 | Zhongxin, Yuan, Ge, Bai, Chenyu, Wu, Zhongqin, Zhang, Xianjiang, Ye (1992) Geological features and genesis of the Bayan Obo REE ore deposit, Inner Mongolia, China. Applied Geochemistry, 7 (5) 429-442 doi:10.1016/0883-2927(92)90004-m | Journal (article/letter/editorial) | | and genesis of the Bayan Obo REE ore deposit, Inner Mongolia, China YUAN ZHONGXIN, BAI G E a n d WtJ...is located on the northern margin of the North China platform. When the Proterozoic Bayan Obo Group was...volcanic exhalation. The Sm-Nd whole rock (whole ore) isochron age of the Main orebody of the Bayan Obo...suggest that the ore deposit was formed in the Middle Proterozoic, and that the ore-forming material...age, implying that the ore-forming material was precipitated to form the ore deposit immediately after |  | | Journal (article/letter/editorial) | | Academy of Geological Sciences, Beijing 100081, China 2. Key Laboratory of Paleomagnetism and Tectonic...Beijing 100081, China 3. State Key Laboratory of Geological Processes and Mineral Resources, China University...University of Geosciences, Wuhan 430074, China ∗ Corresponding Author. Tel: (86-10) 88815058; Fax: (86-10) 68422326;...Zhang) Address: No. 11 South Minzudaxue Road, Haidian District, Beijing 100081, China Abstract The Bayan...Bayan Obo in the northern North China Craton (NCC) is the world’s largest light rare earth element (LREE) |  | | Journal (article/letter/editorial) | | chemistry at the Bayan Obo Fe–REE–Nb deposit, Inner Mongolia, China: Contrasting chemistry and evolution of...alteration associated with Fe–REE–Nb ore bodies at Bayan Obo, Inner Mongolia, China, show alkali silicate assemblages...stages wide variations in chemistry occur in both the ore bodies and fenites. Much of this variation is attributable...Similarities in chemistry exist between fenite and some ore body amphiboles. Thermodynamic analysis of the composition...here reinforce previous interpretations of the complex, multistage nature of mineralisation at Bayan Obo |  | | Report (issue) | | Geology and Mineral Deposits of the Jefferson City Quadrangl...1922Geology and mineral deposits of the Jefferson City quadrangl~, ·Jefferson and Lewis and Clark Counties...1922Geology and minerai deposits of the Jefferson City quadrangle, J e:fferson and Lewis and Cl ark Counties...(Card 2) 1 1. 'Geology-Montana-.Jefferson City quadrangle. 2. Ore-depositsMontana-Jefferson C:ity quadrangle...3. Mines and mineral resources-Montana-Jefferson City quadrangle. I. Pinckney, Darrell Mayne, 1925- joint |  | | Report (issue) | | McKelvey, Director Library of Congress Catalog-card No. 74-600023 For sale by the Superintendent of Documents...Canyon.................. Geometry of the intrusive body···-····---·-···-········ Lithology and chemistry................................. Age of intrusive body ··-·-······-·······-······--·-············ Depth... Investigations of specific sulfides from the ore body...... Chalcopyrite etch tests...................Paragenesis o~ minerals in the east ore body.................. 39 Chemistry of the ore and wallrock.......... |  | | Report (volume) | | most recent annual "Price and Availability List" are no longer available. Prices of reports released to the...Book and Open-File Report Sales, Box. 25425, Denver, CO 80225. Order U.S. Geological Survey publications...Book and Open-File Report Sales Box 25425 Denver, CO 80225 Subscriptions to periodicals (Earthquakes...Center, Rm. 1C402, 12201 Sunrise Valley Dr. SALT LAKE CITY, Utah--Federal Bldg., Rm. 8105,125 South State St...S. Geological Survey, Map Sales Box 25286 Denver, CO 80225 Residents of Alaska may order maps from U |  | | Conference Proceedings (Volume) | | The production in 2012 was 34,3 million tonnes of ore containing 67 100 tonnes of copper, 51 700 