In April, U.S. Sen. Tina Smith introduced a bill to protect the Boundary Waters wilderness, building on years of advocacy by U.S. Rep. Betty McCollum and support from Backcountry Hunters and Anglers, ...

From the column: "Given the lack of regulation and experience in Minnesota on high sulfide mines, it makes sense to take a cautionary approach." A worker holds a core sample showing a polymetallic ...

VANCOUVER, British Columbia, March 27, 2023 (GLOBE NEWSWIRE) -- Monument Mining Limited (TSX-V: MMY and FSE: D7Q1) ("Monument" or the "Company") is pleased to update the progress at the Selinsing ...

Toronto, Ontario--(Newsfile Corp. - February 10, 2026) - pH7 Technologies is proud to participate in PDAC 2026 for the third consecutive year, showcasing its breakthrough technology for heap leaching ...

Mineral exploration is taking place throughout this most critical and legendary area of northeast Minnesota — the headwaters of the Rainy River watershed and the headwaters of Lake Superior, separated ...

Copper-containing rock hosts only a small percentage of copper. Most of the rock is unwanted material, typically referred to as gangue. Depending on to what minerals the copper is bound, the rock is ...

An analysis of sulfide ore deposits from one of the world's richest base-metal mines confirms that oxygen levels were extremely low on Earth 2.7 billion years ago, but also shows that microbes were ...

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Nickel sulfide processing has long attracted significant attention due to its critical role in metallurgical industries and advanced battery production. The complex composition of polymetallic ...

Scientists probe Canadian sulfide ore to confirm microbial activity in seawater 2.7 billion years ago An analysis of sulfide ore deposits from one of the world’s richest base-metal mines confirms that ...