What were the years of operation of the mine that a novel group of acidophilic archaea found at?
Iron Mountain Mine Iron Mountain Mine, also known as the Richmond Mine at Iron Mountain, is a mine near Redding in Northern California, US. Geologically classified as a "massive sulfide ore deposit", the site was mined for iron, silver, gold, copper, zinc and pyrite intermittently from the 1860s until 1963. The mine is the source of extremely acidic mine drainage which also contains large amounts of zinc, copper and cadmium. One of America's most toxic waste sites, it has been listed as a federal Superfund site since 1983.
Aladağ mine The Aladağ mine is a large chromium ore mine located at Adana Province in southern Turkey, 229 km south of the capital, Ankara. Aladağ represents one of the largest chromium reserves in Turkey having an estimated reserve of 200 million tonnes of chromium ore, which contains 10.84 million tonnes of chromium metal at its grading of 5.42%.