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In later times, Gold Harbour and Mitchell Inlet became the location of a modern mining operation, also called Tasoo or Tasu, but for iron rather than gold. In 1969, a local logger, Efrem Specogna and his brother-in-law, John Trinco made the initial gold discovery of the Specogna (Babe) Gold deposit west of Port Clements on Graham Island. By ...
It is the largest undeveloped gold deposit in Canada and one of the world's biggest copper-gold porphyry deposits. [5] [6] Though 2P reserves are significant (39 million ounces of gold, 214 million ounces of silver, 9.9 billion pounds of copper and 257 million pounds of molybdenum) they only represent about 65% of the mine's total resource of ...
A variety of gold deposits are formed in accretionary orogens, including orogenic gold deposits. [38] Orogenic gold deposits are typically located in metamorphosed fore-arc and back-arc regions, as well as in the arc [3] and show a close spatial relationship to lamprophyres and associated felsic porphyry dikes and sills. [39]
China says it has discovered the world’s largest known deposit of gold, estimated to be worth over $80bn (£63bn).. The deposit at the Wangu goldfield in central China could yield more than ...
The gold contents of all deposits averages 0.41 g/t Au, with the majority of worldwide deposits averaging less than 1 g/t Au. [2] The occurrence of native gold mineralization. Example from Kalgoorlie Australia. The contents of gold can appear in three different forms in these deposits: [2] Native gold; Electrum; Gold–bismuth–antimony ...
The Iskut Project includes the former high grade gold Johnny Mountain Mine and the copper-gold Bronson Slope deposit. The 2017 drill program confirmed the presence of a gold-bearing intermediate sulfidation epithermal system within the Quartz Rise lithocap.
Lode gold deposits, also referred to as orogenic gold are generally high-grade, thin, vein and fault hosted. They are primarily made up of quartz veins also known as lodes or reefs, which contain either native gold or gold sulfides and tellurides. Lode gold deposits are usually hosted in basalt or in sediments known as turbidite, although when ...
Economic extraction of SMS deposits is in the theoretical stage, the greatest complication being the extreme water depths at which these deposits are forming. However, apparent vast areas of the peripheral areas of these black smoker zones contain a sulfide ooze which could, theoretically, be vacuumed up off the seafloor.