 | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Report (issue) | | COLORADO GEOLOGICAL SURVEY BOULDER R. D. GEOqGE, State Geologi.t BULLETIN 22 MINERAL DEPOSITS OF THE...oozi5137 EAME"S BROS, STATE PRINTERS FOR COLORADO DENVER. COLORADO GEOLOGICAL B O A R D His Excellency...Shoup George Norlin Governor of Colorado President University of Colorado Victor C. Aldersox.. Charles...TRANSMITTAL State Geological Survey, Uxiversity of Colorado, October 28, 1920. Governor Oliver H. Shoup. Chairman...honor to transmit herewith Bulletin 22 of the Colorado Geological Survey. Very respectfully, R. D. George |  | | Report (volume) | | Geologic map showing pre-Cambrian rocks of the Gunnison River region, Colorado___________._______________________...Cimarron Creek -___..____ 4 IV. A, View across the Gunnison Canyon from the northwest end of Bostwick Park;...Park; B, View down the lower portion of the Gunnison Canyon from the northwest end of Vernal Mesa__ 4 V...___-___-___-__________64 XV. A, View from east rim of Cebolla Canyon opposite Tolvar Peak; B, View from Cimarron...___________________ 65 FIGURE 1. Index map of Colorado, showing location of area described.... 2 2. Two |  | | Report (volume) | | 4=78 GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO BY JOHN DUER IRVING AND HOWLAND BANCROFT WASHINGTON........................................ Official mining districts........................................................................... Lake City district.................................................................... Ore deposits of Lake City district....................................... The lodes...deposits Continued. Page. Ore deposits of Lake City district Continued. Pay shoots........................ |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County Arthur Roe Tucson, AZ Abraham Rosenzweig University...Behnke Famous mineral localities: the Corrego Frio mine and vicinity, Minas Gerais, Brazil ...............Person-other—Other persons such as miners, field assistants, mine managers, etc. Place —Used when a mineral is named...Czechoslovakia France Germany Japan Italy Mexico Namibia USSR USA Zaire Total Total number of species during 5-year...leached, ferruginous gossan. Stolzite from this mine was occasionally seen overlying or associated with |  | | Journal (issue) | | Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan What’s new in Colorado minerals? ...................................... Famous mineral localities: the Home Sweet Home mine ..................................................339 by M. I. Jacobson The San Juan Mountains of Colorado ..................................349 by J. A...10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by John |  | | Report (issue) | | Rare-Earth Minerals in Powderhorn District, Gunnison County, Colorado By J. C. OLSON and S. R. WALLACE...PLATE 55. Generalized geologic map of Powderhorn district showing localities examined....____________________________...86. Index map of Colorado, showing location of Powderhorn district, Gunnison County, Colo_-__-__--_-_-_----_-_--_...Deposits showing abnormal radioactivity, Powderhorn district 700 704 707 718 A CONTRIBUTION TO ECONOMIC...RARE-EARTH MINERALS IN THE POWDERHORN DISTRICT, GUNNISON COUNTY, COLORADO By JERRY C. OLSON and STEWART R. |  | | Report (volume) | | Bromargyrite in Volcanic Rocks near Silver Cliff, Colorado GEOLOGICAL SURVEY BULLETIN 1 J82-C t V ...Bromargyrite in Volcanic Rocks near Silver Cliff, Colorado By FRED A. HILDEBRAND and ELWIN L. MOSIER CONTRIBUTIONS...silver ores remain at the surface in this old mining district UNITED STATES GOVERNMENT PRINTING OFFICE,................................................. Mining history .........................................south-central Colorado Map showing principal mining area of Silver Cliff-Rosita mining district and areas |  | | Report (issue) | | Geology of the Menominee Iron-Bearing District Dickinson County, Michigan and Florence and Marinette... Geology of the Menominee Iron-Bearing District Dickinson County, Michigan and Florence and Marinette Counties...