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Mines An~ Mf 1Terals of Ulllasbf Ngton
I I I I I t I t I I t I I I I l I l I I t I I I I I I t • I I I I I I f Mines an~ Mf1terals of Ulllasbf ngton . • A~AL REPORT or GEORGE A. BETHUNE, FIRST STATE GEOLOGIST. OT.Y~rT'lA, \V A!':IT.: O. C. WOITE, tiTAT.E .PRINT.ER, 1801. I I t I I I t I I I I I I ' I f I I f I I I t I I t I f I I I I I t I I Tacoma, Wash.) Jan. ..............................1 891. To ······-·····-·················································-·····························.··········· I take pleasure in presenting this, the first annual report upon the Mines and Minerals of Washington. Yours very truly, GEO. A... BETHUNE, ~ First State Geologist. Mines anb Minerals of Ulllasbington . • ANNUAL REPORT OF GEORGE A . BETHUNE, FIRST STATE GEOL OGIST. OLYMPIA, WASU.: O. C. WU I TE, STATE PRI NTER. 1891. • ANNUAL REPORT. 'l'o his Excellency, Ct1ARU:S E. LAUG HTON, Governor·, and tlie lion orable, the membm·s of the Seri ate and House of Rep1·esentatives of the State of Washington: G~NTLEMEN- Herewitb find my annual report, as the first ~tate geologist of the State of Washington. In submitting this report for your consideration, and possibly for dissemination throughout the state, I beg leave first to call your attention to the following facts: By act of the legislature, the first to convene in this state, the office of which I have the honor to be the possessor, was created in March, 1890, and my appointment as state geologist and con firmation by the senate followed shortly thereafter. -
The Gold Panning Booklet
GoldPanning A Guide to recreational goldpanning on the Kenai Peninsula, Chugach National Forest, Alaska GoldPANNING A guide to recreational gold panning on the Kenai Peninsula, Chugach National Forest, Alaska Written by Carol Huber Chugach national Forest, anchorage, alaska & Joseph Kurtak Bureau of Land Management, anchorage, alaska Technical assistance by nathan Rathbun Bureau of Land Management, anchorage, alaska (formerly with the U.S. Bureau of Mines) graphic design and editing by David L. allen & Charles Lindemuth Chugach national Forest, anchorage, alaska graphic art by Kathy Sarns Chugach national Forest, anchorage, alaska Contents Welcome . 2 gold – Significance and Use . 3 Kenai Peninsula Mining – a History . 5 Mining Right & guidelines . 7 geology of the northern Kenai Peninsula . 9 Equipment you will need . 10 For your safety . 10 Where to look for gold . 12 How to pan . 13 Kenai Peninsula gold panning areas . 16 map1: Panning sites on the Kenai Peninsula . 17 Bertha Creek panning area . 18 map 2: Bertha Creek . 19 Six Mile Creek panning area . 20 map 3: Sixmile Creek . 21 Resurrection Creek panning area . 22 map 4: Resurrection Creek . 23 Crescent Creek panning area . 24 map 5: Crescent Creek . 25 How much gold have you found? . 26 A glossary of mining terms . 27 Further Reading… . 28 More information… . 29 Welcome Striking it rich! Finding the mother lode! ‘Tis the stuff of miners’ dreams. Unlike professional gold seekers, recreational gold pan- ners benefit mostly from the adventure. The entire family can share in the fun of prospecting and gold panning. in this booklet, we explain basic gold panning techniques, how to find gold, discuss mining rights and guidelines, and identify areas available for recreational panning on the Chugach national Forest portion of alaska’s Kenai Peninsula. -
Heart of Gold Lesson Plan Year 7
Heart of Gold Lesson Plan Year 7 Lesson 1 Separation of Gold Curriculum Links: (ACSSU112) / Year 7 / Science / Science Understanding / Chemical Sciences (ACSSU222) / Year 7 / Science / Science Understanding / Earth and Space Sciences (ACSHE119) / Year 7 / Science / Science as a Human Endeavour / Nature and Development of Science (ACSHE121) / Year 7 / Science / Science as a Human Endeavour / Use and Influence of Science Background Information: It is actually quite unusual to find large nuggets of gold and most gold prospectors actually need to separate gold out from lots of other material. Depending on where the gold is found, this may be done by panning or through dry blowing. Each of these methods relies on the property of density. As gold has a very high density compared to the rock, soil and sediments it is contained in, it can be separated out by exploiting this property as it will fall to the bottom of mixtures that are allowed to settle out. The process of panning is used when small pieces of gold are found in creeks and rivers. It involves using a large shallow dish (pan) to scoop out some of the sediments in the riverbed and a small amount of water. You use a swirling motion with the pan tipped away from you and allow small amounts of the sediments and water to spill over the edge of the pan. When you have only a small amount of the sediments remaining in the pan, you will be able to see any gold particles that remain at the bottom of the pan. During the West Australian gold rush, most of the gold was being found in dry areas and water was a scarce commodity. -
S Ndlovu (PDF)
