Golden Giant Mine

Golden Giant Mine

The Golden Giant Mine was an underground gold mine in the Hemlo mining camp in Canada, located north of Lake Superior, midway between Sault Ste. Marie and Thunder Bay, Ontario near the town of Marathon.

History

Prospectors John Larch and Don McKinnon discovered gold in the Hemlo camp in the early 1980s, starting a staking rush not seen in Canada since the Klondike gold rush of the late 1800s. Two companies, Golden Sceptre and Goliath Resources, secured rights to a large land package in the area, and were subsequently acquired by Noranda.

Noranda permitted and built the Golden Giant mine in less than two years. With its first pour in April, 1985, the Golden Giant was the first mine in the camp to ship.

Peak production occurred in the early 1990s, approaching 500,000 oz per year. During its 21-year life, the mine produced over 6 million ounces of gold.

Ownership

Noranda formed Hemlo Gold Mines, Inc. to operate the mine. Hemlo merged with U.S.-producer Battle Mountain Gold in 1996. That company, in turn, was acquired by Newmont Mining, who currently own the property, in 2001.This mine also had great bug infestation often

Geology

The average grade of the ore was approximately 10 g/t (0.3 oz/t).

Operations

The mine was designed as a 3000-dmtpd (dry metric tonne per day) operation. With the Block 5 expansion, the mine shaft reached a depth of more than 5000 feet.

The mill was a conventional leach-CIP circuit. The ore was crushed to 3/8" with standard- and short-head cone crushers. The crushed material was fed to one of two grinding circuits (A-circuit = 3 ball mills, B-circuit = single ball mill). A-circuit was one of the first in the world to include the fully-automated Knelson (gravity) conctentrator. A second unit was added to the B-Circuit around the year 2000. Concentrate from the Knelsons was upgraded with a shaking table. That unit was replaced with the first Acacia concentrator installed in North America.

After grinding, the ore was fed to the leach circuit where the gold was dissolved. Dissolved gold was recovered in the carbon-in-pulp circuit. Once or twice per week the carbon was treated in a 15-tonne pressure Zadra strip process. Gold was recovered from the pregnant solution on stainless steel wool cathodes in the refinery.

From 1996 onward, much of the tailings were returned to the mine as pastefill backfill.

Current Operation

The mine ceased operation in 2005, and closed permanently in 2006. Reclamation of the site is underway.

External links

* [http://www.Newmont.com Official Newmont Site]


Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Golden Globe Award/Beste Nachwuchsdarstellerin — Golden Globe Award: Beste Nachwuchsdarstellerin Gewinner und Nominierte in der Kategorie Beste Nachwuchsdarstellerin (New Star Of The Year – Actress), die von 1948 bis 1983 die herausragendsten Schauspielleistungen des vergangenen Kalenderjahres… …   Deutsch Wikipedia

  • Golden Ticket Awards — Logo du prix de l édition 2007 Les Golden Ticket Awards sont des prix remis par Amusement Today, un journal sur le monde des parcs d attractions. Chaque année, le magazine donne ces récompenses après un sondage fait auprès des passionnés du sujet …   Wikipédia en Français

  • Texas Giant — Location Six Flags Over Texas Coordinates …   Wikipedia

  • List of Golden Sun characters — The protagonists of 2001 s Golden Sun, clockwise from top: Mia, Ivan, Isaac and Garet. The following is a list of characters from Camelot Software Planning s Golden Sun series of console role playing games, consisting of 2001 s Golden Sun for …   Wikipedia

  • Birthing the Giant — Infobox Album | Name = Birthing The Giant Type = studio Artist = Cancer Bats Released = June 6, 2006 (CAN) September 5, 2006 (USA) December 4, 2006 (UK) Recorded = 2005 2006 Genre = Hardcore punk, metalcore, alternative metal Length = 40:10 Label …   Wikipedia

  • Manitouwadge, Ontario — Manitouwadge   Township   …   Wikipedia

  • Marathon, Ontario — Marathon   Town   Motto: Built On Paper Laced With Gold! …   Wikipedia

  • Newmont Mining Corporation — Type Public (NYSE: NEM, TSX: NMC) …   Wikipedia

  • List of characters in the Banjo-Kazooie series — This is a list of characters from the Banjo Kazooie series of video games. Main characters Banjo Banjo is a rare anthropomorphic brown honey [ [http://web.archive.org/web/19990220041733/www.rareware.com/recent/games/banjo/castlist/ Rarewhere:… …   Wikipedia

  • Characters in the Deltora Quest series — The Deltora series features a wide line of characters, both important and minor. The series also features many different monsters and creatures that appeared in all of the many different books. This article is a list of the many different… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”