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The southwestern North America porphyry copper province comprises adjacent parts of the U.S. states of Arizona, New Mexico, and Texas, and the Mexican states of Sonora, Chihuahua, northern Sinaloa, and Baja California. The province has an estimated total endowment (production + reserves + resources) of 295 million tonnes of copper metal, 96% of which is in deposits of Laramide (∼80–45 Ma) age. This is one of the major accumulations of the element known in the Earth's crust. In addition to having played a major historical role with regard to the discovery, development, mining, and scientific study of porphyry copper...

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