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Southern Arizona was uplifted and experienced volcanic eruptions, which deposited high silica ash to the north as the Chinle Formation, which created the petrified wood of Petrified Forest National Park. Through the Jurassic, a large coastal desert similar to the modern Sahara or Namib desert occupied northern Arizona into Utah.
As of May 2015, Energy Fuels was preparing to mine uranium at its Canyon mine, a deposit on US Forest Service land, six miles from the south rim of the Grand Canyon. The deposit was discovered in the 1970s, and partially developed as an underground mine under a Forest Service permit in the late 1980s, but never put into production.
Mining of the Resolution Copper deposit in Pinal County, potentially the largest copper mine in Arizona, is stalled pending a proposed land swap with the federal government. [17] Resolution Copper has proposed to give the federal government 4,500 acres (18 km 2 ) of environmentally sensitive land in Arizona in exchange for the 3,000-acre (12 km ...
The project site is located within the Santa Rita Mountains and Coronado National Forest, in Pima County of southern Arizona. It has undergone a permitting review process under the direction of the United States Forest Service and the U.S. Army Corps of Engineers and has been delayed by legal judgements and suspension of its operating permit by ...
Petrified Forest National Park is a national park of the United States in Navajo and Apache counties in northeastern Arizona. Named for its large deposits of petrified wood, the park covers about 346 square miles (900 square kilometers), encompassing semi-desert shrub steppe as well as highly eroded and colorful badlands.
A recent geological survey conducted via drone revealed there is a wide and roughly 2-mile long crack running through the desert in Pinal County, Arizona, reports Fox News.. This isn't first giant ...
As of 2007, before the post-Fukushima price crash, there was an increase in price and demand for nuclear reactor fuel, making the Arizona Strip the site of high uranium mineral exploration. More than 500 breccia pipe targets in the Arizona Strip area were actively being explored by at least 11 mineral exploration companies. (May 25, 2007)
In 1915, the Arizona Bureau of Mines was established at the University of Arizona with Charles Willis as its first director. World War II was a fertile time for the Arizona Bureau of Mines. The hunt for strategic metals from large volume, low-grade deposits involved Bureau geologists in research and design of ore concentrating facilities at ...