Extraction of Gold Then, Now and the Future Prof Sehliselo Ndlovu DST/NRF SARChI: Hydrometallurgy and Sustainable Development University of the Witwatersrand, Johannesburg Building a Robust Minerals Industry 3 – 4 July 2017, Cresta Lodge, Harare University of the Witwatersrand Johannesburg Founded Oct. 1896: School of Mines Approx. 37 000 Students 5 Faculties, 33 Schools, 3610 Courses >160 000 Degrees Conferred since 1922 55% Female Students 10 National Centres of Excellence Home to the Bidvest Football Club( Current PSL league Champions) Evolution in Gold Processing Past Technologies • Amalgamation • Panning Current Technologies • Cyanide leaching • Processing of Emerging and Future refractory ores Technologies • Bio-oxidation • Ionic liquids • Alternative leaching • Ultrasonic leaching reagents • Corn starch?? Past Technologies Used in Ancient Times History of gold extends back at least 6,000 years. Egypt and Mesopotamia around 4000 BC. Gravity Separation: Gold Panning Gold concentrated by washing lighter river sands with water Leaves dense gold particles Alternative- wash gold-bearing sand and gravel over a woollen fleece Traps heavier gold dust that would sink into the wool fibres. Advantages • Simplicity Disadvantages • Labour intensive Gravity Separation: Sluicing • Water is channelled to flow through a sluice-box. • Sluice-box is essentially a man-made channel with riffles (barriers) at the bottom. • Riffles create dead-zones in the water current which allows gold to drop out of suspension. Sluicing and panning results in the direct recovery of small gold nuggets and flakes. Gold Parting: Salt Cementation Process • Invented to remove Ag from Au-Ag mixtures around 6th century BC. Mix: argentiferous gold foil, common salt, brick dust or burnt clay and urine in a sealed container. -
Public Comments
Revised Willamette Mercury TMDL and Water Quality Management Plan Public Comments Watershed Management 700 NE Multnomah St. Suite 600 Portland, OR 97232 Phone: 503-229-5696 800-452-4011 www.oregon.gov/DEQ DEQ is a leader in restoring, maintaining and enhancing the quality of Oregon’s air, land and water. State of Oregon Department of Environmental Quality 1 This report prepared by: Oregon Department of Environmental Quality 700 NE Multnomah Street, Suite 600 Portland, OR 97232 1-800-452-4011 www.oregon.gov/deq Contact: Kevin Brannan Alex Liverman Andrea Matzke Priscilla Woolverton 503-229-6629 503-229-5080 503-229-5350 541-687-7347 DEQ can provide documents in an alternate format or in a language other than English upon request. Call DEQ at 800-452-4011 or email [email protected]. Table of Contents Introduction ................................................................................................................................................. 1 Comments .................................................................................................................................................... 1 1. Steven Wright, Texas ................................................................................................................... 1 2. Craig & Linda Olson, Oregon ...................................................................................................... 1 3. Tom Quintal, Oregon .................................................................................................................... 6 4. Craig -
The Pharaohs' Gold: Ancient Egyptian Metallurgy
THE PHARAOHS' GOLD: ANCIENT EGYPTIAN METALLURGY TI n an age when mining is conducted on an lode country increased in size and scale, the clam industrial scale through the use of explosives, or for more efficient means of processing ores huge draglines, and enormous ore-carriers, there grew ever more strident and in response to this is a tendency to forget that mining was, and is, an demand milling processes grew increasingly activity involving the concerted efforts of human sophisticated. Greever notes that California's beings. In his depiction of mining activities in hardrock miners first relied on arrastras and California's nineteenth-century gold fields, Chilean mills to reduce their ores. When these William S. Greever in The Bonanza West: The Story devices failed to provide satisfactory returns of the Western Mining Frontier, 1848-1900 calls to California's argonauts then began to employ mind the human factor involved in the extraction stamp mills to process their gold ores.3 of ore from beneath the earth's surface: The processes underlying the operation of a stamp mill had changed little in the centuries [T)he deepest shafts in California leading up to the California gold rush.4 Greever quartz mining went down ... about compares the basic function of a stamp to that of a three hundred feet; often a deposit was pharmacist's mortar and pestle. In its simplest worked by a tunnel into a hillside or application, a stamp was dropped repeatedly on a even an open cut. The men used hand piece of metallic ore until the ore was reduced to drills, sledges, and a little black pow powder. -
A History of Tailings1
