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VANCOUVER, British Columbia, Aug. 19, 2020 GLOBE NEWSWIRE -- Candente Gold Corp. TSXVCDG Candente Gold andor the Company is pleased to advise that Sun River Gold Sun River has made the final payment of US111,000, to increase their ownership in the Mexico Mine Tailings at El Oro Mexico, such that the companys NPI will be reduced from 10 to 5 after the first US1,500,000 is received by the Company.
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Get DetailVANCOUVER, British Columbia, Aug. 19, 2020 GLOBE NEWSWIRE -- Candente Gold Corp. TSXVCDG Candente Gold andor the Company is pleased to advise that Sun River Gold Sun River has made the final payment of US111,000, to increase their ownership in the Mexico Mine Tailings at El Oro Mexico, such that the companys NPI will be reduced from 10 to 5 after the first US1,500,000 is received by the Company.
The Mexico Mine Tailings contain an Inferred Resource of 1,267,400 Tonnes grading 2.94 Au gt, 75.12 Ag gt containing 119,900 ounces of gold and 3,061,200 ounces of silver.
Sun River has the option to acquire 100 of the Tailings Project by making staged payments totalling US300,000 paid, bring the tailings into commercial production by October 31, 2021, and grant to the Company a 10 NPI, Life of Mine royalty the Candente Royalty as well as the Municipalitys 8 NPI on production from the properties. Sun River had the right to reduce the NPI payable to the Company to 5 by paying an additional US200,000 in payments now paid.
Candente Golds subsidiary, CCM El Oro Jales, has an agreement with the municipality of El Oro which provides the Company the right to recover all available gold and silver from the tailings deposit and pay to the Municipality of El Oro an 8 Net Profits Interest NPI. Candente Gold also retains the first US1.5M from the 8 NPI payable to the Municipality. Sun River must make all NPI payments to the Municipality.
Jim Bradbury, partner in Sun River Gold, Registered Professional Metallurgical Engineer in the State of Arizona, is considered the Qualified Person for the content of the Internal Study. The metallurgical test work has been conducted by Minerals Technology LLC, a recognized metallurgical testing laboratory located in Tucson, Arizona whose clients include Florence Copper, ASARCO and BASF Mining Solutions.
Note Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability. All figures have been rounded to reflect the accuracy of the estimate. For more information see National Instrument 43-101 Technical Report on the Inferred Mineral Resource Estimate of the Mexico Mine Tailings prepared by Nadia Caira, P.Geo. and Allan Reeves, P.Geo., dated August 25, 2014 with an effective date of July 8, 2014 available at www.sedar.com.
About Candente GoldCandente Golds flagship asset is El Oro, a district scale gold project encompassing a well-known prolific high-grade gold dominant silver epithermal vein system in Mexico. The project covers 20 veins with past production and more than 57 veins in total, from which approximately 6.4 million ounces of gold and 74 million ounces of silver were reported to have been produced from just two of these veins Ref. Mexico Geological Service Bulletin No. 37, Mining of the El Oro and Tlapujahua Districts. 1920, T. Flores.
Aug 19, 2020nbsp018332An open pit mine in sub-Saharan Africa is operating in a jurisdiction where relations are tense, there is artisanal mining and water is always an issue. The tailings dam seems sound for the moment but may become an issue in the years to come. Communities live downstream from both the pit and tailings dam, and allegations of pollution are routine.
Candente Gold is dedicated to being a responsible Community partner participating in Shared Value Initiatives.
Imagine a big hole in the ground, similar to the one pictured above. Now imagine that pit filled with up to 10 billion tons of tailings 8212 waste that8217s derived from mining 8212 that will remain there forever.
It8217s a reality that isn8217t exactly far-fetched. If a large 8212 and controversial 8212 copper mine is built in Alaska8217s Bristol Bay, what remains will become a lasting part of the landscape. These potential dams could be among the biggest in the world, but they8217re by no means the first. So what, exactly, are these man-made storage structures you8217ve probably never even heard of
The contents of the tailings themselvesdepend on what mineral is being mined, though the process of creating them is generally similar. According to Dave Chambers,an engineer and geophysicist Center for Science in Public Participation, more than half of the material removed from minesis cast away immediately.
