Conflicted Over Copper: PolyMet copper-nickel mine has …

The main features of the proposed mine include an open pit sulfide-ore copper-nickel mine; a transportation line to carry ore to a processing facility several miles away; and a tailings basin to hold the leftover processed ore. Throughout the environmental review and permitting processes, which have lasted more than a decade, tribal communities ...

Sulfide Ores: Characteristics and Economic …

Sulfide ores are ores in which minerals are found in chemical compounds with sulfur. Sulfide ores are of great importance in the mining and processing industry, as well as in metallurgy. The choice of ore enrichment method depends very …

Sulfide Ice Mining Pros And Cons Essay | ipl

We have been talking about the pros and cons of Sulfide ore mining in Minnesota and I do not believe that mining in Minnesota should be supported. Mining in Minnesota has been a huge detriment to Minnesota's wildlife. Sulfide-ore copper mining is happening just upstream of the boundary waters and is causing lots of damage to the animal habitats.

Sulfide-Ore Copper Mining and/or A Sustainable …

importance of mining is inflated relative to the size and importance of the amenity-based development that sulfide-ore copper mining may disrupt. This distorted picture comes from studies that focus only on the economy's exports (whether mining or tourism experiences) to the exclusion of other important facets of the economy.

What We Know About Deep-Sea Mining — and What We …

Mineral nodules on the seafloor in the Clarion-Clipperton Zone, a key area of interest for deep-sea mining. Photo by ROV KIEL 6000/GEOMAR. In the case of polymetallic nodules — which are currently the primary focus for deep-sea mining — mining vehicles would collect mineral deposits from the surface of the seabed, not unlike a tractor plowing a field, …

The Pros And Cons Of Pebble Mining

Sulfide Mining Pros And Cons Imagine drifting slowly on a canoe while fishing one of Minnesota's crystal clear waters on a beautiful, sunny day. Now imagine being interrupted by the loud, ongoing sounds of drilling and being told the fish were too dangerous to eat.

For Environmentalists, Mines Near Wilderness Are Too Close For

A couple is spending 365 days in the nation's most visited wilderness area to raise awareness of a sulfide-ore mining plan they say will put the watershed ecosystem in danger. Some locals disagree.

A Good Debate: Ground Control

The pros and cons of copper-nickel mining in northern Minnesota. Summer 2018. JUMP TO: ... The high-tech method required to extract copper-nickel, called sulfide mining, differs from iron ore mining in that it uses heat, pressure, and …

20 Pros and Cons of Mining

The pros of mining are that it significantly contributes to economic growth by increasing GDP and offering numerous job opportunities. Additionally, it plays a crucial role in extracting vital resources needed for various industries …

The Effects Of Sulfide Mining On The Environment | ipl

Sulfide mining is a form of hard rock mining. The goal of sulfide mining is to extract the metals found in sulfide ore. Most often, companies are looking for copper and nickel in the process of …

Metallic Sulfide Mining

What is metallic sulfide mining? Metallic sulfide mining — also known as hard rock mining — involves extracting valuable metals, like copper or zinc, from sulfide ores, which are rocks and sediments that contain minerals bonded with sulfur ions. To reach these ores, miners deplete the area's groundwater by pumping it out and then excavate ...

5 Compelling Reasons for Copper-Nickel Mining in Minnesota

The Federal Mine Safety and Health Administration (MSHA) sets health and safety standards to protect workers with exposure limits to air pollutants and water quality issues – and mining operations are required to maintain ongoing compliance for the duration of operations. Regulators aren't going to simply hand over the keys and say "See ...

The Potential Pros and Cons of Seabed Mining

Mining the sulfide fields disturbs a smaller geographic area. But the nearby hydrothermal vents are home to a diverse and sensitive biological community. Many of these organisms are still unknown to science, and may be harmed or …

CLIMATE CHANGE HEALTH Sulfide-ore mining AND …

sulfide-ore copper nickel (sulfide-ore) hardrock mining in Minnesota. Although the debate is not a new one, the landscape surrounding decisions regarding this type of mining within Minnesota's borders is dynamic and constantly changing. As 2021 was ushered in, so were new legisla-tive and legal efforts affecting sulfide-ore mining.

