FreeportMcMoRan has cut operating rates at its Sierrita coppermolybdenum mine in the US and is assessing the possibility of mothballing the unit completely the US miner
a determination of the sulfur isotopic signature of an ore forming fluid from the sierrita porphyry copper deposit pima county arizona by kent turner jr
The Sierrita Copper Mine is the southernmost of three major open pit copper mines south of Tucson It is a large open pit more than a mile wide and 1 400 feet deep
Oct 22 2015 These are the latest in a series of job losses at Arizona mines this year due to the sinking price of copper and in Sierrita s case molybdenum
the longterm global demand and supply fundamentals for the copper and molybdenum markets Sierrita has a large ore reserve position and has a bright future for many
Sierrita made Cyprus the third largest copper producer in the United States and the third largest producer of molybdenum in the world Cyprus Coal also finished
Sierrita produces copper concentrate hode copper and copper sulfate along with molybdenum products and rhenium products Copper and molybdenum are the primary
As of December 31 2016 the Company had seven operating copper mines in North America including Morenci Bagdad Safford Sierrita and Miami in In addition to copper the Morenci mine also produces molybdenum concentrate
Freeport confirms closure of Sierrita Mine Freeport had previously announced it was cutting 580 jobs at the copper and molybdenum mine as it downsized operations
Sierrita is a CopperMolybdenum Mine Arizona also known as Esperanza in USA owned by Freeport McMoran General Description Sierrita is an openpit metals mine
Molybdenum is found all over the world but only a few deposits warrant the extensive We own and operate the Sierrita and Bagdad copper mines in Arizona
While Freeport McMoRan Copper and Gold s Sierrita open pit mine is known for its copper and molybdenum production the site is currently being recognized
Freeport announced late last week that it would cut 10 million lb per year of molybdenum production at its Sierrita copper Prices Expected To Rise Cautiousness
