Download or read book Light Auger Drilling for Placer Prospecting in the Klondike District Yukon written by Northern Affairs Program (Canada). Yukon Region and published by . This book was released on 1995 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a study conducted to test a prototype mobile, lightweight, low ground impact, all-terrain-vehicle mounted drill for grassroots placer exploration programs. The drill was used to bore 23 holes 3.5 and 4.5 inches in diameter on 10 different sites in the Klondike placer mining district. The researchers drilled the holes until bedrock or until the drill refused to penetrate further. They logged each hole stratigraphically and sampled it at regular intervals, and washed/panned granular samples for placer gold. The results reported include penetration rates for the drill according to type of terrain, factors that influenced drill penetration, and the advantages and drawbacks of the prototype drill for use in placer prospecting.
Download or read book Yukon Exploration and Geology written by and published by . This book was released on 1992 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dredging Thawing and Prospecting Placer Ground in the Klondike District Yukon Territory written by and published by . This book was released on 1918 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1996 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Klondike written by Charles A. Bramble and published by New York : R.F. Fenno & Company. This book was released on 1897 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal Des G ologues Provinciaux written by Committee of Provincial Geologists (Canada) and published by . This book was released on 1993 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Klondike official guide Canada s great gold field the Yukon district prepared by Wm Ogilvie with regulations governing placer mining written by William Ogilvie and published by . This book was released on 1898 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Placer Mining written by Scranton Colliery Engineer Company (Pa) and published by . This book was released on 1897 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drilling for Placer Gold written by and published by . This book was released on 1920 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Placer Mining microform written by International Correspondence Schools and published by Legare Street Press. This book was released on 2021-09-09 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Placer Mining written by Colliery Engineer Company and published by . This book was released on 1897 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drilling for Placer Gold Classic Reprint written by Walter H. Gardner and published by . This book was released on 2015-08-05 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Drilling for Placer Gold The Keystone Drill, as universally used, is not an instrument of precision. Gold particles are not distributed with mathematical symmetry. One drill hole to an acre in ground that is 50 feet in depth only yields for examination part of the whole! Ordinary common sense and care on the part of the operator and panner are sufficient to insure acceptable field work. Meticulous precision or elaborate core measurements are generally absurd. For after the depths have been recorded and the gold weighed, there comes the calculation of the values of precious metal in great blocks of gravel. There is no fixed formula. The experienced Engineer, to whom such work should be entrusted, will compensate for high variations, for loose and swelling ground, for sand and clay, for rusty gold - and his calculations will of necessity contain approximations that eclipse minor errors of the field and nullify minute measurements. Indeed, field work with the Keystone Drill need not be conducted by men of profound skill. Just so the work is done in a consistent manner under the occasional eye of a competent engineer; just so the results are interpreted in the light of experience - then will the final figures carry the full weight of authority. There is no mystery about field work - and should there be, the following pages will clarify the mode of procedure. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Placer Mining written by Colliery Engineer Company and published by . This book was released on 1965 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering and Mining Journal written by and published by . This book was released on 1897 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ICMJ s Prospecting and Mining Journal written by and published by . This book was released on 2007 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mount McKinley Region Alaska written by Alfred Hulse Brooks and published by . This book was released on 1911 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report of 1902 exploratory journey from Pacific seaboard through Alaska Range along northwest base of Mount McKinley to Tanana and Yukon rivers. Includes concise summary of mineral wealth of region and description of stratigraphy, structure, and geologic history of area. Also contains information about climate, vegetation and wildlife, agricultural lands, and means of communication and transportation.
Download or read book Integrated Methods for Discovery written by Society of Economic Geologists (U.S.). Meeting and published by . This book was released on 2002 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
