porphyry copper deposits

Porphyry Copper Deposits

Porphyry copper deposit | mineralogy | Britannica

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. Porphyry copper deposits commonly contain hundreds of millions of metric tons of

Geology of Porphyry Copper Deposits

When it comes to porphyry deposits there are a number of variations on a theme and the deposits can be copper only, they can be copper gold, copper molybdenum or molybdenum only but regardless of the metal mix the process of deposit formation is the same.

News about Porphyry Copper Deposits

Why are some porphyry deposits rich in copper while others contain gold? A researcher investigated how the metals are accumulated over the time duration of …

Porphyry Copper Deposits | Geology for Investors

Jul 23, 2013 · Porphyry Copper Deposits. Most of the world’s copper is extracted from a type of mineral deposit called a “porphyry copper”. If you’ve seen a picture of a great big open-pit mining operation odds are that it was a porphyry copper deposit. Some of the biggest man-made holes in the ground are porphyry copper mines: Bingham Copper Mine, Utah,...

Porphyry copper deposits of the world - USGS

Porphyry copper deposits of the world. Information on porphyry copper deposits from around the world with grade and tonnage models, a general classification based on geologic setting, mineralogy, with data allowing locations of these deposits to be plotted using GIS.

What Investors Need to Know About Porphyry Copper Deposits ...

Porphyry deposits are one of the most important sources of copper and molybdenum, and are also major sources of silver, gold, and tin.In addition, porphyry deposits may host valuable by-products ...

PORPHYRY DEPOSITS - Earth science

The major products from porphyry copper deposits are copper and molybdenum or copper and gold. The term porphyry copper now includes engineering as well as geological considerations; It refers to large, relatively low grade, epigenetic, intrusion-related deposits …

Porphyry Copper Deposit Model - USGS

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.

(PDF) The formation of porphyry copper deposits

The Lutopan Diorite (diorite to quartz diorite in lithology) is the ore-forming intrusion of the giant Atlas porphyry Cu-Au deposit, which is the only Cretaceous porphyry deposit in the Philippines.

Preliminary Model of Porphyry Copper Deposits

Copper skarn deposits occur near many porphyry copper host intru- sions that intruded carbonate-bearing units (Einaudi and others, 1981), and skarn mineral zoning patterns may be useful in the targeting of a potentially associated porphyry copper deposit (Meinert and others, 2005).

How to make porphyry copper deposits - ScienceDirect

Jan 01, 2020 · Occurrence of porphyry copper deposits (PCDs) through time. All were formed in the magmatic arcs associated with subduction zones, but there is a preference for regions of thick arc crust (>35 km), such as continental arcs and mature island arcs.

Exploration of Porphyry Copper Deposits

So how do we explore for Porphyry Copper Deposits which are completely covered by barren younger rocks? Well let’s back up a bit, we know that porphyries form under large subduction related volcanoes and that most of these are located under the ring of fire around the subducting pacific plate another fertile subduction zone occurs in Balkans, Turkey, Iran and Pakistan.

What is a Porphyry Copper Deposit?

porphyry copper deposits were the first type of metallic mineral deposit to be exploited by large-scale, bulk tonnage, open pit mining methods. Economies of scale and advances in technology have made it possible to profitably mine these deposits despite their relatively low ore grades.

Porphyry (geology) - Wikipedia

Collectively, these type of deposits are known as "porphyry copper deposits". Rhomb porphyry. Rhomb porphyry is a volcanic rock with gray-white large porphyritic rhomb-shaped phenocrysts embedded in a very fine-grained red-brown matrix. The composition of rhomb porphyry places it in the trachyte–latite classification of the QAPF diagram.

Everything You Need to Know About Copper Porphyries ...

Mar 11, 2015 · 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. Porphyries are most commonly found along ...

What Makes for a Copper Porphyry Takeover Target

Major miners look to copper porphyry deposits for large-tonnage, low-cost operations. We take a look at what makes for a copper porphyry takeover target. Ask any economic geologist the most ...

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