 | | Report (volume) | | Economic Geology of the Idaho Springs District Clear Creek and Gilpin Counties, Colorado GEOLOGICAL (=) I...Geology of the Idaho Springs District Clear Creek and -i ;i ?i Gilpin Counties, Colorado By ROBERT H. MOENCH...___________ Mines and prospects in the Idaho Springs district ________________ Previous studies.____..._________ __________________________________ Sphalerite. _________.__ -_______---_-_-____________'___-_--Galena...are in pocket] PLATE 1. Map of the Idaho Springs district, Colorado, showing location of mines and distribution |  | | Report (issue) | | Nines and Prospects, Idaho Springs District Clear Creek and Gilpin Counties, Colorado Descriptions and Kapa...Energy Commission Introduction The Idoiho Springs mining district forms an important segment of tae Front...From 1859, when placer gold was discovered in Idaho Springs and lode gold in Central City, through 1959...from a 50-square-mile area that includes the Idaho Springs and adjacent districts to the north, west, and...and southwest. The adjacent Central City district, which produced ores valued at more than $100 million |  | | Journal (article/letter/editorial) | | International University] at 22:16 23 December 2014 Gold mining is not romantic, it is dirty, and it is very hard...played out on a daily basis in opening the Colorado mining frontier, however, are very much the stuff...generation had seen an Colorado showing the Colorado mineral belt and the location of the mining districts discussed...1940; Elliot West 1997, verbal com.). scope of this mining economy. There simply was no other ecoThe initial...of 1858 were nomic force to compare with that of mining during the first all made along streams on the |  | | Report (issue) | | PRELIMINARY REPORT ON THE ECONOMIC GEOLOGY OF GILPIN COUNTY, COLORADO. By EDSON S. BASTIN and JAMES M. HiLL.1 INTRODUCTION...the economic geology of Gilpin County and adjacent portions of Clear Creek and Boulder counties, Colo.,...for information concerning this important mining district. The area considered lies 30 to 35 miles west...Kocky Mountains. It is the oldest lode-mining region in Colorado, and its discovery in 1859 was the occasion...productive portions of Gilpin County and small adjacent parts of Boulder and Clear Creek counties, all within |  | | Book | | Gkologim-in-charge. CATALOGUE OF MINERALS FOUND IN COLORADO. BY • F. M. ENDLICH. [EXTRACTED FROM THE TENTH...been adopted. tar as practicable, analyses of Colorado minerals have been given. They will aid examination...of the catalogue. systematic enumeration of the Colorado mineral species and references to the publications...Endlich, S. IN COLORADO. X. D. The continuous development of mineral resources of Colorado is productive...Geological .Report for PS75. Now, the survey of Colorado is completed, many additions of species new to |  | | Report (volume) | | Uranium Deposits of the Caribou Area, Boulder County Colorado GEOLOGICAL SURVEY BULLETIN This report concerns...Uranium Deposits of the Caribou Area, Boulder County Colorado By F. B. MOORE, W. S. CAVENDER, and' E. P.... UNITED STATES DEPARTMENT OF THE INTERIOR FRED A. SEATON, Secretary GEOLOGICAL SURVEY Thomas B. Nolan,...- - _________________ . Idaho Springs formation --______________ Boulder Creek granite____..________________...Uranium-bearing lead-silver veins___________________ Mine descriptions_____________________________________________ |  | | Report (volume) | | geology of the deposits, with consideration of mining methods and exploration, and estimates ofreserves... UNITED STATES DEPARTMENT OF THE INTERIOR FRED A. SEATON, Secretary GEOLOGICAL SURVEY Thomas B. Nolan,...geology of the deposits, with consideration of mining methods and exploration, and estimates of reserves..._-_-_-________ Mountain Pass district, California..-____-.-_.._______ Central district, Missouri.._________________________..._________________________ Hansonburg district, New Mexico___________________ Kings Creek district, South Carolina.._______________ |  | | Journal (article/letter/editorial) | | ORES OF GILPIN E•soN COUNTY, COLORADO. S. BASTIN. INTRODUCTION. An exhaustive report on the economic...geology of Gilpin County and adjacentportionsof Clear Creek and Bouldercounties, Colorado,'byEdsonS. Bastinand...principalminingcentersare the following: Gilpin County ................................... ['Central...GILPIN COUNTY, COLORADO. 263 [Idaho Springs. /Gilson. -[Alice. [Dumont. Clear Creek County .........coarse-grained pegmatitic fa- Fine to medium{I.Idaho Springs Mostly quartzt Moderately dynamo-meta- morphosed |  | | Report (issue) | | Geology and Ore Deposits of the Front Range Colorado By T. S. LO\'ERING and E. N. GODDARD GEOLOGICAL...cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund ~ oopr is...