 | | Journal (article/letter/editorial) | | Sphalerite and calcite, 5 cm across, Denton mine, Hardin County. Ross Lillie specimen. +!.+!+%% 34!2+ ...chalcopyrite, and sphalerite, 12.7 cm high, Hardin County. Marv Rausch specimen. 3(%,"9 -!#/50). /5 ....3/. 0/0% (!2$). -!33!# 05,!3+) %8 !. $% 2 Illinois Mineral Locality Index 7)..%"!'/ /',% #!22/...(above). Map showing the counties in Illinois, courtesy the Illinois Geological Survey. 96*2: 405...at 19:53 09 October 2014 T he bedrock under Illinois is predominantly composed of Paleozoic sedimentary |  | | Report (volume) | | 1)1KP:croft ZINC AND LEAD DEPOSITS OF NORTHWESTERN ILLINOIS BY F( )—ITER BAIN WASHINGTON GOVERNMENT PRINTING...lead districts of Illinois Southern Illinois district Northwestern Illinois district Historical statement...dolomite St. Peter sandstone Platteville limestone Galena limestone _ Maquoketa shale Silurian rocks. " Niagara...history Ore deposits The ores Minerals of the ores Galena Cerussite Sphalerite Smithsonite _ _ . Pyrite and...Dolomite _ _ Wad Less abundant minerals .. Paragenesis Galena or lead ores . _ Smithsonite or zinc-carbonate |  | | Report (issue) | | _.......................... . Situation of the district. ....... ____ . __ .. __________ ................ _. ___ ....... _..... _... _..... __ .. The district. __ ... ____ .... __ ... ___ ... ___ .. ____ .... _. __ ..... __ . _.. __ ...... . History o.f mining .. ___ .. ______ .... _. ________________ . __...__ .. _._ ........................... _..... .. Quartz monzonite porphyry ..... _._ ......... _.. __ ...__ ... _..... ______ . ___ . __ .. _. _. _____ _ Quartz monzonite porphyry (intermediate type) ... _______ |  | | Report (issue) | | Geology of the Upper Mississippi Valley Zinc-Lead District By ALLEN V. HEYL, Jr., ALLEN F. AGNEW, ERWIN J...Histoyy Survey, the Iowa Geological Survey, and the Illinois State Geological Survey UNITED STATES GOVERNMENT...Cultural development and facilities related to mining Field work and acknowledgments Scope of the report...report Previous geologic work in the district Geology Stratigraphy Precambrian rocks Cambrian system Upper...sandstone Platteville formation Decorah formation Galena dolomite Upper Ordovician series Maquoketa shale |  | | Report (volume) | | production� Lead Zinc � Present production Recent mining act ivitScope of this report � Topography. Relief...character. � Fossils Detailed sections� Relations� Galena dolomite Name and character General sections Page...Stratigraphy--Continued. Ordovician rocks—Continued. Galena dolomite—Continued. 29 Thickness � 29 � Fossils...Dolomite 51 � Selenite 52 � Barite 52 � Quartz 52 � Paragenesis � 52 Galena or lead ores � 52 Smithsonite or...the Maquoketa formation 67 � Ore deposits in the Galena formation VI� CONTENTS. Page. Ore deposits—Continued |  | | Book | | - I THE GUN SIGHT MINE BY A. M. FLEMING I MEADOR PUBLISHING COMPANY 2 7 Beach Street Boston Massachusetts...in vain for the now conceded mythical Gun Sight Mine, This (True) Personal Narrative is Dedicated by... . 44 84 VI. Jack's Fool's Gold Mine-Dunk O'Toole's Alum Mine . . . . . . . . . . . . . . . . . ....Seriously Wounded by Old Long Bow" 160 X. The Gun Sight Mine Laid Bare by a Cloud Burst 175 XI. We Make an Immense... •I ,, " i p �.. :II I t. f THE GUN SIGHT MINE CHAPTER I MR. JOHN SCOTT AND MYSELF AS PLACER MINERS |  | | Book | | at aks SUMMIT AGold Rush History of Summit County, Coldrado By Mary Ellen Gilliland Copyright 1980... Colorado 80498 iv For the people of Summit County, past and present, and particularly, for Larry...Nineteen Summit Map Bibliography Index This Is Summit County Before the Rush Began: The Rocks That Made the...Silver Town Mining: The Pick, Pan and Blasting Powder Route to Riches Breckenridge Mining: Gulches of...of Gold Ten Mile Mining: Storied Silver Canyon Montezuma Mining: Treasure Atop the Rockies Summit Ghost |  | | Report (issue) | | George Otis Smith. Director Professional Paper 138 MINING IN COLORADO A HISTORY OF DISCOVERY, DEVELOPMENT..._____ _ The location, area, and organization of the mining counties of Colorado _________________________..._____________________ _ Alamosa County __________________________ _ Arapahoe County _________________________...Archuleta County _________________________ _ Baca CountY-----------------------------Boulder CountY------...CountY----------------------~----Chaffee County _____________________·______ _ Clear Creek County _______________________ |  | | Journal (article/letter/editorial) | | Deposits and 40Ar/39Ar Geochronology of the Baguio District, Philippines PATRICK J. WATERS,1 DAVID R. COOKE...University of Melbourne, Australia Abstract The Baguio district is located in the Central Cordillera of northern...gold-silver and skarn gold-lead-zinc deposits. The district is floored by Cretaceous-Eocene metavolcanic and...which defines the eastern boundary of the Baguio district. The intrusive complex was emplaced in the early...copper-gold and skarn prospects in the western Baguio district. Mineralization was preceded by the intrusion |  | Cooke, D. R., Deyell, C. L., Waters, P. J., Gonzales, R. I., Zaw, K. (2011) Evidence for Magmatic-Hydrothermal Fluids and Ore-Forming Processes in Epithermal and Porphyry Deposits of the Baguio District, Philippines. Economic Geology, 106 (8) 1399-1424 doi:10.2113/econgeo.106.8.1399 | Journal (article/letter/editorial) | | Epithermal and Porphyry Deposits of the Baguio District, Philippines DAVID R. COOKE,1,† CARI L. DEYELL...Metro Manila, Philippines Abstract The Baguio district contains a diverse array of epithermal, porphyry...of the epithermal Au-Ag deposits of the Baguio district (including Antamok and Acupan, the two largest...Au deposits) are intermediate sulfidation state quartz-carbonate-adularia-illite-base metal sulfide veins...epithermal veins of the southern and central Baguio district are mostly between +1 and +6 per mil, consistent |  | | Journal (volume) | | f.p. for for:v -" ...THE EN. N o GI "RNAL MINE NI'N NG G. J ou VOLUN/1E JANUARY TO LXIII. ...YORPQ. : - . - ". • : THE ENGINEERING AND MINING JOURNAL. VOLUME LXIII. JANUARY TO JULY, 1897...Aluminum, Prices of.................. 565 Accident Mine, Colo.......... 97 63, 159 Aluminum Reduction, Gooch's...118 Alabama Industrial and Scientific Amador Queen Mine, Cal..... ...... 263 Acetylene Gas, Conner's Pat... Doddridge's Pat...... 487 "Alabama, Johns Coal Mine. 74 Amalgamating Process, FischerAcetylene Gas, |  | | Journal (volume) | | ELECTROCHEMICAL SOCIETY MEMBER, AMERICAN INSTITUTE OF MINING ENGINEERS VOLUME XXV Supplementing Volumes I...Editor, Engineering and Mining Journal, New York, N. Y. H. Instructor in Mining, South Bethlehem, Pa....(with Y. E. Bogard) Vice President, Wah Chang Mining and Smelt¬ ing Co. Ltd., 233 Broadway, New York...Consulting Mining Engineer, 1411 Merchants Natl. Bank Bldg., San Francisco, Cal. Professor of Mining, Massachusetts...Assistant State Geologist, Albany, N. Y. Editor, The Mining Journal, 15 George St., The Mansion House, London |  | | Book | | i2mo., illustrated $i-75 1 Citrine {Yellow Quartz) 8. Onyx 15. Arsenic Ore 9. Peruvian Opal...Aquamarine, Golden Beryl, Emerald Tourmalines 7. Rose Quartz 14. Lepidolite 10. 11. 12. 20. Aztirite,...noticed the sign "MINERALS" over the door of a little shop where picture post cards, antiques and various...fives in rocky or mountainous districts, yet know little or nothing of the local minerals. Many can-...How many of us can recognize a pebble of yellow quartz or a water-worn cobble of feldspar lying beside |
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