A HISTORY OF MINERAL CONCENTRATION: A HISTORY OF TAILINGS1 by Timothy c. Richmond2 Abstract: The extraction of mineral values from the earth for beneficial use has been a human activity- since long before recorded history. Methodologies were little changed until the late 19th century. The nearly simultaneous developments of a method to produce steel of a uniform carbon content and the means to generate electrical power gave man the ability to process huge volumes of ores of ever decreasing purity. The tailings or waste products of mineral processing were traditionally discharged into adjacent streams, lakes, the sea or in piles on dry land. Their confinement apparently began in the early 20th century as a means for possible future mineral recovery, for the recycling of water in arid regions and/or in response to growing concerns for water pollution control. Additional Key Words: Mineral Beneficiation " ... for since Nature usually creates metals in an impure state, mixed with earth, stones, and solidified juices, it is necessary to separate most of these impurities from the ores as far as can be, and therefore I will now describe the methods by which the ores are sorted, broken with hammers, burnt, crushed with stamps, ground into powder, sifted, washed ..•. " Agricola, 1550 Introduction identifying mining wastes. It is frequently used mistakenly The term "tailings" is to identify all mineral wastes often misapplied when including the piles of waste rock located at the mouth of 1Presented at the 1.991. National mine shafts and adi ts, over- American. Society for Surface burden materials removed in Mining and Reclamation Meeting surface mining, wastes from in Durango, co, May 1.4-17, 1.991 concentrating activities and sometimes the wastes from 2Timothy c. -
Secretary Old Arrastra Gold Mining Co
Wednesday, March 25, 1905 THE SUMPTER MINER &XWaMWWWMto t If you will plve us just n few min- i utes of your valuable timo we will briefly set forth the Merits and Future Possibilities of Our Property. We know we have a splendid Busi- ness Proposition, and believe we are rendering good service in spreading the Untinted Facts before you. We wish we had an hour to talk the mat- ter all over with you; better still, we should like to take you to our Property and show you every Foot of Gold Bearing Ground. Since these are impossibilities, for the present at least, we kindly ask you to listen to our story. We are an Incorporated Body, known as the OLD ARRA8TRA GOLD MINING COMPANY. The Capitalization has been fixed at One Million Dollars, Divided into One Million Shares of the Par Value of One Dollar Each. One half of this stock has been Reserved as Treasury Stock, the sale of whloh will provide ample funds to Further Exploit the Property and Purchase the Necessary Machinery to make it a steady and Profitable Producer. This Stock is and carries no Personal Liabili- ties. Since our Incorporation is Under the Laws of Arizona. It is also Fully Paid when the Certificate is Issued to the Purchaser. In view of our very reasonable capitalization, Net Profit of only Ten Thousand Dol- V lars Per Month, would pay Twelve per cent per annum, on the par value of the entire stock, or the Enormous Profit of .Ono Hundred and Twenty per cent per annum on the present price of Btock. -
Treatment and Microscopy of Gold
TREATMENT AND MICROSCOPY OF GOLD AND BASE METAL ORES. (Script with Sketches & Tables) Short Course by R. W. Lehne April 2006 www.isogyre.com Geneva University, Department of Mineralogy CONTENTS (Script) page 1. Gold ores and their metallurgical treatment 2 1.1 Gravity processes 2 1.2 Amalgamation 2 1.3 Flotation and subsequent processes 2 1.4 Leaching processes 3 1.5 Gold extraction processes 4 1.6 Cyanide leaching vs. thio-compound leaching 5 2. Microscopy of gold ores and treatment products 5 2.1 Tasks and problems of microscopical investigations 5 2.2 Microscopy of selected gold ores and products 6 (practical exercises) 3. Base metal ores and their beneficiation 7 3.1 Flotation 7 3.2 Development of the flotation process 7 3.3 Principles and mechanisms of flotation 7 3.4 Column flotation 9 3.5 Hydrometallurgy 10 4. Microscopy of base metal ores and milling products 10 4.1 Specific tasks of microscopical investigations 11 4.2 Microscopy of selected base metal ores and milling products 13 (practical exercises) 5. Selected bibliography 14 (Sketches & Tables) Different ways of gold concentration 15 Gravity concentration of gold (Agricola) 16 Gravity concentration of gold (“Long Tom”) 17 Shaking table 18 Humphreys spiral concentrator 19 Amalgamating mills (Mexican “arrastra”, Chilean “trapiche”) 20 Pressure oxidation flowsheet 21 Chemical reactions of gold leaching and cementation 22 Cyanide solubilities of selected minerals 23 Heap leaching flowsheet 24 Carbon in pulp process 25 Complexing of gold by thio-compounds 26 Relation gold content / amount of particles in polished section 27 www.isogyre.com Economically important copper minerals 28 Common zinc minerals 29 Selection of flotation reagents 30 Design and function of a flotation cell 31 Column cell flotation 32 Flowsheet of a simple flotation process 33 Flowsheet of a selective Pb-Zn flotation 34 Locking textures 35 2 1. -