tonnes...characteristics and genesis of the Caijiaying Zn-Au deposit, China .................................................Gränsgruvan Zn-Pb-Ag deposit, an outsider in the Stollberg ore field, Bergslagen, Sweden ........................The Nihe iron deposit, Anhui Province, eastern China: skarn, IOCG or porphyritic iron deposit? Lejun...roll front-type uranium deposit, Erlian Basin, NE China. . . ......................................... |  | | Book (volume) | | or omissions that may be made. The publisher makes no warranty, express or implied, with respect to the...number of mineral species presented in this library is no more than 400. The identity of samples was verified...bonds or groups of atoms forming covalent bonds – complex anions (e.g. CO32, C2O42, SO42, PO43, SiO44...vibrations of most important coordination polyhedra and complex anionic groups are listed by Miller and Wilkins...zirconoand titanosilicates characterized by very complex and variable crystal-chemical features (Johnsen |  | | Report (issue) | | Geology and Geochemistry of the West Ore Body and Associated Skarns, Copper Canyon Porphyry Copper Deposits...9 8-C Geology and Geochemistry of the West Ore Body and Associated Skarns, Copper Canyon Porphyry...Geology of the west ore body -------------------------------Form and setting of the ore body ________________________...__ Stratigraphic relations of the ore ________________________ Ore metals in the sulfide zone ______...associations ________ Petrology of rocks around the west ore body __________________ Harmony Formation--------- |  | | Book (volume) | | Mining, Metallurgical, V.2 and Petroleum Engineers Ore deposits of the United States, 1933-1967 SS Inst...llurgical, Mining, Meta m Engineers and Petroleu © f the Ore deposiits -1967 United oer, States, sin 1933...200 MAR 2 ¥ 2001 | NEVADA STATE LIBRARY CARSON CITY, NEVADA Digitized by the Internet Archive in 2022...https://archive.org/details/oredepositsofuniO002john Ore Deposits of the United States, 1933-1967 The Graton-Sales...PRACTICE THE PORPHYRY COPPERS (1930) (1933) ORE DEPOSITS OF THE WESTERN STATES (1933) AIME TRANSACTIONS |  | | Report (issue) | | McKelvey, Director Library of Congress catalog-card No. 73-600110 For sale by the Superintendent of Documents...stock, 2.9 km from contact with Duluth Gabbro Complex -···············-················--·····-···-·...in concentrations of Cu, Ag, Mo, and Rb in the intrusion at Copper Canyon during alteration followed increases...determinations. Hypogene sulfide veins that cut the intrusion establish the post-magmatic nature of most metallization...an actual age difference. During cooling of the ore, its retentivity of argon was probably less than |  | Mueller, Andreas G., McNaughton, Neal J., Muhling, Janet R. (2021) Albite ± Actinolite-Altered Porphyry Dykes in Archean Gold Deposits of the Boulder Lefroy-Golden Mile Fault System, Yilgarn Craton, Western Australia: Petrography, Chronology, and Comparison to Canadian Albitites. Minerals, 11 (11) 1288 doi:10.3390/min11111288 | Journal (article/letter/editorial) | | monzodiorite-tonalite intrusions in the strike-slip fault system. Ore-grade biotite-carbonate and late sericite-carbonate-alkali...Above the sample site, the dyke was mined as gold ore (1–6 g/t Au) at +300–350 m. Temperature estimates...mesothermal; monzodiorite; porphyry; albitite; intrusion-related Published: 19 November 2021 Publisher’s...albitite dykes occur in the feeder zone below the East Repulse deposit at Kambalda [4]. distributed under...the Mt Shea monzodiorite-tonalite rite-tonalite complex and associated Fe-Cu-Au skarns, and other gold |  | | Journal (article/letter/editorial) | | assemblages adjacent to the McCreedy East 153 footwall ore body. They yielded an age of 1358 6 78 Ma...Sudbury