 | | Report (issue) | | Distribution of Beryllium Tin, and Tungsten in the Lake George area, Colorado Distribution of Beryllium Tin, and...and Tungsten in the Lake George area, Colorado By C. C. Hawley and W. R. Griffitts GEOLOGICAL SURVEY...------Boomer mine area -------------------~---------------------------Redskin area -----------------...----------------------------------------------------~ary Lee mine area ------------------------------------------------Geology...----------------------------------------------------Tappan Mountain area -----------------------------------------------Geology |  | | Report (issue) | | Geology and Beryllium Deposits of the Lake George (or Badger Flats) Beryllium Area, Park and Jefferson...Jefferson t:-1 Counties, Colorado g ~ s:p ~ I> li:tl ~ GEOLOGICAL SURVEY PROFESSIONAL PAPER 608-A g ... Geology and Beryllium Deposits of the Lake George (or Badger Flats) Beryllium Area, Park and Jefferson...Counties, Colorado By C. C. HAWLEY GEOLOGY AND ORE DEPOSITS OF THE SOUTHERN TARRYALL REGION PARK AND JEFFERSON...COUNTIES, COLORADO GEOLOGICAL SURVEY PROFESSIONAL PAPER 608-A A study of the nonpegmatitic beryllium deposits |  | | Journal (article/letter/editorial) | | COLORADO TOPAZ Topaz, Al Si0 (F,OH) is one of Colorado's better known gem minerals. Though Col orado...(PJM), 975 (TCM) Box 25046, Federal Center Denver, Colorado 80225-0046 A ccording to Cross and Hillebrand...discovery of Colorado topaz was made about 1880 by a Mr. Thiebald,* "a prospector of Colorado Springs."...been in the Crystal Park area. The largest fine-quality topaz specimens in Colorado occur in several separate...different publications; the correct name is Thiebaud (George White 1996, pers. com.). 306 ROCKS & MINERALS |  | | Journal (article/letter/editorial) | | examples are easily the most glamorous of the beryllium minerals after beryl and chrysoberyl. Exceptional...is analogous to hydroxylherderite, a calcium beryllium phosphate. Euclase also occurs in greisens, in...greisen deposits in the Badger Flats–Lake George area, Park County, Colorado. In the COLOR SPONSORS for... greisen pipes of Redskin Gulch euclase is associated with bertrandite, fluorite, muscovite, and quartz. Specific...Wall area (Eckel 1997). Euclase is also reported from Mount Antero pegmatites in Chaffee County. Other |  | | Journal (article/letter/editorial) | | EUCLASEIN GREISENPIPESAND ASSOCIA'IEDDEPOSITS, PARK COUNTY, COLORADO* Wrr.uelr N. Snanr, U. S. GeologicalSuntey...noted by the author in the greisen deposits of Park County, Colo., during fieid studiesin the summer,rf...Euclase in Park County, Colo., is in small pipe-shapedbodies of greisen in the Redskin Gulch area within...Hawley, 1960). rn the greisenpipes of the Redskin Gulch area, euclaseoccurs as small well-formed crystals...quartz-muscovite greisen (Fig. 1). The euclaseis closely associatedwith quartz, fluorite, muscovite (gilbertite) |  | | Journal (article/letter/editorial) | | northwest acro88 the cliff’s of Glen Cove to South Park and the Tarryall Mountains. Researchers have subdivided...Ihe Pikn P c i l Balhdilh dates for rocks in this area rnngc from I .7 to I .8 billion years. The zone...northeasterly-trending continentul Figure 2. Geologic map of the Colorado Front Range showing the Precambrian metamorphic...that had been uplifted during an earlier orogeny (mountain-building episode). Sediments deposited in the...Karistrom 1978; Lanthier 1978). Farther south in Colorado, sediments accumulated in decper-water rocks formed |  | | Journal (issue) | | tienspecimens including ore benmaliaa as mined by U. S. Beryllium Corporation. For full details see > 28 Marinduque—Copper...How Kerr-McGee drilled 90-inch diameter Ambrosia Lake air shaft > 34 JR-300 JACKDRILL Challenges Comparison...and capacity. Beryllium activity increases on Colorado’s Badger Flats as a third beryllium mineral—the...unit. Request Bulletin No. 062. shaft at Ambrosia Lake by Kerr-McGee shows advantages of safety, speed...Bulletin No. 063. WHAT'S GOING ON IN MINING Rocky Mountain Southwest Central and Eastern ; . Iron Ranges |  | | Report (issue) | | GEOLOGICAL SURVEY RESEARCH 1966 Chapter C AREA VI MHJERAL REL.QUF~C~ WPfiCCZ GEOLOGICAL SURVEY PROFESSIONAL...