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Methods of Placer Mining

Methods of Placer Mining PDF Author: Garnet Basque
Publisher: Surrey, B.C. : Heritage House
ISBN:
Category : Nature
Languages : en
Pages : 96

Book Description
Many creeks and rivers in the west are still good gold producers. This book describes methods of extracting placer gold, including rocker, tom, sluice, electrostatic, and hydraulic concentrators.

Methods of Placer Mining

Methods of Placer Mining PDF Author: Garnet Basque
Publisher: Surrey, B.C. : Heritage House
ISBN:
Category : Nature
Languages : en
Pages : 96

Book Description
Many creeks and rivers in the west are still good gold producers. This book describes methods of extracting placer gold, including rocker, tom, sluice, electrostatic, and hydraulic concentrators.

Gold Mining in the Nineteen Nineties

Gold Mining in the Nineteen Nineties PDF Author: Dave McCracken
Publisher: New Era Publications International Aps
ISBN: 9780963601506
Category : Gold mines and mining
Languages : en
Pages : 278

Book Description
GOLD MINING IN THE 1990's--This one book outlines EVERYTHING a beginner will need & want to know about getting started at gold mining today, either as a hobby or as a small-scale commercial activity. In easy to understand language, supported by clear photographs & graphic demonstrations, this book covers all of the important subjects--including what gold is & looks like, where it comes from & where to find it, how gold deposits & how to find & recover it, & also touches on the legal aspects of how to claim the gold for yourself. The book covers the up-to-date mining procedures of panning gold, sluicing, dredging, high-banking, drywashing, electronic probing, hardrock mining, basic refining techniques, cleaning procedures, selling gold, & much, much more. Herein lies the most comprehensive & thorough work on electronic prospecting techniques (locating gold with metal detectors) available in any publication on the market today. Virtually an encyclopedia of modern gold mining techniques, there is no other book available more up to date, more simple to understand, or which covers the entire subject as thoroughly as this manual.

Alluvial Mining

Alluvial Mining PDF Author: Institution of Mining and Metallurgy (Great Britain)
Publisher: Elsevier Applied Science
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 624

Book Description


Placer Gold Recovery Methods - Special Publication 87

Placer Gold Recovery Methods - Special Publication 87 PDF Author: California Department of Conservation
Publisher:
ISBN: 9781365035654
Category : Reference
Languages : en
Pages : 0

Book Description
This report provides practical, timely information on methods and equipment used in placer gold recovery. Included is detailed information on equipment, practices, recovery factors, efficiency, design, and, where available, costs. Selected gold recovery operations are described in detail. In addition, the reported efficiency and reliability of various types of equipment used today is presented. One notable method not described is the cyanide process, the recovery of gold through leaching with cyanide, a hazardous substance that must be handled with great care. The information presented herein applies to small as well as large placer mining operations. Recreational and independent miners will find information on available equipment and designs with some suggestions for improving recovery. Those intending to mine small to medium-sized placer deposits will find detailed descriptions of suitable equipment and recovery methods. Finally, those interested in byproduct gold recovery from sand and gravel operations...

Finding Gold in Colorado - Prospector's Edition

Finding Gold in Colorado - Prospector's Edition PDF Author: Kevin Singel
Publisher: Createspace Independent Publishing Platform
ISBN: 9781719553469
Category :
Languages : en
Pages : 466

Book Description
Travel guide book inspired by the gold prospecting origin of Colorado. Includes touring information on all the major towns founded as gold mining camps as well as summaries of each town's origin story. Includes reviews and recommendations on historic districts to visit, mines to tour, driving tours of ghost towns and places to gold pan. Includes information on 16 historic districts, 31 museums, 18 mines, 186 gold panning sites across the state of Colorado. Thoroughly researched to confirm public access to the panning sites (no private property or areas subject to mining claim has been included - unlike other books.)Written by a long-time Colorado resident and gold prospector. Based on years of research and field work.Get your share of the gold by prospecting for it in historic, urban, and remote locations across the gold districts of Colorado.

Small-scale Placer-mining Methods

Small-scale Placer-mining Methods PDF Author: Charles Freeman Jackson
Publisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 58

Book Description


Placer-mining Methods and Costs in Alaska

Placer-mining Methods and Costs in Alaska PDF Author: Norman L. Wimmler
Publisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 248

Book Description


Placer Gold Recovery Methods

Placer Gold Recovery Methods PDF Author: Michael Silva
Publisher: Sylvanite Publishing
ISBN: 9781614740377
Category :
Languages : en
Pages : 40

Book Description
Placer Gold Recovery Methods - Michael Silva - This is a great little book put out by the California Division of Mines in the 1980's and now back in print by Sylvanite Publishing. It covers in detail all the methods used to recover placer gold such as Panning, Sluicing, Jigs, Centrifugal bowls such as the Knelson Concentrator, Belt Separators, Reichert Cones, Helixes, Shaking Tables and more. These are still the standard machines used today in most placer operations.

Evolutionary and Revolutionary Technologies for Mining

Evolutionary and Revolutionary Technologies for Mining PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309169836
Category : Science
Languages : en
Pages : 102

Book Description
The Office of Industrial Technologies (OIT) of the U. S. Department of Energy commissioned the National Research Council (NRC) to undertake a study on required technologies for the Mining Industries of the Future Program to complement information provided to the program by the National Mining Association. Subsequently, the National Institute for Occupational Safety and Health also became a sponsor of this study, and the Statement of Task was expanded to include health and safety. The overall objectives of this study are: (a) to review available information on the U.S. mining industry; (b) to identify critical research and development needs related to the exploration, mining, and processing of coal, minerals, and metals; and (c) to examine the federal contribution to research and development in mining processes.

Quarrying Opencast and Alluvial Mining

Quarrying Opencast and Alluvial Mining PDF Author: John Sinclair
Publisher: Springer Science & Business Media
ISBN: 9401176116
Category : Science
Languages : en
Pages : 380

Book Description
Quarrying and all other branches of surface mining rather than diminishing in importance have become of more and more consequence economically, industrially and particularly with the depletion of high-grade deep-mined mineral reserves. Low-grade minerals require low cost extraction and this in many cases necessitates very expensive mechanized equipment with the cost of individual units running into millions of pounds in the case of large scale operations with high productivity. There has been, and there still is, a tendency for the smaller single quarries to be amalgamated into groups with large financial resources and therefore with the ability to purchase these expensive machines so necessary to make operations viable. This in turn requires wider administrative and technical knowledge in executives of these groups and as these often handle a wide range of products from widely differing systems of working, this technical knowledge should embrace the exploitation of many different types of deposits. There is, at present, a great dearth throughout the world of such qualified executives as is apparent from advertisements of vacancies in the technical press. It would appear that these industries offer an attractive career to the widely qualified and experienced technologist in these fields. This book deals with methods of working in the surface extractive indus tries, quarry management and power supply-but does not deal with related ancillary processes except where these affect quarrying operations.