Breccia hosting the Creighton Deep footwall ore body records a shift from ferro-hornblende to ferro-tschermakite...footwall of the 1850 þ1.3/– 2.4 Ma Sudbury Igneous Complex (SIC) is widely considered to represent fractionated...structurally remobilized examples of contact-style ore (e.g., Garson and Crean Hill Deposits) (Lightfoot...Sudbury Breccia have been confined to the North and East Range of the Sudbury Basin (in particular the Coleman-Levack |  | | Book | | Copyright © 1976 John Drew Ridge All Rights Reserved. No part of this publication may be reproduced, stored...75-34663 Printed in Great Britain by A. Wheaton & Co., Exeter 0 08 020459 7 (Hard Case) ABSTRACT These...of ore deposits; they certainly will not do all his work for him. I have tried to include all ore districts...material is available in print to permit a student of ore deposits to obtain a real understanding of any one...have added some remarks on the classification of ore deposits and on my modification of the Lindgren classification |  | Hodges, C.A., Cox, D.P., Singer, D.A., Case, J.E., Berger, B.R., Albers, J.P. (1984) U.S. Geological Survey-INGEOMINAS mineral resource assessment of Colombia. Open-File Report Vol. 1984 (84-345) US Geological Survey doi:10.3133/ofr84345 | Report (issue) | | domains; explanation for Plates 1 and 2 Appendix A: Ore deposit models Dennis P. Cox, editor (86 pages) ...planning future minerals exploration programs. The complex geologic history and varied lithologic environments...Cordilleran terranes by applying advanced concepts in ore deposit modeling as well as new exploration techniques...recommendations. Two appendices provide compilations of ore deposit models and grade-tonnage models, and are...report includes two appendices: (A) a compendium of ore deposit models, and (B) a compendium of grade/tonnage |  | | Journal (issue) | | of Underground Rock Loading Machines Sait LAKE City tam a AND SERVICE OFFICES MEW YORK 5) 52 SOUTH...Write for Catalog No. 451 today. Lancaster in Most BY PATENTS AND Ave., PUMP CO. Wynnewood, Pa...going too tough for this “Cat” Diesel D8 Tractor with No. 88 “Dozer. Lee Ryan, owner of C. Ryan & Son, says...machines... For the Isbell Construction Co., this “Cat” Diesel No. 12 Motor Grader builds and maintains...maintains roads for trucks hauling copper ore and approximately 25,000 tons of waste per day from a pit in Nevada's |  | | Journal (article/letter/editorial) | | low gold grade (0.4 g/ t). Biotite-sericite-pyrite ore bodies such as those at Kanowna Belle (140 t Au)...control gold quartz-vein ore at Kalgoorlie (2651 ± 9 Ma), and Au-Ag breccia ore at Black Flag (<2648 ±...splay (>1200 t Au) of the Tan-Lu Fault in the North China Craton, however, indicate a close spatial and temporal...(Perriam 1985; Mueller and Harris 1987). Recently, a complex history has been proposed involving two phases...association with biotite-sericitepyrite ± anhydrite gold ore bodies (e.g. Bath et al. 2013). These data are combined |  | | Journal (article/letter/editorial) | | Ore Geology Reviews, 7 (1992) 77-123 77 Elsevier Science Publishers B.V., Amsterdam - - Printed in...in The Netherlands Ore mineralogy of the Appalachian-Caledonian stratabound sulfide deposits James R....F.M., 1992. Ore mineralogy of the Appalachian-Caledonian stratabound sulfide deposits. Ore Geol. Rev...., 7: 77-123. The diverse ore mineralogies of more than 100 stratabound sulfide deposits that occur along...separate the ore deposits into six distinct types following the 1GCP Project 60 guidelines. The ore deposits |  | | Report (issue) | | the guides. Mark Miller and Jim Briscoe Field Trip Co-Chairmen October 2, 1994 ROADSIDE GEOLOGY AND PRECIOUS-METAL...Silver deposit hosted in Tertiary rhyolitic rocks. East of Golconda we enter the Getchell