenure claims covering 18,851.76 hectares in the Omineca Mining Division, south of Houston, British Columbia. The property is located on the all season maintained road to Huckleberry mine at Owen Lake - 43 km south of Houston BC. Located in the heart of the Skeena Arch ...
quartz vein had visible ruby silver and other sulfides associated with a small adit in the hanging wall. corcoran canyon is a volcanic-hosted, low-sulfidation, silver-gold, epithermal system extending for more than 5. 5 km along a northeast-trending structural zone defined by alteration, veining, gold-silver mineralization, faulting and intrusions.
The world-wide interest in gold that has characterized mineral exploration in the 1980s has had a profound effect on the focus and style of geophysical prospecting. In the 1950s and 1960s, direct detection methods (chiefly airborne and ground electromagnetics (EM)) were applied widely in the search for massive sulphide-hosted base-metal ...
2021-1-1 · 1. Introduction. Different volcanic structures are genetically, spatially and temporarily associated with ore deposits (Sillitoe and Bonham, 1984).Volcanism is usually concomitant with hydrothermal systems driving the heat exchange among the magmatic reservoirs, the feeding system host rocks and the overlying volcanic deposits (e.g., Villasantes-Marcos et al., 2014).
We describe the complex structure in the highest (now mined-out) levels of the world-class Martha Hill gold-silver deposit, Coromandel peninsula, which is hosted in late Miocene andesitic rocks. A northeast-striking block of rock 360 m long and up to 100 m wide was occupied by a complex vein network dominated by northeast-striking gold-silver lodes up to 30 m thick.
The largest deposit of Comstock type in the tract is the Oregon King mine, Jefferson County, Oregon, which produced 0.075 metric tons of gold, 0.72 metric tons of silver, and small amounts of copper and lead (Libby and Corcoran, 1962). It is not large enough to fit the Comstock grade-tonnage model.
2003-7-1 · Certified in Wilderness First Aid and CPR. ... core logging, target generation and drilling program design. Also, target generation for gold, Ni and VMS style …
2019-9-12 · Slater pointed out that his workforce can drive through the wilderness to Big Red on a dirt road, which is a big plus in these rough-hewn mountains. The drive is worthwhile: Past and present surveys show that Libero''s exploration zone is heavy …