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The Primavera Deposit consists of classic porphyry style gold-copper mineralization. Primavera is the first porphyry gold-copper project discovered in Nicaragua and the mineralization remains open ...

The Copper Flat porphyry copper deposit in the northern part of the Hillsboro district was discovered in 1975 (Castellano et al., 1977; Dunn, 1982, 1984), although alteration and mineralization in the area suggested to earlier geologists that a porphyry copper deposit should occur in …

The Haib Copper Porphyry, Namibia - Independent Technical Review – P&E South Africa 2 TABLE OF CONTENTS Section Title Page 1. Summary 4 2. Introduction 6

Porphyry copper deposits in the American southwest comprise a distinctive and important metal resource. Their exploration and exploitation during the past hundred years was accompanied by significant advances in geological knowl­ ...

Stratabound volcanogenic massive sulfide deposits formed during the Proterozoic; the economically important porphyry copper deposits were emplaced at the Cretaceous - Tertiary boundary; and deposits associated with detachment faults formed during the middle Tertiary. Copper oxides are also found in Arizona in other types of deposits including ...

2.4 Iron oxide copper-gold mineral system; ... an example of porphyry copper–gold deposits. ... In the porphyry-epithermal mineral system, pathways for fluids and their contained metals, ligands and sulfur include faults, stratigraphic aquifers and crystallising intrusive bodies. Crystallising intrusions are particularly important pathways ...

GENETIC MODEL: These deposits represent a transition from porphyry copper to epithermal conditions with a blending and blurring of porphyry and epithermal characteristics. Mineralization is related to robust, evolving hydrothermal systems derived from porphyritic, subvolcanic intrusions.

Comments: In ore: 0.002 g/t Pt, 0.007 g/t Pd. 30% covered. Surface disturbance about 5 square kilometers. Associated with Late Cretaceous subvolcanic bodies and porphyry dikes intruded into Cambrian metamorphic rocks and Carboniferous granodiorites.

 · The process of exploration, discovery & development of a copper porphyry

Comments: Except for Ag grade, all grades from Chitalin and others (2011), with 0.4% Cu equivalent cut-off. Based on geophysical data, hydrothermal alteration and …

The Lone Star porphyry copper deposit in the Safford District of southeastern Arizona was discovered in the late 1800's but never mined on a large scale. In addition to typical copper oxide species such as chrysocolla, the upper part of the deposit has zones of mineralization in which the chemical assays of core samples have higher amounts of copper than can be visually assigned to the ...

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 …

Porphyry copper deposits are among the world's most valuable deposits. Here's what investors should know about them. Approximately 50-60 percent of the world's copper, and 95 percent of ...

 · 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 ...

"Throughout my preceding years as consultant to the Company I have developed a strong belief in the possibility of porphyry style copper-gold mineralisation seemingly left undiscovered within the midst of a large database that is the Copperstone project.

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

The term "porphyry copper" is derived from the texture of the igneous rock that forms these intrusive bodies. Porphyritic texture is characterized by larger crystals of feldspar and quartz,

Amarc Reports More Successful Drill Results from Duke Copper Porphyry Discovery, British Columbia

Fluid-Inclusion Petrology­ Data from Porphyry Copper Deposits and Applications to Exploration By]. THOMAS NASH GEOLOGY AND RESOURCES OF COPPER DEPOSITS

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 deposits.

The Hat Project Lisle Zone is an alkalic-type gold-copper porphyry discovery closely similar in genesis, host rock types, alteration and mineralization to several important British Columbia mines, including the Copper Mountain, Mt Polley, Mt Milligan, and Red Chris operating mines but distinct from Valley Copper and Gibraltar calc-alkalic ...

12.2.3 Resistivity/IP model of a typical porphyry copper system in the Southwestern U. S. Figure 12.12. Circulating hydrothermal fluids help concentrate economic minerals in the alteration zone surrounding the intrusion. Further concentration of minerals can occur from weathering forming the leached cap and enriched zone.

Understanding Geology of Porphyry Copper Deposits and formations using models around the World. Porphyry Copper Deposits are the largest source of Cu/Mo/Au.

Arena Minerals Discovers Two New Copper Porphyry Prospects in the Atacama Copper Project and Provides Exploration Update

The West Fissure and related structures that host many significant porphyry copper deposits in Chile trend trough the Cristal Project area, and northwest of the Project area, the Incapuquio fault system in Peru hosts additional significant porphyry copper deposits similar to those of northern Chile.

What is a Porphyry Deposit? The term "Porphyry" comes from the word "Porphyritic", a textural term used by geologists when describing the mineral pattern within the rocks that commonly occur in copper porphyry deposits.

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 hypabyssal porphyritic rocks also lead to a separation of dissolved metals into distinct zones.. This process, which occurs primarily when fluids are driven off the cooling magma, is one of the main reasons for the existence in the ...

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

PDF | Copper is a moderately incompatible chalcophile element. Its behavior is strongly controlled by sulfides. The speciation of sulfur is controlled by oxygen fugacity. Therefore, porphyry Cu ...

©2013 Society of Economic Geologists . Compilation 7 . Porphyry Copper, Gold, and Molybdenum Deposits: Preface . EDITOR: DAVID R. COOKE. CODES – The Australian Research Council's Centre for Excellence in Ore Deposit Research, . University of Tasmania, Private Bag …

Porphyry definition is - a rock consisting of feldspar crystals embedded in a compact dark red or purple groundmass. a rock consisting of feldspar crystals embedded in a compact dark red or purple groundmass; an igneous rock of porphyritic texture…

0361-0128/10/3863/3-39 3 Porphyry Copper Systems* RICHARD H. SILLITOE† 27 West Hill Park, Highgate Village, London N6 6ND, England Abstract Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate

Carube Copper Corp. has eleven 100% owned copper and gold exploration permits in Jamaica totalling 535 square kilometres, and a $14M modern exploration database guiding our foreword planning. Carube Copper also has three porphyry related projects in British Columbia, Canada totalling 469 …

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

Request a copy of the compilation report showing MVI examples for major copper porphyry deposits along the North American Cordillera from Mexico to Canada.

The discovery of the first Brazilian copper porphyry and/or polymetallic discovery on the Alta Floresta belt hasn't been confirmed directly by the discoverer, Anglo American, yet.

Copper is the primary commodity of economic interest in most porphyry copper deposits, although some deposits with low to very low copper grades are mined principally for their gold (for example, Çopler, Turkey) and(or) molybdenum (for example,

Porphyry copper deposits are epigenetic in origin (mineral deposits formed later than the rocks enclosing it such as minerals found in veins), and are associated with porphyritic intrusive-related bodies.

phyry copper deposits worldwide, whereas Verde at Refugio is a true porphyry gold deposit. Potassic alteration zones and A-veinlets are strongly developed at Cerro Casale, whereas they are …