 | | Report (issue) | | DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY Geology, Mineralogy and Paragenesis of the Pride of America Mine...Mine, Lake City, Hinsdale County, Colorado by Richard F. Sanford, Ann M. Kramer, and Hugh O'Brien Open-file............... Geology of the mine area..................................... Mine workings and production...MINERALOGY AND PARAGENESIS OF THE PRIDE OF AMERICA MINE, LAKE CITY, HINSDALE COUNTY, COLORADO By Richard F. Sanford...Kramer, and Hugh O'Brien ABSTRACT The Pride of America Mine exposes two classic fissure-type veins in |  | | Report (volume) | | Resources of the Redcloud Peak and Handles Peak Wilderness Study Areas, Hinsdale County, Colorado U.S. GEOLOGICAL...Resources of the Redcloud Peak and Handles Peak Wilderness Study Areas, Hinsdale County, Colorado By RICHARD...KORZEB U.S. Bureau of Mines U.S. GEOLOGICAL SURVEY BULLETIN 1715 MINERAL RESOURCES OF WILDERNESS STUDY...STUDY AREASSOUTHWESTERN COLORADO DEPARTMENT OF THE INTERIOR DONALD PAUL MODEL, Secretary g U.S. GEOLOGICAL...CO 80225 Library of Congress Cataloging-in-Publication Data Mineral resources of the Redcloud Peak |  | | Report (volume) | | DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY GEORGE OTIS SMITH, DIRECTOR BULLETIN 4=78...4=78 GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO BY JOHN DUER IRVING AND HOWLAND BANCROFT WASHINGTON........................................ Official mining districts........................................andesite.............................................. Henson tuff................................................... Hinsdale volcanic series........................................... Lake City district....... |  | | Journal (article/letter/editorial) | | VOL. 75 OF THE SOCIETY THE OF NOVEMBER, ECONOMIC GEOLOGISTS 1980 MultistageVein Ores of the Lake...Lake City District, Western San Juan Mountains,Colorado John,• F. SL^CK U.S. Geological Survey, Federal...Polymetallic vein ores of the Lake City district, in the western San Juan Mountains, Colorado,have producedapproximately$12...arcuate belt around the north, northeast,and east sides of the 22.5-m.v.-old Lake City caldera. The veins,typically0...faults outside the ring fault of the Lake City caldera and within the moat area of the older (28 m.y.) Uncompahgre |  | | Report (issue) | | Bibliography and Index of Colorado Geology, 1984-1989 Colorado Geological Survey Department of Natural Resources...Resources Denver, Colorado 1990 Information Series 30 Bibliography and Index of Colorado Geology, 1984-1989...contract to the Colorado Geological Survey Colorado Geological Survey Department of Natural Resources...Resources Denver, Colorado 1990 ii FOREWORD In recognition of the need to more effectively utilize the...the immense store of published literature on the state's geology, the Colorado Geological Survey is pleased |  | | Book | | I - ,=: CJ? UBY & SAPPHIRE is a journey into one of mankind's most fascinating subjects. A technical...& Sapphire is just such a book-a rare combination of face and fun, the pertinent and che peculiar. Open...great. Explore the legendary Valley of Serpents, into which pieces of meat were cast co trap tubies. And...the lofty snows of Kashmir, home of storied blue-velvet sapphires. These are but a few of the amazing and...more. T he product of over 15 years of firsthand experience, it covers every facet of che subject fro1n |  | | Book | | Hughes Executive Vice President, Asian Institute of Gemological Sciences, Bangkok, Thailand Butterworth-Heinemann...IXTER~ATIO~:\L P.L.l'. All rights reserved. No part of this publication may be reproduced or transmitted...written permission of the copyright holder (except in accordance \\ith the provisions of the Copyright Act...Act 1956 (as amended) or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 33-34...written permission of the copyright holder must also be obtained before any part of this publication is |
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