 | | Report (issue) |
| Oxidized Zinc Deposits of the United States Part 3. Colorado By ALLEN V. HEYL GEOLOGICAL SURVEY BULLETIN...deposits and the resources of oxidized zin.c ores in Colorado UNITED STATES· GOVERNMENT PRINTING OFFICE, WASHINGTON...19180xidized zinc deposits of the United States. Part 3. Colorado. Washington, U.S. Govt. Print. Off., 1964. vi...Bibliography : p. 88-91. 1. Zinc ores-Colorado. 2. Zinc mines and mining-Colorado. I. Title. (Series) For sale..._________ Rifle Creek district_ _ _ _____________ _ ___ ____ __ ________ __ __ __ Clear Creek County_____ |
 | | Report (volume) |
| Deposits Of the Lawson-DumontFall River District Clear Creek County Colorado By C. C. HAWLEY and FRANK BAKER...of the general geology and ore deposits of the district which forms the northwestern part of the important...gneiss.________________________________________ Quartz gneiss_ _ _ __ ____ _____ ____________ ______ __...---------------Quartz diorite gneiss and related rocks_ _ ___ ___ ___________ Quartz diorite _____________...-------_______ Biotite-quartz monzonite porphyry______________________ Biotite-quartz latite porphyry___ |
 | | Report (issue) |
| PROSPECTS, LAWSON-DUMONT-FALL RIVER DISTRICT, CLEAR CREEK COUNTY, COLORADO By C. C. Hawley and Frank Baker...Mine descriptions « Lawson area, north of Clear Creek Larger mines in the Red Elephant group Boulder Nest-Free...prospects tabular summary Lawson area, south of Clear Creek Larger mines American Sisters mine--Bellevue-Hudson...51 Contents Page Lawson area, south of Clear Creek Continued Other mines Climax tunnel Cymric tunnel--...prospects tabular summaryDumont area, north of Clear Creek« Larger mines- - , , , Albro mine « « . Hiawatha |
 | | 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...________________ _ Quartz-mica schist _____________ _ Quartz-hornblende schist _______ _ Quartz-hornblende gneiss |
 | | Report (issue) |
| organization is carrying on for the direct advancement of mining interests throughout the country than can readily...oil resources of the Santa Maria oil district, Santa Barbara County, Cal., by Ralph Arnold and Robert Anderson...Jordan,.jr. 338. The iron ores of the Iron Springs district, southern Utah, by C. K. Leith and E. C. Harder...Phalen. 350. Geology of the Rangely oil district, Rio Blanco County, Colo., with a section on the water supply...Hess. 357. Preliminary report on the Coalinga oil district, Fresno and Kings counties, Cal., by Ralph Arnold |
 | | Report (issue) |
| Deposits Central Part of the Front Range Mineral Belt Colorado By P. K. SIMS and others GEOLOGICAL SURVEY PROFESSIONAL...______________________________ _ History of uranium mining and production ____________ _ Geologic setting...________ -----------Central City district _____________________ ------Quartz Hill-upper Russell Gulch area... _ West Flack mine __________________ _ ~ercer County mine ______________ -German and Belcher mines ______________...descriptions-C~:mtinued Lawson-Dumont-Fall River district, by C. C. Hawley and F. B. Moore _____________________________ |
 | | Report (volume) |
| important were those in the Central City district, Colorado, from which about 300 tons of high-grade...Utah; the Schwartzwalder (Ralston Creek) and Los Ochos mines, Colorado; the Early Day and Buckhorn claims...deposits in the Dripping Spring quartzite, Gila County, Ariz. According to Nininger (1954, p. 43), as...areas in Saxony; the Beaverlodge district, Canada; the Cornwall district, England; the Guarda and adjacent...States except for some in the Central City district, Colorado were discovered since the mid-1940's. The |
 | | Report (issue) |
| GEOLOGICAL SURVEY Locatable Mineral Reports for Colorado, South Dakota, and Wyoming provided to the U.S.............................................. 1 COLORADO ................................................San Isabel and White River National Forests Lake County Land Exchange Offer (Iocmin40) ......................... 47 White River National Forest Dillon District Land Exchange Joint Venture (Iocmin38) ................................... 94 White River and Gunnison National Forests Sylvan Lake Land Exchange (Iocmin42) |
 | | Report (issue) |