The ore-containing material is then processed, 8220which means grinding it up to a very small particle size, and then using some chemical additives to remove the material you want,8221 Chambers told FRONTLINE. 8220That material is usually less than 1 percent of the stuff you8217re usually putting through the processing. So you usually end up with a lot of waste.8221
Apr 23, 2019nbsp018332Re-mining tailings. Finally, there is the option to re-mine legacy tailings. This is possible through using new techniques to recover more valuable minerals, as is currently being achieved in Australias Northern Territory gold mines. Meanwhile, re-mining old tailings for metals that were previously ignored or discarded, like lithium ...
8220The minerals that were trying to mine are what are called sulfide minerals,8221 Chambers explained in our film Alaska Gold. 8220The most common sulfide mineral is iron sulfide, pyrite. And what happens when you expose pyrite to oxygen and to water is that it breaks down chemically into a weak sulfuric acid. That acid, in turn, will dissolve some of these other accompanying sulfide minerals that contain lead, zinc, cadmium, selenium, arsenic, and a whole host of other things8221 that can be dangerous for the environment.
There is no ideal tailings dam design because each environment has different needs and obstacles. But there8217s some consensus that the type of design known as 8220upstream8221 is both the cheapest to build and the most susceptible to failure. This is because, says Chambers, 8220you can actually use 8230 tailings for physical support,8221 reducing the cost of building materials. But because the tailings are mixed with water, they can be unstable structurally.
A caution about tailings is that they may contain the residue of mining chemicals, radiation, and sometimes, especially in gold mining areas, arsenic arsenic is actually a metal found in rocks and can be very concentrated in gold mining areas. Tailings are not the only areas you want to hunt when looking for gem materials.
For more, including diagrams, on these methods and others, see this report PDF.
An extensive 2001 study PDF by the International Commission of Large Dams and the United Nations Environmental Programme found that, on average, one major tailings dam incident occurs each year, although that figure doubled between 1995 to 2001.
It is estimated there are at least 3,500 tailings dams around the world. But as there are around 30,000 industrial mines, the number of tailings dams is likely to be much higher. Tailings dams can be huge in size, as big as lakes, and reach 300 metres high.
Dec 19, 2017nbsp018332For example, mining experts say there is no way to insure against the failure of wet tailings disposal dams, like the Samarco dam that failed in 2015 Brazils worst environmental ...
Aug 06, 2020nbsp018332Moreover, gold mining companies Gold Fields and Barrick have welcomed the Standard as a significant step forward for the safer management of tailings storage facilities TSF. As a member of the ICMM, Gold Fields helped formulate the Standard, fully endorses it and will now commence with its implementation through its ICMM membership commitments.
Aug 19, 2020nbsp018332The Mexico Mine Tailings contain an Inferred Resource of 1,267,400 Tonnes grading 2.94 Au gt, 75.12 Ag gt containing 119,900 ounces of gold and 3,061,200 ounces of silver.
Aug 06, 2020nbsp018332GOLD mining companies Barrick Gold and Gold Fields welcomed the launch on Wednesday of the Global Standard on Tailings Management which aims to prevent tailings dam disasters, such as the Brumadinho event in 2019 in which more than 250 people died as a result of a dam breach at a Vale iron ore mine in Brazil.. The new standard establishes the first global standard on tailings
Jul 30, 2012nbsp018332Now imagine that pit filled with up to 10 billion tons of tailings waste thats derived from mining that will remain there forever. Its a reality that isnt exactly far-fetched.
Understanding the historic mining methods that were used can help us determine the likelihood of how and where the gold will be there today. Dredge Tailings One of the easiest workings to identify are tailing piles left behind a bucket line dredge. These massive dredges were used to mine the gravels of many rivers in gold districts ...
Lancefield resource will feed into its Windarra Gold Tailings Project.
Any residual cyanide in the waste will be greatly reduced in a cyanide destruction process prior to the waste being discharged to the fully-lined tailings storage facility. This detoxification process has been adopted and utilized over the last 25 years by major gold mining companies worldwide.
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