Dateline Resources sees big upside in ore sorting technology at Gold Links
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Dateline Resources could capture a 40 per cent increase in gold grades from its Gold Links project in Colorado with positive results from an ore-sorting trial.
The historic Gold Links is known for its high grades, with some drill results running as high as 7 ounces to the tonne (223g/t).
Using ore sorting technology could bump its gold head grade up from 15.34g/t to 21.71g/t (a 41.6% improvement), the sort of grade only seen by a handful of modern mines.
49 per cent of the material sorted through the TOMRA ore sorting equipment in Sydney was reported as waste rock, removing material with a grade of less than 0.7g/t gold per tonne mined.
“The ore sorting results are in line with our expectations and have confirmed that the Gold Links ore is perfectly suited for this technology,” Dateline managing director Stephen Baghdadi said.
“The amount of gold that was left in the waste was 2.2g/t, which equates to less than 0.7g/t per mined tonne.
“By upgrading high-grade material from the veins to an even higher grade significantly enhances the potential of Gold Links by reducing processing costs and increasing the returns per tonne.
“The company intends to conduct an additional test to determine if the results can be further improved by using an ore sorter that is capable of both XRT and Laser in a single run.”
Ore sorting improves the potential to conduct larger scale mechanised mining in high grade, narrow vein deposits like Gold Links, which brings potential safety and productivity improvements for narrow vein miners.
By sorting the ore to capture higher grade material, a miner such as Dateline can extract larger widths without diluting the ore with waste rock.
Gold Links’ rich 2150 vein produced about 50,000 ounces of gold between 1885 and 1948, with the Sacramento vein also a historic producer.
While Gold Links has been on Dateline’s books for a few years, the US focused explorer recently expanded with the transformative purchase of Barrick Gold Corp’s Colosseum Gold Mine.
Located in California, Colosseum produced an impressive 344,000 ounces of gold from a historic 1.1 million ounce resource between 1988 and 1993.
Early indications show gold rich breccia pipes that contained Colosseum’s historic workings – shut when the price of gold dropped to just $US350/oz – continue for 530m below the historic resource.
This article was developed in collaboration with Dateline Resources, a Stockhead advertiser at the time of publishing.
This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.