Great Basin Evolution and Metallogeny: Geological Society of Nevada 2010 Symposium

This book comprises over 60 original and fully refereed technical presentations focused on geological analysis and testing of rocks, ores, minerals and elements correlated with gold mineralization and mining in the Great Basin region of the United States. Detailed geological data derived from advanced techniques is supplied for dozens of proven and currently explored mineral-rich areas in Nevada, California, Idaho, Utah, Washington and Alaska, as well as in Mexico and Chile. A wealth of analytic information, including full-color charts and maps, is presented on working gold, silver and copper mines opened or re-opened within the last 10 years, as well as on geological formations identified as promising for high-value future gold discoveries.

Written by industry, government, and university researchers, these two volumes provide a wide range of stratigraphic, lithographic, remote-sensing models and core sample analyses, especially of rocks and ores likely to host Carlin-type gold deposits. Original research is presented on geothermal, geochemical, photoluminescent, tectonic and trace element investigations of geological phenomena associated with epithermal gold mineralization. Chapters of the book are peer-reviewed versions of presentations originally delivered at a symposium organized by the Geological Society of Nevada.

The CD-ROM displays figures and illustrations in articles in full color along with a title screen and main menu screen. Each user can link to all papers from the Table of Contents and Author Index and also link to papers and front matter by using the global bookmarks which allow navigation of the entire CD-ROM from every article. Search features on the CD-ROM can be by full text including all key words, article title, author name, and session title. The CD-ROM has Autorun feature for Windows 2000 or higher products and can also be used with Macintosh computers. The CD includes the program for Adobe Acrobat Reader with Search 9.0. One year of technical support is included with your purchase of this product.

- Gold and precious metal mining and mineralization in the western United States
- Technical analyses of many new mines and high-potential reserves
- Exploration geology for gold, silver, copper, cobalt, molybdenum, and other metal deposits
- Two-volume book set with full-text searchable CD-ROM SHOW LESS READ MORE >

VOLUME I

Organizing Committee

Many Thanks to Our Generous Sponsors

Preface

Acknowledgements and Reviewers

Carlin-type I
- Multiple syngenetic metalliferous horizons enriched in V, As, Mo, Se, Ni, Ag, Zn and Au in the Northern Carlin Trend: Implications for the genesis of world class gold-arsenic deposits
- Barrick Cortez Gold Acres structure
- Sedimentary rock-hosted gold and silver deposits of the Northeastern Basin and Range, Utah

Carlin-type II
- Lithogeochemistry of the Devonian Popovich Formation in the Northern Carlin Trend, Nevada
- Architecture of the Cortez Hills breccia body

Case Histories of Nv Discoveries
- Unlocking the hidden value in joint ventures and acquisitions: A case history of Barrick's reserve and resource growth in Nevada
- The history of exploration and discovery of the Long Canyon gold deposit, Elko County, Nevada, USA

Exploration Technologies: Geophysics
- Fire Creek deep mineralization defined with detailed gravity and MT, Elko County, Nevada
- Recent advances in the application of geophysics for gold exploration in the north-central Great Basin

Exploration—Americas
- Geology of the El Toqui Zn-Au skarn district, Aysen Region, Chile

GB Metallogeny
- Origin of fluids associated with Carlin-type ore systems
- Fault-induced damage controlling the formation of Carlin-type ore deposits
- Role of arsenian pyrite in hydrothermal ore deposits: A history and update
- Magmatism and mineralization in the Oregon Plateau and northern Great Basin: Mid-Miocene volcanism and associated bonanza ore deposits and their relations to the inception of the Yellowstone hotspot

GB Tectonics
- New U-Pb ages for the Eastern Mesozoic Belt of northeastern California: Implications for stratigraphy, tectonic evolution, terrane assignment and possible correlation with Mesozoic units in the western Great Basin of Nevada
- The upper crust on its side—steeply tilted slabs in the Basin and Range
- Tectonostratigraphy of the Great Basin from the Antler orogeny through Pennsylvanian time
- Footwall deformation in the strongly coupled Antler orogenic belt, Nevada and eastern California

Geothermal
- Biogeochemical methods in geothermal resource exploration, Reese River KGRA, Lander County, Nevada
- Structural investigations of Great Basin geothermal fields: Applications and implications

Intrusion-related
- Jurassic igneous-related metallogeny of southwestern North America
- Timing of the Pine Creek tungsten skarn and the causative Morgan Creek pluton, California: Implications for ore genesis and regional geology

