Porphyry Copper Deposits

Types of Copper Deposits in the World | Investing News Network

Here’s a brief overview of five things that are important to think about when finding the value of a copper deposit. 1. Types of copper deposits. Porphyry copper deposits are low grade, but are ...

Preliminary Model of Porphyry Copper Deposits - USGS

to many porphyry copper deposits (for example, Bingham, Utah), as well as crosscutting porphyry-style mineralization (for example, Valea Morii, Romania). Primary Commodities Copper is the primary commodity of economic interest in most porphyry copper deposits, although some deposits with low

porphyry copper deposit at El Salvador, Chile | Economic ...

The formation of the porphyry copper deposit at El Salvador culminated volcanic activity in the Indio Muerto district. Host rocks for the ore are Cretaceous andesitic flows and sedimentary rocks overlain unconformably by lower Tertiary volcanics.

Triggers for the formation of porphyry ore deposits in ...

Oct 13, 2013· Porphyry ore deposits are the source of much of the copper, molybdenum, gold and silver used by humans. Porphyry ore typically forms in magmatic arcs above subduction zones. However, generation of ...

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 ...

(PDF) The formation of porphyry copper deposits

Porphyry ore deposits are the source of much of the copper, molybdenum, gold and silver used by humans. Porphyry ore typically forms in magmatic arcs above subduction zones.

Porphyry copper deposits of the world: database, maps, and ...

The foundation of mineral deposit models is information about known deposits—the purpose of this publication is to make this kind of information available in digital form for a group of porphyry copper deposits. This publication contains a computer file of information on porphyry copper deposits around the …

Formation of Porphyry Copper Deposits - Stephen J. Reynolds

Stephen J. Reynolds, Dept. of Geology, Arizona State University

Porphyry copper deposit | mineralogy | Britannica.com

Porphyry copper deposit: 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

Gold in porphyry copper deposits: its abundance and fate ...

Gold abundances in porphyry copper deposits vary greatly, complicating efforts to define gold-rich porphyry copper deposits. The original definition was based on the Au/Mo ratios of porphyry copper deposits with no reference to their copper content , and resulted in the suggestion that gold-rich deposits were found largely in island arc regions (Kesler, 1973).

Porphyry Copper Deposit Model - USGS

Sep 02, 2010· 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.

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 ...

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.

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.

(PDF) Distribution of gold in porphyry copper deposits

PDF | Analysis of 55 porphyry copper deposits demonstrates a continuum between porphyry copper-gold deposits emplaced at a median depth of 1 km, with a median size of 160 million metric tons of ...

Porphyry Copper Deposits | Historical Perspectives of ...

Differences among porphyry copper deposits may in many cases reflect differences in timing and extent of interaction with meteoric water and the deposits’ postmineral histories. There is probably more than one tectonic mechanism capable of generating porphyry copper magmas of variable compositions.

Porphyry copper deposit - Wikipedia

Porphyry copper deposits are copper orebodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the deposit itself. Predating or associated with those fluids are vertical dikes of porphyritic intrusive rocks from which this deposit type derives its name. In later stages, circulating meteoric fluids may interact with the magmatic ...

Porphyry Copper, Gold, and Molybdenum Deposits: Preface ...

Mutschler et al., 1981; Wallace, 1991. Because some porphyry Mo deposits contain significant W, the few papers that document Mo-W and W porphyry deposits are also provided in this subsection. Breccias associated with porphyry copper deposits have been a …

Porphyry Copper Deposits | Geology for Investors

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 ...

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 …

HYPOGENE ALTERATION AND MINERALIZATION IN THE DOS …

Mexico. This region is richly endowed with porphyry Cu-(Mo) deposits, yet Dos Pobres, one of at least four porphyry deposits in the Safford district (Langton and Williams, 1982), represents one of the few porphyry Cu(-Au-Mo) deposits, a distinctive family of porphyry deposits that are commonly associated with relatively mafic intrusive rocks

King Copper | AZGS

Copper remains Arizona's most abundant and valuable metallic mineral product. In 2017, Arizona provided 68% of domestic copper production in the U.S. 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.