trend which Roberts...strong lithologic and structural control. Further east, as we cross the main Battle Mountain-Eureka trend...and perlite forms the summit of Washington Hill east of the altered zone. Scattered low-grade gold values...exploration was previously conducted by Superior Oil Co. Westley Mines and joint-venture partner Santa Fe |  | | Report (issue) | | Geochemistry -Nevada-Lander Co. 2. Molybdenum ores-Nevada-Lander Co. 3. Geology-Nevada-Lander Co. I. Theodore, Ted...Sales, U.S. Geological Survey, Box 25286, Denver, CO 80225 CONTENTS Abstract ---------------------...iated skarn ---------------------------------Intrusion breccia pipe --------------------------------Altered...onal petrographic and chemical studies near the East stock---------------------------------138 138 Petrography...mineralization ----------------------------163 Copper ore bodies --------------------------------------164 |  | | Report (issue) | | 158 Stratabound Zn-Pb in marbles of Grenville Complex, Balmat-Edwards, New York, by C. E. Brown........knowledge of the characteristics of specific types of ore deposits. The compendium of papers that follows is...of favorable geologic terranes and "ore guides" or "clues to ore" within that terrane whether or not...explain the geologic processes involved. I have made no attempt to recast the "models" into a standard format...preliminary font; they contain no documentation and are not Intended as genetic models. No repetitive layering |  | | Report (issue) | | Precambrian and Paleozoic Geology and Ore Deposits in the Midcontinent Region Rosiclare, Illinois to...Geological Survey Division Natural Resources Building 615 East Peabody Drive Champaign, IL 61820 Eva B. Kisvarsanyi...Geological Survey Division Natural Resources Building 615 East Peabody Drive Champaign, IL 61820 Paul E. Gerdemann...TRIP T147: PRECAMBRIAN AND PALEOZOIC GEOLOGY AND ORE DEPOSITS IN THE MIDCONTINENT REGION James W. Baxter...the Missouri River flows into the Mississippi. The city is named after the French King Louis IX, and its |  | | Report (issue) | | __ _ West-central Alaska ______ --- _____ ------East-central Alaska ____ ----------------Southwestern...mineralogy, and petrology _________ _ Geochemistry of ore deposits ________________ _ Experimental geochemistry...three borates, two vanadates, and a heteropoly complex ________________________________ _ Gladstone-Dale...tuff breccia (host rocks for the ore deposits), subsequent intrusion of plugs, and, finally, emplacement...extends to the east and north of the town of Goldfield. Prealteration (predating formation of ore) rocks occupy |  | | Report (issue) | | . . . . .Utah Mining Association · United Park City Mines Company · . . . . . . U. S. Bureau of Mines...MINERAL INDUSTRIES University of Utah, Salt Lake City, Utah BULLETIN 102 PRICE $6.00 JUNE 1973 FOREWORD...Commission (Technical Assistance Grant-FCRC No. 421-500-043, Doc. No. 10250058) and the Utah Geological and...South America, Europe, North Africa and the Middle East. As an employee of the U. S. Geological Survey...Valley from Tushar Mountains . ... . ... 6 4 . View east from Alunite Ridge across North Fork of Cottonwood |  | | Book | | 81-23975 ISBN: 0-442-28038-6 All rights reserved. No part of this work covered by the copyright hereon...a tribute to them, we would be pleased. We assume no credit for their work, only for pertinent omissions...mineral collector and hobbyist. Many sources are no longer available. We hope we have recovered and preserved...Mining District, Grant County Burro Mountains Apache No, 2 District Lake Valley Caballo Mountains Chloride...Creede Wagon Wheel Gap Fluorspar and Spar City Districts Lake City District Platoro and Summitville Calderas |
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