Search results
Results from the WOW.Com Content Network
In Arizona, copper mining has been a major industry since the 19th century. In 2007, Arizona was the leading copper-producing state in the country, producing 750 thousand metric tons of copper, valued at $5.54 billion. Arizona's copper production was 60% of the total for the United States. Copper mining also produces gold and silver as ...
Open-pit mining is primarily utilized as the most efficient method of recovering this metal; the company's three largest such works are the Mission, Silver Bell, and the Ray mines in Arizona. The company had also operated in silver mining in Idaho. Its mines produce 350,000,000 to 400,000,000 pounds (160,000,000 to 180,000,000 kg) of copper a year.
Knowing how much metal stock there is in use, and how long the lifespan of the metal is, can help planners know when these metal stocks will enter recycling or waste streams. It suggested that these 'mines above ground' had the growing potential for future metals supply; the authors found that it is about 50 kg of above-ground copper for every ...
The Mineral Park mine is a large open-pit copper mine located in the Cerbat Mountains, 14 mi (23 km) northwest of Kingman, Arizona (in the southwestern United States). A 2013 report said that Mineral Park has an estimated reserves of 389 million t (383 million long tons; 429 million short tons) of ore grading 0.14% copper and 31 million oz (1.9 ...
The partnership involves forming 50/50 joint ventures in selected areas, focusing on copper exploration in key mineral-rich states. “We see today's announcement as the first step in what we ...
Resolution Copper has proposed to give the federal government 5,376 acres (21.76 km 2) of environmentally sensitive land in Arizona in exchange for the 2,422-acre (9.80 km 2) oak flat federal parcel, [12] which includes the Oak Flat Campground (protected since 1955) and several outdoor climbing sites including the Mine, Atlantis and the Pond. [13]
Native American opposition to Rio Tinto and BHP's Resolution Copper mine could prove crucial for the 2024 U.S. presidential vote in the battleground state of Arizona, underscoring the high tension ...
Bar stock, also (colloquially) known as blank, slug or billet, [1] is a common form of raw purified metal, used by industry to manufacture metal parts and products. Bar stock is available in a variety of extrusion shapes and lengths. The most common shapes are round (circular cross-section), rectangular, square and hexagonal. A bar is ...