Potassic Igneous Rocks and Associated Gold-Copper Mineralization

✍ Scribed by Daniel Müller, David I. Groves (auth.)

• Publisher: Springer International Publishing
• Year: 2016
• Tongue: English
• Leaves: 342
• Series: Mineral Resource Reviews
• Edition: 4
• Category: Library

✦ Synopsis

This book reviews the geochemical and petrological characteristics of potassic igneous rock complexes, and investigates the different tectonic settings in which these rocks occur. The authors provide an overview and classification of these rocks and elucidate the geochemical differences between barren and mineralized potassic igneous complexes. High-K rocks host a number of epithermal gold and porphyry copper-gold deposits. In recent years, there has also been growing recognition of an association of such rocks with iron-oxide copper-gold (IOCG) deposits, intrusion-related gold deposits (IRGDs) and possibly even Carlin-type gold deposits. This book is not only relevant to academic petrologists working on alkaline rocks, but also to exploration geologists prospecting for epithermal gold and/or porphyry copper-gold deposits in modern and ancient terrains. This fourth, updated and expanded edition incorporates new data and references from Africa, Australia, Brazil, China, Greece, Iran, Mongolia, North America, Russia and Turkey, including new maps and sections and new color plates of high-grade gold-copper ore from major deposits hosted by potassic igneous rocks.

✦ Table of Contents

Front Matter....Pages i-xxxvi
Introduction....Pages 1-7
Definitions and Nomenclature....Pages 9-17
Tectonic Settings of Potassic Igneous Rocks....Pages 19-52
Selected Type-Localities of Potassic Igneous Rocks from the Five Tectonic Settings....Pages 53-76
Primary Enrichment of Precious Metals in Potassic Igneous Rocks....Pages 77-96
Direct Associations Between Potassic Igneous Rocks and Gold-Copper Deposits in Volcanic Arcs....Pages 97-190
Direct Associations Between Potassic Igneous Rocks and Copper-Gold Deposits on Craton Margins....Pages 191-201
Indirect Associations Between Lamprophyres and Gold-Copper Deposits....Pages 203-226
Halogen Contents of Mineralized Versus Unmineralized Potassic Igneous Rocks....Pages 227-245
Implications for Mineral Exploration in Arc Environments....Pages 247-256
Characteristics of Some Gold-Copper Deposits Associated with Potassic Igneous Rocks....Pages 257-296
Back Matter....Pages 297-311

✦ Subjects

Mineral Resources; Geochemistry; Mineralogy