| GEOLOGY AND ORE DEPOSITS OF TILE LEADVILLE MINING DISTRICT, COLORADO BY S. F. EMMONS, J. D. IRVING, AND G...anticline _ Origin of the Iron-Mikado fault 61 Colorado Prince anticline _ group _ 95 61 Mosquito Gulch...fold-fault _ Faults in the eastern part of the district 95 62 Kokomo syncline_ Faults southeast_ of _..._ Leadville 62 the_ Fryer Hill folds _ 62 district _ 95 Warping and drag along normal faults, _ _ _ 96...Area bounded by Weston, Colorado Prince, 105 Wolf tone mine _ 74 Silent Friend, and Winnie-Luema faults_ |
 | | Book |
| .3 COLORADO. of COLORADO. J. S. l GEORGETOWN, COLO. GEORGETOWN COURIER PRINT. 1887. 3 Bancroft...From a mineralogical point of view the wealth of Colorado exceeds that of In the metallic minerals almost...to in the following pages Proceedings of the Colorado Scientific Society. Proceedings of the Academy...the U. S. Geological Survey. J. GEORGETOWN, COLORADO, January, 1887. S. RANDALL. : MINERALS...gravel of streams and in veins. The veins of Gilpin County are especially noteworthy for the amount of gold |
 | | Report (volume) |
| it helpful to refer to Survey Bulletin 507, "The mining districts of the western United States," and to...exhausted by mining or quarrying. Deposits of minerals of wide distribution, such as quartz and calcite...because they occur in sufficient quantity to warrant mining for their usual products but because they furnish...A. F. Rogers, Stanford University, Palo Alto. Colorado.........Prof. R. D. George, Boulder. Connecticut...See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found |
 | | Report (issue) |
| 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...__________________ Silver Plume(?) granite__ _______ _________ Quartz-mica diorite_____________________ 1 1 I 1 2 2...__ Iowa Gulch porphyry _______-__-__-_-___-___ Quartz diorite porphyry. ________-_-_-_---___ Age relations...Quaternary (?) igneous rocks____ _______ Little Union quartz latite_------_---------__Rhyolite and rhyolite |
 | | Report (issue) |
| and Grade-Tonnage Information on Low-Sulfide Au-Quartz Veins by James D. Bliss and Gail M. Jones Open-File...mineralogy of deposits classifed as lowsulfide Au-quartz veins were compiled for deposits found throughout...tabulation have characteristics of low-sulfide Au-quartz veins as described in Berger (1986). These deposits...the ore. Sulfides likely to be present include pyrite, galena, sphalerite, and arsenopyrite (Berger,...in detail. Alteration minerals associated with quartz in these deposits include carbonates (ankerite |
 | | Report (volume) |
| ............................................. Colorado........................................................................................ 102 District of Columbia ....................................to refer to Geological Survey Bulletin 507, "The mining districts of the western United States," and to...exhausted by mining or quarrying. Deposits of minerals that are widely distributed, such as quartz and calcite...because they occur in sufficient quantity to warrant mining for their usual products, but because they furnish |
 | | Report (issue) |
| organization is carrying on for the direct advancement of mining interests throughout the country than can readily...Pisgah........ ...... N.C.-S.C..... 148 Joplin district...... Mo.-Kans .... 476 149 Penobscot Bay ...Washington County, Pennsylvania, by F. G. Clapp. No. 304. Oil and gas fields of Greene County, Pennsylvania...Preliminary report on the Santa Maria oil district, Santa Barbara County, California, by Ralph Arnold and Robert...and oil resources of the Summerland district, Santa Barbara County, California, by Ralph Arnold. No. 322 |
 | | Report (volume) |
| . 234 " y { " ,-t .. .~,:",. I " , COLORADO "or.! _ +, (~ STATE OF .~ :'(' COL~ADO /... BULLETIN 40 RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BlaLlllGRAPHY by James L. Nelson-Moore,...Energy COLORADO GEOLOGICAL SURVEY DEPARTMENT OF NATURAL RESUURCES STATE OF COLORADO DENVER, COLORADO 1978...ete 11 st r ng of rad i aaet 1ve occurrences 1n Colorado, with a comprehensive blbi iography and bibliographic...on the Colorado Plateau sparked several periods of exploratIon that ultimately led to a mining "boom ll |
 | | Report (volume) |
| Resources of the Wilson Mountains Primitive Area, Colorado By CALVIN S. BROMFIELD, U.S. GEOLOGICAL SURVEY...Wilson Mountains Primitive Area and vicinity, Colorado. This bulletin is one of a series of similar reports...___________________________________ Trout Lake mining district________.._____________-___-----_San Bernardo...prospects______________________-____-----------Mount Wilson mining district________-----------_-_-_------Silver Pick...Wilson Mountains Primitive Area and vicinity, Colorado-._____________ In pocket 2. Map showing sample |
