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by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

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Drop in copper prices moves Arizona out of #1 mining position

<!--[if gte mso 9]> <![endif]-->Arizona fell to second place in value of non-fuel minerals produced in 2015.  The USGS Mineral Commodities Summary for 2015 shows Arizona producing $6.8 billion of mineral vs $6.94 billion in Nevada. Nevada production is dominated by gold whereas Arizona is controlled by copper. Arizona production value was down 14% from the prior year. In 2014, Arizona

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