Sulfide Mining and Human Health

Sulfide mining (specifically copper-nickel sulfide mining) represents a significant departure from Minnesota's iron mining tradition. Sulfide mining can produce acid waste and sulfates that …

Should we mine copper and nickel in Minnesota

It's often used to ease concerns that a boom in so-called sulfide mining could pollute Lake Superior and the Boundary Waters Canoe Area Wilderness (BWCA) with toxic mine waste and acidic...

Defending the Boundary Waters from sulfide mine pollution

The following year, the Biden administration announced a 20-year moratorium on mining in 225,000 acres of the Superior National Forest that would protect the Boundary Waters from mining pollution. Although Twin Metals has brought a lawsuit to reinstate the leases, at this point the project cannot move forward.

The Pros And Cons Of Sulfide Mining | ipl

Sulfide mining is the mining of such ions. Companies, such as PolyMet and Twin Metals Minnesota, are fighting for the right to go to northern and northeastern Duluth where there is a …

Sulfide Mining Fact Sheet

Sulfide mining is different from traditional iron ore mines and taconite mining (sometimes referred to as ferrous mining). Sulfide mines have never been operated safely – no mine of

Sulfide Mining Pros And Cons

PolyMet, a new mining company would like to bring sulfide mining, also known as copper-nickel mining to Minnesota. This would involve the extraction of copper and various other metals from sulfide, hence the name. The sulfide that comes out of this type of mining can have serious consequences on the environment.

The Promise and Perils of Seafloor Mining

The metals lie in what are called seafloor massive sulfide deposits. They form as the result of a series of chemical reactions that start when seawater filters down through permeable ocean crust into rocks heated by magma below. ... Weighing the pros and cons. Some argue that seabed mining offers an alternative that could be less ...

20 Pros and Cons of Open Pit Mining

Pros And Cons Of Open Pit Mining. Are you aware that open pit mining is responsible for extracting around 90% of the world's mineral ores? This type of mining involves digging a large hole in the ground to access valuable minerals and metals. Open pit mining has been used for centuries, but it comes with both advantages and disadvantages.

Mining the Climate Crisis: The Pros and Cons of Copper

The community is invited to attend the next Rosenmeier Center for State and Local Government forum titled "Mining the Climate Crisis: The Pros and Cons of Copper-Nickel Mining in Minnesota" at 7 p.m. on Monday, April 29 in the Chalberg Theatre of Central Lakes College's Brainerd campus. Speaking will be Julie Lucas, Executive Director of ...

With copper-nickel mining uncertainty, how long will mining …

According to a review on Earthworks regarding safety at 14 copper sulfide mines: A peer-reviewed study of the track record of water quality impacts from copper sulfide mines found severe impacts ...

The Economics of Sulfide Mining: Benefits and Costs

This address was given by Dr. Tom Power, Professor Emeritus at the University of Montana about a week ago in Duluth. Dr. Power's lecture was presented by the Friends of the …

20 Pros and Cons of Subsurface Mining

Pros of Subsurface Mining. Resource Accessibility: Subsurface mining is essential for extracting minerals and ores that are deep below the Earth's surface. Without this method, certain resources like gold, diamonds, and zinc would remain inaccessible and unexploited, depriving economies of vital raw materials.

Choose this over sulfide mining: renewables, jobs and …

Across the United States, every sulfide mine in a water-rich environment has resulted in acid mine drainage and/or toxic metal pollution of lakes, streams or groundwater aquifers. That is a ...

Essential Pros and Cons of Mining

Essential Pros and Cons of Mining Mining, an industry pivotal to global economies, offers a double-edged sword of advantages and disadvantages. From the creation of jobs and economic growth to the …

Sulfide-ore Mining and Human Health in Minnesota

For many years, Minnesotans have been reading headlines regarding the prospecting, permitting and potential for sulfide-ore copper nickel (sulfide-ore) hardrock mining in Minnesota. Although the debate is not a new one, the landscape surrounding decisions regarding this type of mining within Minnesota's borders is dynamic and constantly changing.

Terrestrial Ecosystem Impacts of Sulfide Mining: Scope …

cases with acid mine drainage, open-pit, and underground iron mining, have been published for northern forests [10–12]. In addition, there is a much larger body of ecological knowledge that can be synthesized to scope mining-related issues related to terrestrial impacts of mining that have previously received little attention.

What is Sulfide Mining? | Mining Action Group

Metallic sulfide mining (aka hard rock mining) is the practice of extracting metals such as nickel, gold and copper from a sulfide-rich ore body. Sulfides are a geologic byproduct of mining in this …