Porphyry copper deposits are copper ore bodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the deposit itself.

This report contains a revised descriptive model of porphyry copper deposits (PCDs), the world’s largest source (about 60 percent) and resource (about 65 percent) of copper and a major source of molybdenum, gold and silver.

Porphyry copper deposit, large body of rock, typically a porphyry of granitic to dioritic composition, that has been fractured on a fine scale and through which chalcopyrite and other copper minerals are disseminated.

2023年4月23日 · Copper Skarns: Porphyry deposits are often associated with copper skarns, which are zones of mineralization that form at the contact between an intrusive igneous rock and a carbonate rock, such as limestone. Copper skarns are …

2024年1月30日 · Although copper has been mined from a variety of mineral deposits, porphyry copper deposits are the most important source for copper, contributing more than 60% of the annual world copper production and approximately 65% of the known total copper resource.

2013年7月23日 · Porphyry copper deposits are generally composed of a “plug-like” igneous intrusion – a large magma body that is emplaced beneath a volcanic system. On average these deposits can have a vertical and horizontal extent of 1-2 km and can range from tens of millions to more than one billion tons in size.

Porphyry copper deposits are not only the primary source of copper but also contribute significantly to the global supply of molybdenum, gold, and silver. Their large size and relatively low-grade mineralization make them suitable for large-scale, low-cost mining operations. The economic viability of these deposits is enhanced by their ...

2015年3月11日 · Porphyry deposits are very large, polymetallic systems that typically contain copper along with other important metals. Much of today’s mineral production depends on porphyries: 60% of copper, 95% of molbdenum, and 20% of gold comes from this deposit type. Where and How are Porphyries Formed?

Porphyry copper deposits contain approximately one-half of the world's copper reserves and currently account for more than 50% of the world's annual copper production.

Arizona has two major types of copper deposits: Porphyry Copper in southern and central Arizona; and, the Volcanogenic Massive Sulfide Copper of the United Verde Mine in Jerome of central Arizona. A third copper source includes copper of breccia pipes of the Breccia Pipe Province of northern Arizona.