 | | Book (edition) |
| Tell from Gold, and from Diamond All the Pyrites Quartz to How — — — Minerals Grouped According Useful...of ENGINEERING STATES Mining EDITOR AND PH. OF Statistics; THE MINING AUTHOR JOURNAL; OF ...Then, again, the are valuable, been sunk in mining mon How metals. to of iron, zinc the rarest...ACCORDING GROUPED common thin THE JACK - KNIFE QUARTZ SPECI- KEY. COLOR. FIRST not WITH A MINERALS...THIS stone is a mixture of several kinds of quartz, brown red, in zigzag, layers ses; not very |
 | | Report (issue) |
| Smith. Director Professional Paper 138 MINING IN COLORADO A HISTORY OF DISCOVERY, DEVELOPMENT AND PRODUCTJON...location, area, and organization of the mining counties of Colorado _________________________ _ Adams County_-..._____________________ _ Alamosa County __________________________ _ Arapahoe County _________________________...Archuleta County _________________________ _ Baca CountY-----------------------------Boulder CountY------...CountY----------------------~----Chaffee County _____________________·______ _ Clear Creek County _______________________ |
 | | Report (volume) |
| ......................................... Gold-quartz lode mines.......................................... Blue River mining region......................................... Bohemia mining region.......................................................... Mining conditions................................................................................. Silent Friend mine..........................................Continued. Gold-quartz lode mines Continued. Page. Grants Pass quadrangle and Medford district........... |
 | | Report (issue) |
| thorium or rare-earths minerals_ Brannerite-bearing quartz or siliceous veins _______ _ Davidite-bearing veins...predecessor organization, the Manhattan Engineer District ; and, to a lesser extent, by staff members of...United States. The pre-1940 history of uranium mining and geology is concerned largely with veins in...such areas as the Front Range mineral belt of Colorado; the Boulder batholith area, Montana ; the Sierra...Marysvale district, Utah. All the Western States, including Arizona, California, Colorado~ Idaho, Montana |
 | | 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...Quartzite at Coal Creek ________________ _ Igneous rocks _____________________________ _ Quartz monzonite gneiss...gneissic aplite ________ _ Quartz diorite and associated hornblendite_ Boulder Creek granite _________________ |
 | | Report (issue) |
| AND ORE DEPOSITS OF THR BRECKENRIDGE DISTlliCT, COLORADO BY :b_,REDERICK LESLIE RANSOME 'f3lfWASHINGTON..._.......................... . Situation of the district. ....... ____ . __ .. __________ ................ _. ___ ....... _..... _... _..... __ .. The district. __ ... ____ .... __ ... ___ ... ___ .. ____ .... _. __ ..... __ . _.. __ ...... . History o.f mining .. ___ .. ______ .... _. ________________ . __...__ .. _._ ........................... _..... .. Quartz monzonite porphyry ..... _._ ......... _.. __ |
 | | Report (issue) |
| Dean Farris from mine dump waste in the Gold Hill district. The actual diameter of the button in the lower... . . . . . . . . . . . . . . . . . . . Kirwin district . . . . . . , . . . . . . . . . . . . . . . ....City) district .. . . . . . . . . . . . . . . . . . . . . . . . . 13 16 Stinkingwater district . . ... .. .. . ... . . . . . . . . . . . . Sunlight district . ... . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . • .. 37 Goose Creek area . . . . _ __ . . . _ .. . _ __ . _ . _ . . |
 | | Journal (article/letter/editorial) |
| GEOCHEMISTRY OF SPHALERITE, CENTRAL CITY DISTRICT, COLORADO P. K. SIMS AND P. B. BARTON, JR. with a section...part of a larger study of the Central City district, Colorado,have been undertakento learn somethingof...uentof the gold- and silver-rich veins of the district. It was depositedduring one stage of mineralization...environmentsof the concentricallyzoned district except in the core. On a district-wide basis it occurs in three...assemblages: sphalerite-pyrite-chalcopyrite-tennantite-galena, sphalerite-pyrite-tennantite-galena,and |
