View of mine and plant, 2007Fraser's Pit of Macraes Mine in 2008
Map
Macraes Mine in East Otago is New Zealand's largest gold mine,[1] and consists of a large scale opencast mine[2] opened in 1990, and a newer underground mine, opened in 2008.[3] It is situated close to the settlement of Macraes Flat and is owned by OceanaGold Corporation.
Gold production averaged 193,000 Troy ounces/year for 2008 through 2010. Ore grades have been declining, to 1.26 grams/tonne in 2010, but recoveries have improved slightly to 81% of the gold contained in the ore, in 2010. From 1990 through 2014, gold production totaled about 4 million ounces.[4] The mine's 5 millionth ounce was poured in July 2019.[5] The company claims a gold reserve of 1.53 MM troy oz Au plus a larger subeconomic gold resource; and expects the mine to operate at least through 2021.[3][6] As of July 2019, over 5 million ounces of gold have been extracted.
The gold bearing rocks were formed by the orogenic processes that created the Otago Schist belt.[7]
^Hartley, Simon (28 June 2018). "Another 10 years for Macraes". ODT. Retrieved 14 September 2018.
^"New Zealand". Oceana Gold. 2008. Retrieved 29 May 2010.
^ abMacraes Mine at Oceana Gold
^Oceana Gold Business Review, June 2011.
^Rae, Sally (20 July 2019). "Going for gold and loving it". Otago Daily Times Online News. Retrieved 23 July 2019.
^"OceanaGold eyes Macraes mine life extension". www.mining-journal.com. 22 October 2018. Retrieved 23 July 2019.
^Craw, Dave. "Macraes Mine, East Otago, New Zealand,". Geology Department, University of Otago. Retrieved 30 May 2022.
"Another 10 years for Macraes". ODT. Retrieved 14 September 2018. "New Zealand". Oceana Gold. 2008. Retrieved 29 May 2010. MacraesMine at Oceana Gold Oceana...
170°25′48″E / 45.38167°S 170.43000°E / -45.38167; 170.43000 Macraes, formerly known as Macraes Flat, and known in Māori as Oti, is a town in the Waitaki...
Site142/28: Stone Ruin Macraes Flat: For Macraes Mining Company (Report). Dunedin. Petchey, P. G. (2005). "Golden Bar MineMacraes: Report for Oceana Gold...
workshops in Bedford. Macrae and Clarke soon agreed to cooperate on the design of a new weapon, but they quickly abandoned a towed mine as impractical. Instead...
naval mine is a self-contained explosive device placed in water to damage or destroy surface ships or submarines. Unlike depth charges, mines are deposited...
1989 in New Zealand, then known as the Macraes Mining Company Ltd. The company commenced gold production at Macraes in 1990. The company was later renamed...
large hard-rock mines (Martha Mine and MacraesMine), several medium-sized alluvial operations, and a large number of small alluvial mines. The Waikato North...
announces transfer of all Timberlands managed forests to DoC. 18 August — Macraesmine extension turned down by Sandra Lee-Vercoe, the Minister of Conservation...
mined in the Coromandel and Kaimai Ranges (especially the Martha Mine at Waihi), Westland, Central Otago, and Eastern Otago (especially MacraesMine)...
target is the mineralised shear zone, similar to the Hyde-Macraes shear zone which hosts MacraesMine. Martin, A.P.; MacKenzie, D. (2016). "Rise and Shine...
It was mined until 1990 at King Island, Australia, Glenorchy in Central Otago and Macraes Flat in North Otago and also at The Golden Bar mine at Dead...
Jefferis' assistant, Stuart Macrae, using an Alka-Seltzer tablet, which was found to dissolve at a predictable rate. Each mine contained 15 lb (7 kg) of...
Major Millis Rowland Jefferis – for whom Clarke and Macrae had developed the limpet mine – with Macrae as his number two. At MD1, Clarke was able to complete...
Casey gets caught on the ocean floor when the probe is blown up by a planted mine and exposed to a massive dose of radiation which would have killed him. However...
Pound 1910, pp. 14–15. Macrae 1980, pp. 18–25. Macrae 1980, pp. 25–28. Macrae 1980, pp. 28–38. Macrae 1980, pp. 38–39. Macrae 1980, pp. 39–48. McVey 2016...
S2CID 198241041. Whitaker, A.H. & Meads, M.J. (1993) Macraes Mining Company Limited, globe Mine development project: A survey of the terrestrial invertebrates...
suffocate the engine and possibly the crew – or an explosive charge or anti-tank mine. By August 1940, the War Office produced training instructions for the creation...
five brothers and one sister. At 14, he left school to work down the coal mine alongside his father. He started acting by chance, when he went to meet a...
The first example of naturally occurring graphene is reported, at a gold mine in South Africa. 19 July – Researchers report the discovery of self-healing...
Minimi light support weapons, grenades, M18-A1 Claymore anti-personnel mines, Harris radios, specialised binoculars and telescopes, night vision equipment...
Inspector (uncredited) Strictly Confidential (1959) – Inspector Shearing Make Mine a Million (1959) – Supt. James Violent Moment (1959) – Inspector Davis The...
colonel in the regular army. Sykes and his corps served in the Battle of Mine Run and in the Battle of Bristoe Station in the fall of 1863. In March 1864...
Co". Archived from the original on 2007-12-01. Retrieved 2008-02-07. "Macraes Blue Book". "Mueller Industries". Motherson Sumi Systems "Our History -...
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