 | | Journal (issue) | | 2008 Table of Contents Collecting Minerals in Colorado - Peter Modreski ...........................Pg...Mining Update .......................... Pg. 20 Colorado Fossil Woods - Frank Daniels ...................on collecting minerals in Colorado by Pete Modreski, the informative Colorado petriļ¬ed wood article by...the magazine so you get your very own copy! Colorado Minerals is the theme of the 2008 Denver Gem and...Specimen Rocks; Crystal Park; Glen Cove; Florissant, Lake George, and Crystal Peak; the Tarryall Mountains; |  | | Thesis/Dissertation | | mapping technique in the Italian Mountain area, Colorado Item Type text; Thesis-Reproduction (electronic)...MAPPING TECHNIQUE IN THE ITALIAN MOUNTAIN AREA, COLORADO By Henry Albert Truebe A Thesis submitted to...tectonic setting of the Italian Mountain area in Colorado. . . . . . . . . . : ................... 2 Generalized...mapped by dividing the Italian Mountain area, Colorado into 884 100-meter grid spaces and inventoryĀ...technique was tested in the Italian Mountain area of Colorado and the resulting maps provide insights into the |  | | 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) | | THE IDARADO MINE, NORTHWEST SAN JUAN MOUNTAINS, COLORADO by James N. Mayor1 and Frederick S. Fisher2 ...Formation. Calcareous rocks of the Hermosa, Molas, Leadville, Ouray and Elbert formations were metasomatized...Formation, this includes rhodonite-epidote, epidote-diopside and epidote-actinolite types. The most extensive...extensive skarn is at the top of the Leadville Formation in hole Tb29-H-l. Skarn types there include a combination...m.y.), the Silverton caldera (27 m.y.), and the Lake City caldera (22.5 m.y.) (Lipman et al., 1973). |  | | Book | | MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Sine ā_ā< Ā¢ te om At _SHT 40...MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Richard Walker Holmes and Marrianna...Mines and minerals of the Great American Rift (Colorado-New Mexico). Bibliography: p. Includes index...index. 1. Mines and mineral resourcesāColorado. 2. Mines and mineral resourcesāNew Mexico. I. Kennedy, Marrianna...minerals of the Great American Rift in New Mexico and Colorado. Great American Rift is the name we use for a |  | | Report (issue) | | GEOLOGICAL SURVEY New ages for intrusive rocks in the Colorado mineral belt By Charles G. Cunningham, Charles...nomenclature, New ages for intrusive rocks in the Colorado mineral belt Charles G. Cunningham, Charles W...W. Naeser, and Richard F. Marvin The Colorado mineral belt is defined by a series of Tertiary and uppermost...ore deposits that trends northeastward across Colorado from the Four-Corners area. The belt has produced...assumed in the past. SAMPLE LOCATIONS East Lake Creek stock E. Lake Ck.-l: 39Ā°28 t 36" N., 106Ā°33 f 20" W |  | | Journal (article/letter/editorial) | | quartz, Manhan River mine, Easthampton, Hampshire County, Massachusetts. Marvin Rausch specimen, Jeff Scovil...branch of the Calumet and Hecla mine, Houghton County, Michigan. A. E. Seaman Mineral Museum (Michigan...JulyIAugust: Vanadinite and wulfenite, Old Yuma mine, Pima County, Arizona. Les Presmyk specimen, Jeff Scovil photo...amazonite), Two Point claim, Lake George intrusive center, Teller County, Colorado. Dave Bunk specimen, Jeff... Eagle mine, Gilman County, Colorado. Dave Bunk specimen on loan to the Colorado School of Mines, Jeff |  | | Report (issue) | | WHITEPINE AREA, TOMICHI MINING DISTRICT, GUNNISON COUNTY, COLORADO by Charles S. Robinson This report Is preliminary...dolomite .................... 25 Chaffee formation Leadville limestone ................... 29 ..............ILLUSTBATIONS Figure 1. Plate Index map of Colorado showing location of White pine area Front piece...the Sawatch Range in southeastern Gunnison County, Colorado. The most productive part of the Tomichi...Ordovician), Chaffee formation (Late Devonian), Leadville limestone (Late Mississippian), and Beldon shale |  | | Journal (article/letter/editorial) | | Figure 1: Lustrous epidote is 3.8 centimeters in length. From the J.H. Alexander collection, Denver Museum...Collins, Colorado 80521 PIDOTE from the Calumet Iron Mine in the Turret District, Salida, Colorado The Calumet...mineral localities in Colorado. Some of the best epidote ever discovered in Colorado has come from this... and uralite pseudomorphs. The association of epidote and quartz crystals was described as early as 1877...accessible through