__________________________________________ _ 1 Summary of mining districts---.---------------------Introduction...Metamorphic rocks ________________________ _ Idaho Springs formation _______________ _ Swandy ke hornblende...hornblende gneiss ____________ _ Quartzite at Coal Creek ________________ _ Igneous rocks _____________________________ |  | | Report (volume) | | UNITED STATES DEPARTMENT OF THE INTERIOR FRED A. SEATON, Secretary GEOLOGICAL SURVEY Thomas B. Nolan,...important were those in the Central City district, Colorado, from which about 300 tons of high-grade...Silver Cliff mine, Wyoming; the Jesse D No. 1 and No. 2 claims, Utah; and the Merry Widow mine, New Mexico...Utah; the Schwartzwalder (Ralston Creek) and Los Ochos mines, Colorado; the Early Day and Buckhorn claims...mines, Washington; the W. Wilson mine, Montana; the White King mine, Oregon; the deposits in the Pryor |  | | Report (volume) | | ............................................. Colorado........................................................................................ 102 District of Columbia .................................................................................. Idaho................................................................................................ Virginia......................................................................................... West Virginia.............................................. |  | | Report (volume) | | Deposits of the Freeland-Lamartine District, Clear Creek County, Colorado GEOLOGICAL SURVEY BULLETIN This...Deposits of the Freeland-Lamartine District, Clear Creek County, Colorado By J. E. HARRISON and J. D. WELLS...GEOLOGY AND ORE DEPOSITS OF CLEAR CREEK, GILPIN, AND LARIMER COUNTIES, COLORADO GEOLOGICAL SURVEY BULLETIN... UNITED STATES DEPARTMENT OF THE INTERIOR Fred A. Seaton, Secretary GEOLOGICAL SURVEY Thomas B. Nolan,...Pre-Cambrian rocks...____________________________ _ Idaho Springs formation___________________________ Biotite-quartz |  | | Report (volume) | | UNITED STATES DEPARTMENT OF THE INTERIOR FRED A. SEATON, Secretary GEOLOGICAL SURVEY Thomas B. Nolan...Siegenite (selenosiegenite) _ _ __ ___ ________ _____ Sphalerite (wurtzite) _________________________ Stannite...sulfide minerals, such as pyrite, chalcopyrite, sphalerite, galena, marcasite, and arsenopyrite. Selenium...deposits in the Silver City district, Idaho; Comstock Lode and Jarbidge district, Nev.; and Guanajuato, Mexico...with gold and silver are found in the Republic district, Wash., and in Radjang Lebong, Sumatra. The seleniferous |  | | Report (volume) | | estimates for uranium-vanadium deposits on the Colorado Plateau, by A. L. Bush and H. K. Stager__ __ ___...the Goodrich quartzite, Palmer area, Marquette County, Michigan, by R. C. Vickers. --(G) Wall-rock control...deposits in Golden Gate Canyon, Jefferson County, Colorado, by John W. Adams and Frederick Stugard, ...uranium deposits in the Red Desert, SweBtwater County, Wyoming, by Donald G. Wyant, William N. Sharp...in oolitic limestone near I /Tayoworth, Johnson County, Wyoming, by R. R. Guilinger and P. K. Theobald |  | | Report (volume) | | and East Calhoun Mines Central City District Gilpin County, Colorado GEOLOGICAL SURVEY BULLETIN 7 his...City District Gilpin County, Colorado By AVERY A. DRAKE, JR. GEOLOGY AND ORE DEPOSITS OF CLEAR CREEK...CREEK, GILPIN, AND LARIMER COUNTIES, COLORADO GEOLOGICAL SURVEY BULLETIN 1032-C This report concerns... UNITED STATES DEPARTMENT OF THE INTERIOR FRED A. SEATON, Secretary GEOLOGICAL SURVEY Thomas B. Nolan,..._____________________________________________ Sphalerite.-__-_____-________________-___-_--_-_-_----____ |  | | Journal (article/letter/editorial) | | Southern California, 4 of which are described below. Creek Sand from Redlands, Cali. This interesting sand...the So. Pacific R.R.). It comes from San Timateo Creek which starts near the divide between above two mountains... Dry Wash Sand from Palm Springs, Calif. This locality is at Palm Springs Siding, Riverside Co., Calif...from a drainage ditch on Marshall Street, near Seaton Lane, in Falls Church, Fairfax Co., Va. This is...have so many "witnesses" to their I D O S . " Virginia Beach in Princess Anne Co., and on the Atlantic |  | | Report (volume) | | Reconnaissance for Radioactive Minerals in Washington, Idaho, and Western Montana 1952-1955 By PAULL. WEIS, FRANK...UNITED STATES DEPARTMENT OF THE INTERIOR FRED A. SEATON, Secretary GEOLOGICAL SURVEY Thomas B. Nolan,...1922Reconnaissance for radioactive minerals in Washington,. Idaho, and western Montana, 1952-1955, by Paul L. Weis...occurrences ____ ----___________________________ 7 7 11 Idaho----------------------------------------------------~---...occurrences in Lemhi County______________________ Camas district, Blaine County__________________________ Rustler |  | | Report (issue) | | GEORGETOWN QlJADRANGLE (TOGETHER 'VITH THE EMPIRE DISTRICT) COLORADo· BY JOSIAH E. SPURR AND GEORGE H. GARREY..................._.......... . Distribution in Colorado ................................................. . . . . . . . . . . . . . . . . . . . 