Information on porphyry copper deposits from around the world with grade and tonnage models, a general classification based on geologic setting, mineralogy, with data ...

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 ...

TOPS AND BOTTOMS OF PORPHYRY COPPER DEPOSITS 801 This section does not purport, however, to vindicate every aspect of the proposed model. It is dear that a ...

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 ...

Porphyry copper deposits are among the world's most valuable deposits. Here's a brief overview of a few things investors should know about them.

Porphyry copper deposits are copper orebodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the ...

What is a Porphyry Copper Deposit? by . David F. Briggs on Jan. 11, 2014, under ...

Mineral deposit models are important in exploration planning and quantitative resource assessments for two reasons: (1) grades and tonnages among deposit types are ...

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 ...

Abstract. Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits centered on ...

Feb 19, 2011· By Leia Michele Toovey-Exclusive to Copper Investing News Porphyry deposits are the world's most important source of copper and molybdenum ,.

The term porphyry is also used for a mineral deposit called a "copper porphyry". The different stages of cooling that create porphyritic textures in intrusive and ...

What is a Porphyry Copper Deposit? by David F. Briggs Over the last several years, many of you have probably heard the term “porphyry copper” and

Geological Summary and Perspective of Porphyry Copper Deposits in Southwestern North America SPENCER R. TITLEY University of Arizona, Tucson, Arizona

Preliminary Model of Porphyry Copper Deposits By Byron R. Berger, Robert A. Ayuso, Jeffrey C. Wynn, and Robert R. Seal Open-File Report 2008–1321

Porphyry copper deposits of the world: database, maps, and preliminary analysis Open-File Report 2002-268 By: Donald A. Singer, Vladimir I. Berger ...

What is a Porphyry Deposit? The term “Porphyry” comes from the word “Porphyritic”, a textural term used by geologists when describing the mineral pattern ...

The mining practice that uses solutions to extract a desired commodity from an ore deposit where it stands without also extracting the rock is known as solution mining.

Porphyry copper deposits are among the largest reservoirs of gold in the upper crust and are important potential sources for gold in lower temperature epithermal ...

Porphyry Copper, Gold and Molybdenum Deposits (SEG) West Convention Centre / Registration Required. Presented by: Society of Economic Geologists (SEG)

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

K–Ar dating demonstrates that all but eight of 41 dated porphyry copper and related ore deposits of Mexico were emplaced during the Laramide episode of maximum ...

Porphyry Copper Systems* ... including porphyry deposits centered on intrusions; skarn, carbonate-replacement, ... (Sillitoe, 1972; Richards,

©2013 Society of Economic Geologists . Compilation 7 . Porphyry Copper, Gold, and Molybdenum Deposits: Preface . EDITOR: DAVID R. COOKE. CODES – …

Full-text (PDF) | Estimating numbers of undiscovered mineral deposits has been a source of unease among economic geologists yet is a fundamental task in considering ...

Overview: Porphyry deposits are characterized by large-tonnage and low-grades related to porphyritic intrusions. Metals are primarily hosted in stockwork and breccia ...

Porphyry copper deposit densities vary from 2 to 128 deposits per 100,000 km 2 of exposed permissive rock, and the density histogram is skewed to high values.

Everything You Need to Know About Copper Porphyries. Presented by Entrée Gold. What is a Porphyry? Porphyry deposits are very large, polymetallic systems that ...

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 ...

Porphyry copper deposits represent an important resource and the dominant source of copper that is mined today to satisfy global demand. [5] Via compilation of ...

CHAPTER 4 PORPHYRY DEPOSITS CLASSIFICATION AND GEOLOGICAL CHARACTERISTICS The development of the first porphyry copper and molybdenum deposits in British Columbia in ...

Porphyry copper Location: El Salvador, Chile This deposit is associated with the intrusion of Tertiary porphyritic granodiorite stocks into Cretaceous lavas and

Porphyry Copper Deposits. Porphyry copper deposits provide more than 50% of the worlds copper from over 100 producing mines. Their close relatives the porphyry moly ...