History of the Belshazzar and Mountain Chief Mines, Boise County, Idaho
History of the Belshazzar and Mountain Chief Mines, Boise County, Idaho Victoria E. Mitchell Idaho Geological Survey Morrill Hall, Third Floor Staff Report 08-3 University of Idaho July 2008 Moscow, Idaho 83844-3014 History of the Belshazzar and Mountain Chief Mines, Boise County, Idaho Victoria E. Mitchell Staff Reports present timely information for public distribution. This publication may not conform to the agency's standards. Idaho Geological Survey Morrill Hall, Third Floor Staff Report 08-3 University of Idaho July 2008 Moscow, Idaho 83844-3014 CONTENTS Introductory Note.. vii History of the Belshazzar and Mountain Chief Mines, Boise County, Idaho. 1 Introduction. 1 Geology. 1 Ore Characteristics.. 16 History of the Belshazzar and Mountain Chief Mines, Boise County, Idaho. 18 Belshazzar Mine.. 18 Mountain Chief Mine.. 25 References. 51 ILLUSTRATIONS Figure 1. Location of the Belshazzar and Mountain Chief mines, Boise County, Idaho.. 2 Figure 2. Boise Basin and area surrounding the Belshazzar and Mountain Chief mines. 3 Figure 3. Location of the Belshazzar and Mountain Chief Mines, Boise County, Idaho.. 4 Figure 4. Geology of the Belshazzar and Mountain Chief mines and vicinity, Boise County, Idaho.. 5 Figure 5. Sketch showing the underground features of the ore vein at the Belshazzar Mine.. 7 iii Figure 6. Sketch showing relationship of geologic features to the workings at the Mountain Chief Mine.. 8 Figure 7. Geologic map of the workings of the Belshazzar Mine in 1930. 10 Figure 8. Geologic map of the Quartzburg area, Boise Basin, Idaho.. 11 Figure 9. Geologic map of the workings of the Belshazzar Mine in 1932 or 1933. -
The Automobile Gold Rush in 1930S Arizona
Chapter 10 THE AUTOMOBILE GOLD RUSH IN 1930S ARIZONA ©1998 Charles Wallace Miller Today the foremost image of the 1930s that remains years m such manner that the most appropriate in our national consciousness is undoubtedly the name is unquestionably "The Automobile Gold "down and out" lifestyle. Even those far too young Rush," while many participants can only be to remember the times have this image from school described as "amateurs." California naturally led textbooks, from documentary films patched from the movement, yet Arizona saw similar activity old newsreels, and from stories of grandparents. through much of its extent. Scenes of bread lines, of makeshift shanty towns called "Hoovervilles," of "Okies" crossing the By August of 1930 an even more significant news country in broken down trucks, symbolize the era. story appeared which was indicative of the early stages of the overall movement. Near Globe, Surprisingly, many individuals who might have oth Arizona, a local youth, Jess Wolf, recovered erwise been in similar circumstances found a nom nuggets in a gulch. He exhibited his find, totalling inal job and a place to live through mining. The two ounces, in the town of Globe where copper smallest operations accounted for less than 3% of miners were just then being discharged by the total gold production. Nevertheless, they certainly major mining firms. A local rush ensued. enhanced the psychological state of their workers Significantly, Jess Wolf was age seven, and did not who could feel much more productive than many use any equipment at all. The story went out on other victims of the Depression. -
How to Find GOLD
FIND GOLD TO HOW “Whether you hunt for gold How to Find in the field and stream or in old mines, mine dumps or dredge piles, this book will guide you on your quest to GOLD recover more gold.” Metal Detecting and Panning GARRETT/L Learn effective use of a metal detector and gold pan for: AGAL • Dry panning • Wet panning • Nugget hunting • Field searching Ram Publishing Company A subsidiary of Garrett Metal Detectors ISBN-13: 978-0-915920-98-3 ISBN-10: 0-915920-98-0 $3.95 R 1881 West State Street 50395 Garland, TX 75042 AM PN 1509400 ISBN 0-915920-98-0 9 780915 920983 Charles Garrett / Roy Lagal How to Find GOLD Metal Detecting and Panning Charles Garrett/Roy Lagal HOW TO FIND GOLD © Charles L. Garrett/Roy Lagal 2007 Manufactured in the United States of America. All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording or by any information storage or retrieval system, except in the case of brief quotations embodied in critical articles and reviews. For information, address all inquiries to Editor, Ram Publishing Company. First printing: July 2007 2 www.garrett.com CONTENTS About the Author ...................................................5 Introduction ............................................................9 Basic Tools.............................................................11 Additional Tools ...............................................12 Using a Pan to Find Gold ....................................13 Wet Panning .....................................................14