97 Idaho Springs auriferous area. __ ............. _.. _. _....Boulder County.............. . . . . . . . . . . . ......... . ....... . 103 Ores in Gilpin County ............................... . 103 Orcs in Clear Creek County ............................ . 103 Ores from |  | | Journal (issue) | | . . . . . . . . . 19 by J. A. Scovil The Machow mine, Tamobrzeg, Poland . . . . . . . . . . . .. .. ...after argentite, 10 cm tall, from the Las Chispas mine, Arizpe, Sonora, Mexico. Houston Museum of Natural...altered either by nature, by construction, by further mining, or by subsequent collecting. If there is the slightest...geologic setting and mineralogy of the mine site. The Harding mine catalog will provide researchers and...citations on the Harding mine and information about other collections of Harding mine specimens. The museum |  | | Report (issue) | | UNITED STATES DEPARTMENT OF THE INTERIOR FRED A. SEATON, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director..._________________ ___. Nevada ___________ Elko County. - ______ ... _ Star mine, Harrison Pass _____ ____ Pag« 59...63 Good Hope barite mine, Tuscarora Range _____ _ ._. ________ Humboldt County Golconda manganese-tungsten...Ltd., mine...... --_--______.______ Lincoln County__-__-----_-----_-----___ Tern Piute district.........district____ .________..__ Nevada Scheelite mine.. _ ______ Hooper No. 2 mine __ _____ _ _ Yankee Girl mine_______________ |  | | Report (volume) | | so successful. Allis-Chalmers Manufacturing Co. Mining Machinery Dept. OFFICES For Canadian MILWAUKEE...Canada THE MINES HANDBOOK Meeting tbe Needs of Mine and Smelter Hundreds of plants on both American...service from Superior Jaw Crusher Worthington mining equipment the from the standpoint of first cost...most wear, Worthington meets the needs of the mining industries with a complete line of products, from...(all types) Crushers Crushing Rolls NEW YORK Mine Pumps Oil Engines Sampling Machinery Screens Stamp |  | | Report (issue) | | endorsement by the U.S. Government. 'Denver, Colorado 1995 CONTENTS Geoenvironmental models of mineral...mineralized areas prior to mining, and conditions that result from mining and mineral processing. Other...as climate, and anthropogenic factors (including mining and mineral processing methods) mostly modify the...exploration, and assessment of abandoned mine lands and mine-site remediation. This compilation presents...from mining, mineral processing, and smelting. For example, the environmental signature of a mine site |  | | Journal (article/letter/editorial) | | LaramideMagmatic and HydrothermalActivity near Central City, Colorado A. P. DICKIN, Scottish Universities Research...hydrothermalminerals from the Central City and Idaho Springsminingdistricts,Colorado,have been analyzedfor Sr isotopecompositions...countryrocks. Introduction THE Central City and Idaho Springsmining districts of the central Front Range...studyarea there are extensiveoutcropsof the Boulder Creek and Silver Plume granite plutons,respectively,which...intrusion •-• Feldspathic gneiss • Granite (Boulder Creek, Silver Plume ) Monzonitesuite Outer edge of |  | | Report (issue) | | Natural Eesources, Division of Mines Colorado State Metal Mining Fund Board Connecticut Geological and... UNITED STATES DEPARTMENT OF THE INTERIOR FRED A. SEATON, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director..._ Heavy metals_______________________________ District and regional studies________________ Michigan...____________________________ Manganiferous zone of the Butte district, Montana___________________________ Manganese..._ Pima copper district, Arizona__________ Upper Mississippi Valley zinc-lead district. _ East Tintic |  | | Report (volume) | | California. THE MINES HANDBOOK, 1922 MACHINERY FOR MINE • MILL SMELTER Embodying recent developments...Hydraulic TurbinpM MILWAUKEE, Metallurgical Machinery Mining Machinery Perforated Oil l-:imini-- Metals I'liiiiliini:...are getting the most in service from Worthington mining equipment — :the most from the standpoint of first...power consumption. Worthington meets needs of the mining industries with a complete line of products, from...Compressor NEW YORK Crushing Rolls Air Compressors Mine Pumps Ball Mills Blast Furnaces Oil Engines Screens |
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