-_------------Felch Formation ___________________ _ Vulcan Iron-Formation _____________ _ Traders and Curry...Post-Rand~ille folding __________________ _ Post-Vulcan folding ____________________ _ Post-Animikie folding...term "iron ore" ____________ _ History of iron mining ______________________ _ Future exploration and |  | | Report (volume) | | Mountains Wilderness Study Area, San Bernardino County, California U.S. GEOLOGICAL SURVEY BULLETIN 1712-D...Mountains Wilderness Study Area, San Bernardino County, California By RICHARD J. GOLDFARB, DAVID M. MILLER...Mountains Wilderness Study Area, San Bernardino County, California. U.S. Geological Survey Bulletin 1712-D...California Desert Conservation Area, San Bernardino County, California. CONTENTS Summary Dl Abstract 1...Acknowledgments 5 Appraisal of identified resources 5 Mining and exploration history 5 Mines, prospects, claims |  | | Report (issue) | | Geology of Central Dickinson County Michigan GEOLOGICAL SURVEY PROFESSIONAL Prepared in cooperation...Conservation PAPER 310 Geology of Central Dickinson County Michigan By H. L. JAMES, L. D. CLARK, C. A. LAMEY...relations__ Conditions of deposition._-_____-_-__ Vulcan iron-formation.___.______________ Description ...Definition of "iron ore"_--_-----------------History of mining and exploration. _____ Occurrence and origin of...ore. _ _ General considerations____--_______-__ Vulcan iron-formation as low-grade ore____ Skunk Creek |  | | Journal (article/letter/editorial) | | MultistageVein Ores of the Lake City District, Western San Juan Mountains,Colorado John,• F. SL^CK U.S. Geological...vein ores of the Lake City district, in the western San Juan Mountains, Colorado,have producedapproximately$12...Wall-rock alterationcharacteristicallyis quartz-sericite-pyrite,grading laterally outward into rocks affectedby...pyroxmangite,calcite,sericite,and fluorite. At the Ute-Ulay mine, the largest producerof the district, titis assemblagehas...massiverhodochrosite'and Id, late quartz-carbonate-fluorite.On a district-wide scale,the quartz-basemetal assemblage showsa |  | | Report (issue) | | WALCOTT, DIRECTOR THE MENOMINEE IRON-BEARING DISTRICT OF MICHIGAN BY WILLIAM SHIRLEY BAYLEY CHARLES...tongue Economic importance of the district Previous work in the district 35 Method of 33 35 36 - ...Hornblende-schists Interesting localities Section 153 154 Sericite-schists Little 148 149 schists Lower Menominee...fold 239 Norway 240 fold Aragon fold West Vulcan fold Other secondary folds at southern margin Secondary... series 280 Distribution 283 Folding 284 Vulcan formation 285 Distribution 285 Topography |  | | Report (issue) | | decide whether a certain metalliferous deposit or district should be included or not. The problem was also...other forms) since 1935 is reviewed. New sulfur mining and recovery projects in the United States and...chemical properties of sulfur, the geology and mining operations of the salt-dome sulfur deposits, the...sulfur by superheated water through wells at Sulphur mine, Louisiana, are fully detailed. Exploration and...Swager, W. L. , and Sullivan, J. D. , 1951, Sulphur: Mining Engineering, vol. 3. , pp. 403409. The history |  | | Report (volume) | | Geology of the Curlew Quadrangle Ferry County Washington By RAYMOND L. PARKER and JAMES A. CALKINS GEOLOGICAL...Laurence, 1921Geology of the Curlew quadrangle, Ferry County, Washington, by Raymond L. Parker and James A....1923joint author. II. Title: Curlew quadrangle. Ferry County, Washington. (Series) For sale by the Superintendent..._____________________________------_-_-__-------Mine workings.--_--_-_-___----______________________----Geology..._____________________ Morning Star mine.--_--___-_--__-____________________-_______ Lancaster mine.-.._______________ |  | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) | | Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |  | Reid, A., Smith, R. N., Baker, T., Jagodzinski, E. A., Selby, D., Gregory, C. J., Skirrow, R. G. (2013) Re-Os DATING OF MOLYBDENITE WITHIN HEMATITE BRECCIAS FROM THE VULCAN Cu-Au PROSPECT, OLYMPIC Cu-Au PROVINCE, SOUTH AUSTRALIA. Economic Geology, 108 (4) 883-894 doi:10.2113/econgeo.108.4.883 | Journal (article/letter/editorial) | | OF MOLYBDENITE WITHIN HEMATITE BRECCIAS FROM THE VULCAN Cu-Au PROSPECT, OLYMPIC Cu-Au PROVINCE, SOUTH AUSTRALIA...Australia, Symonston, ACT, Australia Abstract The Vulcan prospect is a newly discovered Cu-Au prospect located...those composed entirely of hydrothermal hematite + sericite + chlorite to those dominated by altered rock...preserved. The highest-grade zones of mineralization at Vulcan occur within hematite-dominant breccias. Molybdenite...was emplaced at 1743 ± 7 Ma. The new data from Vulcan confirm that hematite breccia-related Cu-Au mineralization |  | | Report (issue) | | (CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur...eventually led to one of the biggest and most important "mining booms" in this country's first century. Despite... the 1845 discovery of the Cliff Mine ( first in the world to mine native copper as its sole product)...instilled confidence in North Country mining and initiated the modern mining era. Choice 'Lake Copper' furnished...never documented by geologists working in the district during its decades of maximum activity. Hence |  | | Book | | T. J. Bornhorst, P. Brandes, R. Clark (Cliffs Mining Services Co.), B. C. Cornilsen, R. V. Dietrich...helpful suggestions throughout the project; to Ashton Mining of Canada, Inc. and Crystal Exploration, Inc.,...APPENDIX I: MICHIGAN MUSEUMS AND EXHIBITS FEATURING MINING, MINERALS, ROCKS, AND FOSSILS .......................243 APPENDIX II: MINERAL SPECIES LISTED BY COUNTY ...............................248 ABOUT THE AUTHORS...Oronto Group a.. 3: co w C: _J 0 0 Marquette Iron District, Baraga and Marquette Counties diabase dikes |  | | Report (issue) | | CONTACT METAMORPHISM OF THE: ROGKS IN PEND OREIIXE DISTRICT, JQSEPH-L. '!:<;i("Tf.. r';rj i.-*'. • :'.( lu...FiatfKE 16. Map of the Pend Oreffle area, Bonner County, Idaho..__———_».*_-——,.---*..**:*,**:•,——_>»^,*...IN TR® NORTHERN IDAHO By In the Fend Oreille district, Idaho, a section of sediment*, part belonging...the temperature ef the masses had becbme lower, sericite, chlorite, serpentine, magnetite, and sulphides...from its effects. 1%ft stiHy of the rocks of the district has shown that of igneous rnetaiaorphism Was long^ |  | | Report (issue) | | ORE DEPOSITS OF THE SIERRITA MOUNTAINS, PIMA COUNTY, ARIZONA. By F. L. RANSOME. INTRODUCTION. The Sierrita...prospects within what is locally known as the Papago district, although they appear to be included within what...called the Sierritas district. On the east side of the range lies the Pima district, within which are a...narrow fissures. The Pima district was organized in 1877. The Papago district is about 38 miles by road...foothill belt in which the pros-, pects of the Papago district are situated. 407 408 CONTRIBUTIONS TO ECONOMIC |  | | Journal (article/letter/editorial) | | South Dakota, and in the southwesternstates of Colorado, New Mexico, and Arizona. The major iron-formations...iron-formationin the Lake Superiorregionis in the Iron River district,where a 50foot bed containing35 to 40 percentpyrite...Arizona, (1911). This account,in turn, was updatedby Colorado,and New Mexico. Figure 1 showsthe Leith et al...Michigan(Aldrich gan (Cannonand Simmons,1973). Vermilion district, Minnesota: Northern Minneet al., 1965), where...Crystallinerocks, mostly origin of igneous origin district Mich. Basalt Sandstone and and breccfo Conglomerate |  | | Report (issue) | | GEOLOGICAL SURVEY Locatable Mineral Reports for Colorado, South Dakota, and Wyoming provided to the U.S.............................................. 1 COLORADO ................................................Offer ..................................... 3 Gunnison National Forest Crested Butte Mountain Resort........ . . ............ 10 Pike National Forest County of El Paso (Black Forest) Land Exchange Offer ...Land Exchange Offer ......... 131 Roosevelt and Gunnison National Forests Mary Ross Quaintance Estate/Bear |  | | Report (issue) | | W. T. Schaller, Afwillite NMNH 95237 Dutoitspan Mine, Kimber¬ ley, South Africa Dutoitspan Ammonioborite...Geological Survey, 1950) Trinity Anemousite County, California. Contributions to Mineral¬ (discredited...Vonsen, 1920) NMNH 106112 from the Hillside Mine, Yavapai County, Ari¬ L. G. Berry, 1947. Composition and...Aluminocopiapite Utah NMNH K. J. Murata, Trinity County, California M. C. Bandy, 1938. Utah. J. M. Axelrod...93834 Island Mountain, Mountain, from Mine, Yavapai County, Arizona (L. J. Cabri, 1976) Island Group |  | | Report (volume) | | GEOLOGY OF THE SAN JUAN REGION OF SOUTHWESTERN COLORADO BY WHITMAN CROSS AND ESPER S. LARSEN UNITED...granite-of ConejpsiRiver_______. ..-______-__-_.___ Gunnison River area. ____ ______ __.__._._.__ _ ________...__-__ Resources. ____ __ ^_____ _ ______ Metal mining.._____________-_-------__--_-______-____--_____Production...of the San Juan region, Colorado _________ In pocket 2. Relief map of Colorado showing the relation of...San Juan region to the other mountain masses of Colorado.__________ 10 3. Drainage map of the San Juan |
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