the town of Salida in Chaffee County, Colorado. It is located in the Turret district within |  | | Report (volume) | | Intrusive Rocks ana Associated Ore Deposits in the Colorado Mineral Belt U.S. GEOLOGICAL SURVEY BULLETIN... Alaska Rm. 101,4230 University Dr. LAKEWOOD, Colorado Federal Center, Bldg. 810 MENLO PARK, California...Center, Rm. 1C402, 12201 Sunrise Valley Dr. SALT LAKE CITY, Utah Federal Bldg., Rm. 8105, 125 South State...Intrusive Rocks and Associated Ore Deposits in the Colorado Mineral Belt By Charles G. Cunningham, Charles...understand the temporal and spatial evolution of the Colorado Mineral Belt UNITED STATES GOVERNMENT PRINTING |  | | Report (issue) | | Uncompahgre (Ouray) Mining District, Southwestern Colorado Professional Paper 1753 U.S. Department of the...western San Juan Mountains region of southwestern Colorado. In the foreground is a broad, gently south-sloping...Uncompahgre (Ouray) Mining District, Southwestern Colorado By Wilbur S. Burbank and Robert G. Luedke Professional...Uncompahgre (Ouray) mining district, southwestern Colorado: U.S. Geological Survey Professional Paper 1753...Uncompahgre (Ouray) mining district, southwestern Colorado / by Wilbur S. Burbank and Robert G. Luedke. p |  | | Journal (article/letter/editorial) | | minerals include sericite,quartz, chlorite, sulfides,epidote,zoisite, clinozoisite,leucoxene, clayminerals...contraryexampleis describedby Burbank from Bonanza, Colorado where a natural barrier to movement of the solutionswas...a grayishgreenas a resukof the development of epidote. In someof the Quebecgold deposits blacktourmaline...becomes darker due to the formation of chlorite, epidote,and locally tourmaline. At the Nighthawk Penninsulargold...greencoloras a resultof the alteration to chlorite, epidote,mariposite,and serpentine. At the Chesterfield |  | | Journal (article/letter/editorial) | | Two Point claim, Pikes Peak batholith, Teller County. The Collectorās Edge specimen, Jeff Scovil photo...Mail Stop 150, Box 25046 Federal Center Denver, Colorado 80225 pmodreski@usgs.gov C olorado is, of course...been written as guides to mineral collecting in Colorado. A classic, which went through three major editions...1951 version with a slightly different title), is Colorado Gem Trails and Mineral Guide, by Pearl (1951,...up-to-date guidebook to the stateās minerals is Colorado Rockhounding, by Voynick (1994). Other published |  | | Journal (issue) | | ARTICLES: Chalcophanite from the Mou'nt Stewart Mine Leadville, NSW. England, B.M. 1ļæ½):9-11 Definition oĀ·f a...other recent mineral discoveries in the granites at Lake Boga, Wycheproof and Pyramid Hill, Victoria. Birch...and Williams, P.J. 2(1):25-27 Sector zoning in epidote from the Jamieson River area, Victoria. Kwak, T...Opencut, Broken Hill 1(2):36 Mount Stewart Mine, Leadville 1(2):9-11 Proprietary Mine, Broken Hill 1(2):5-6...Inglewood area 1(2):29W Jamieson River area 2(2):51-54 Lake Boga 2(1):37, 41W; 2(2):47-50 Lavers Hill Quarry |  | | Report (issue) | | Quadrangle, Colorado GEOLOGICAL SURVEY PROFESSIONAL Prepared in cooperation with the Colorado State Geological...Geological Survey Board and the Colorado Metal Mining Fund PAPER 289 Geology and Ore Deposits of...of the Garfield Quadrangle, Colorado By McCLELLAND G. DINGS and CHARLES S. ROBINSON GEOLOGICAL SURVEY...in cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mitting Fund. A...Chaffee formation __________________________ _ Leadville limestone ________________________ _ Belden shale |  | | Report (issue) | | Ore Deposits of theĀ· Kokomo-Tenmile District, Colorado By M. H. BERGENDAHL and A. H. KOSCHMANN . I... PAPER 652 Prepared in cooperation with the Colorado Mining Industrial Development Board .. 1\ UNITED...Kokomo-Tenmile district showing areas of garnet and epidote alteration ________________________ _ 15. Photomicrographs... ORE DEPOSITS OF THE KOKOMO-TENMILE DISTRICT, COLORADO By M. H. BERGENDAHL ABSTRACT .... ā¢ The Kokomo-Tenmile...of Summit, Eagle, and Lake Counties, in the mountainous part of central Colorado. Excluding the molybdenum |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur........ .................... ..... ^ B lllii Leadville.................................................SPECIMENS from the collection of the Geology Museum, Colorado School of Mines. See page 242 for a full description... All rights reserved. notes fromthej EDITOR COLORADO-III Here we are with our third special issue devoted...devoted to the mines and minerals of Colorado. As most long-time subscribers know, the first in the series |  | | Report (issue) | | 15-minute Quadrangle, Pitkin and Gunnison Counties, Colorado By BRUCE BRYANT GEOLOGICAL SURVEY PROFESSIONAL...A study of an area at the intersection of the Colorado mineral belt with the west flank of the Sawatch...Counties, Colorado (Geological Survey Professional Paper 1073) Bibliography: p. 123 1. Geology Colorado Aspen...Aspen region. 2. Mines and mineral resources Colorado Aspen region. I. Title. II. Series: United States...Oilman Sandstone ............................... Leadville Limestone ................................. Pennsylvanian |  | | Report (issue) | | Bldg., 2600 corridor, 18th and CSts.,NW. DENVER, Colorado-Federal Bldg., Rm. 169,1961 Stout St. LOS ANGELES...Center, Rm. 1C402,12201 Sunrise Valley Dr. SALT LAKE CITY, Utah-Federal Bldg., Rm. 8105,125 South State...ROLLA, Missouri-1400 Independence Rd. DENVER, Colorado-Map Distribution, Bldg. 810, Federal Center FAIRBANKS...Juan Mountains, Colorado By FREDERICKS. FISHER Gold in the Alma Mining District, Colorado By DANIEL R.... SHAWE Precious Metals in the Leadville Mining District, Colorado By TOMMY B. THOMPSON Part I is Chapter |  | | Report (volume) | | mineralization in the Beaver-Tarryall area, Park County, Colo., a reconnaissance report, by Quentin D....deposits of the Shafter mining district, Presidio County, Tex., by Clyde P. Ross _______ ______ (C) Adsorbent...on concentration tests on manganese from Perry County, by H. S. Rankin______ 1 45 127 223 ILLUSTRATIONS...PLATE 1. Geologic map of Beaver-Tarryall area, Park County, Colo__ In pocket 2. Geologic sections of Beaver-Tarryall...geologic map of the region around Shafter, Presidio County, Tex________________________ 56 7. Geologic and |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur...localities: the mineralogy of Graves Mountain, Lincoln County, G eorgia........................................ from the Sweetwater mine, Ellington, Reynolds County, Missouri. Collection of Maudine and Bob Sullivan;...subscripĀ tion. A mint copy of volume 7, number 6 (Colorado-I) will buy you a three-year subscription. How...among dealers is closer to $50), and 50 copies of Colorado-I (curĀ rently worth $200). Frankly, Iāll be surprised |  | | Journal (article/letter/editorial) | | KokomoMiningDistrict,Colorado CRAIG J.MACH* ANDTOMMY B.THOMPSON **'ā¢ Department of EarthResources, Colorado StateUniversity...StateUniversity, Fort Collins,Colorado 80523 Abstract The oresof the Kokomo miningdistrict,Colorado, areAg-Pb-Znmassive...bandedandtabulartextures verysimilarto oresat Leadville and Gilman,Colorado. Ore deposition occurred in the generalsequence:...deposits in theColorado mineralbelt,including Leadville andGilman. Introduction differ,however; the Mississippian...LeadvilleDolomiteis the dominant ore host at Leadville and Gilman, whereas thin THEI(OKOMO miningdistrictislocatedin |  | | Journal (issue) | | Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan Whatās new in Colorado minerals? ......................................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...Natural History for conceiving the idea of a second Colorado issue and for helping a great deal in bringing |  | | Report (issue) | | Includes the. Leadville, Colorado, mining district. Prepared in cooperation with the Colorado State Geological...Geological Survey Board and the Colorado Metal Mining Fund UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON...High-level terraces,_____________________________ "Lake beds".__________________________________ Stratigraphy...___________ Dyer dolomite member. ___.____-__-_-___ Leadville dolomite------_------_----------__ Weber (?) ...Northern end of the Weston Fault- _ ______ Faults of Lake Isabelle Amphitheater. Faults of the eastern section |  | | Report (issue) | | 5-minute quadrangle, San Juan and Hinsdale Counties, Colorado by Robert G. Luedke 1 and Wilbur S. Burbank2 ...the western San Juan Mountains of southwestern Colorado ......................... Aeromagnetic map of...the western San Juan Mountains of southwestern Colorado (fig. 1), includes almost 59 square miles (153... PUBLISHED GEOLOGIC MAPS San Juan Mountains COLORADO Figure 1.--Index map showing location of the...the western San Juan Mountains of southwestern Colorado. All published geologic maps by the U.S. Geological |
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