Keynote Luncheon
- The place of the Great Basin in the Cordilleran orogen
- The bright future of global mineral resources

New Mine Developments
- Cortez Hills Lower Zone discovery and geologic update
- A geologic update from the Battle Mountain district, Newmont's Phoenix Project
- New mine developments in Idaho: A tale of reserves and environmental issues

Outta the Box
- Rain revisited: New structural and stratigraphic insights and their implications for Carlin-type deposits
- Re-thinking the Comstock: volcanic domes and arcuate structures
- The Battle Mountain—Eureka trend: Evidence for a collapsed Mesozoic to early Tertiary compressional uplift

Regional Exploration Roundup

Integrated exploration techniques for sediment-hosted copper, lower Lisbon Valley, Utah

VOLUME II

Rumors from the Bush
- Gold occurrences at the West Pequop Project, Elko County, Nevada
- A geologic overview of the Spring Valley gold deposit, Pershing County, Nevada
- Buffalo Valley Gold Mine: Porphyry copper, gold skarn or distal disseminated precious-metal deposit
- The Long Canyon deposit: exploration success in new territory
- Gold-Mineralization in the 144 Zone at Sterling: Stratigraphically and structurally controlled, Carlin-type epithermal gold mineralization in the Southern Walker Lane

Tertiary Mag-Metallog
- "Forensic" geochemical approaches to constrain the source of Au-Ag in low-sulfidation epithermal ores
- Quartz-alunite alteration cells in the southern segment of the Ancestral Cascades Magmatic Arc

Volc-rel Epithermal Au-Ag
- Exploration geology of the Golden Arrow gold-silver district, Nye County, Nevada
- Golden Eagle Deposit, Ferry County, Washington
- Importance of cymoid loops and implications for exploration and development of epithermal gold-silver veins in the Gold Circle district, Midas, Nevada
- Ovoidal- and mottled-textured rock and associated silica veinlets and their formation by high-temperature outgassing of subjacent magma
- Geology of the Sandman epithermal gold prospects, Humboldt County, Nevada
- Colloidal and physical transport textures exhibited by electrum and naumannite in bonanza epithermal veins from western USA, and their significance

Young Precious Metals
- Are modern geothermal waters in northwest Nevada forming epithermal gold deposits
- Young (= 7 Ma) gold deposits and active geothermal systems of the Great Basin: Enigmas, questions, and exploration potential
- Genetic implications of mineralization and alteration ages at the Florida Canyon epithermal
- Au-Ag deposit, Nevada
- The geology and gold-silver mineralization of the Wilco Project—Willard Mining District, Pershing County, Nevada
- Identifying magmatic versus amagmatic sources for modern geothermal systems associated with epithermal mineralization using noble gas geochemistry

Poster
- The Elder Creek deposit: the upper plate expression of an auriferous Carlin-type hydrothermal system?
- Geologic setting of gold mineralization at the Rimrock Prospect, Western Sheep Creek Range, Lander County, Nevada
- Patterns of lithology, structure, alteration and trace elements around high-grade ore zones at the Turquoise Ridge gold deposit
- The Denali fault system in the Neotectonic evolution of central Alaska, and associated mineralization
- Age and geology of the Jurassic Lights Creek copper district, California: An Fe-oxide copper gold association
- Petrology and hydrothermal alteration of Jurassic intrusive rocks associated with gold deposits in the Bald Mountain mining district, White Pine County, Nevada
- Paleozoic stratigraphy and kinematics of the Roberts Mountains allochthon in the Independence Mountains, northern Nevada
- Hydrothermal alteration of the late Eocene Caetano ash-flow caldera, north-central Nevada: A field and ASTER remote sensing study
- Ammonium illite at the Jerritt Canyon district and Goldstrike property, Nevada: its spatial distribution and significance in the exploration of carlin-type deposits
- Relation of trace-metal concentrations to luminescence of hydrothermal calcite veins, Batopilas Silver District, Chihuahua, Mexico
- Multi-element geochemistry across a Carlin-type gold district: Jerritt Canyon, Nevada
- West-vergent thrusting on Richmond Mountain, Carlin trend, Eureka County, Nevada
- Geology, mineralization and exploration of the Gold Gulch copper/gold property, Greenlee County, Arizona

Author Index for Volumes I and II