--------Miocene structural movements in Thomas County, Ga., by C. VV. Sever__________________________________________...upture phenomena in the Silver Plume Granite, Colorado, by F. T. Lee and T. C. Nichols, Jr_____________________...rock mechanics research on Silver Plume Granite, Colorado, by T. C. Nichols, Jr., and F. T. Lee--------...Uncbmpahgre uplift and Unaweep Canyon, west-central Colorado, by F. W. Cater_______________________ Par(cutin |  | | Journal (article/letter/editorial) | | by BRUCE R. DOE U.S. Geological Survey, Denver, Colorado INTRODUCTION T H E isotopic composition of lead...rocks of the continental interior region (Rocky Mountain provinces, southwestern New Mexico, South Dakota...whichever happen to be present near the surface in the area or, (2) if some other mechanism occurred, such as...shallow. A large triangular region comprising the Colorado Plateau and the Basin and Range province has not...Mountains Front Range Little Glass Mountain Clear Lake area Santa Lucia Mountains Southern California |  | | Journal (issue) | | first report of crocoite was from the Sverdlovsk area, Beresov district, in the Ural Mountains of the...that chromium was present in material from this area. Supplies from Tasmania are much less plentiful...Cloud mine in Arizona, though crystals from this area are generally too thin to facet; thicker crystals...India. In this country jet is obtained from the area around Whitby in North Yorkshire, where it is found...peaks obtained were evaluated by triangulation (Area = Height of peak x width at half height in mm). |  | | Report (volume) | | Research]. Paris, France. Colorado State Univ. Agr. Expt. Sta. Gen. Ser.-Colorado State University Agricultural...and Geology Bull. Idaho Bur. Mines and Geology County Rept.Idaho Bur. Mines and Geology Mineral Resources...Idaho Bureau of Mines and Geology Bulletin and County Report and Mineral Resources Report. Moscow, Idaho...-Institute of British Geographers Publication . .George Philip and Son, Ltd. London, England. Inst. Petroleum...Industries. The Pennsylvania State University. University Park, Pa. Phys. Rev.-The Physical Review. American Institute |  | | Report (issue) | | and James C. Wright _____ _ 4. Relation of the Colorado mineral belt to Precambrian structure, by Ogden...__________ _ 5. Pre-ore age of faults at Leadville, Colorado, by Ogden Tweto ____________________________________________...6. Pre-ore propylitization, Silverton caldera, Colorado, by Wilbur S. Burbank _______________________...subsidence in the Creede district, San Juan Mountains, Colorado, by Thomas A. Steven and James C. Ratte _____...Willden_ 12. Ettrly Tertiary volcanic geology of an area north and west of Butte, Montana, by Harry W. Smedes |  | | Book (volume) | | 56 ct), Sweet Home Mine, Colorado; colorless scheelite (19.66 ct), Kern County, California; octagonal...Vivid blue matched benitoite gems from San Benito County, California, consisting of 52 benitoites and 75...Dosen ONN/ QBI96-40247 Trade Distribution by Mountain Press Publishing Company P.O. Box 2399, Missoula...by and carry on the tradition established by Dr. George F. Kunz, of Tiffany & Company, New York City, whose...from government sources in the form of detailed area reports and corresponding geological maps. I have | | | Book (volume) | | rhoColorado; eolorless scheelite (19.66 cc), Kern Cowny, California;...Vivid blue matched benitoite gems from Sai, Benito County, California, consisting of 52 benitoites and 75...by and carry on the tradition established by Dr. George F. Kunz, of Tiffany & Cornpany, New York City,...fron1 government sources in the form of detailed area reports and corresponding geological maps. I have...Cantlin, Ellis, ID; Jeannette B. Carillo, Gen1 Center USA, El Paso, TX; Gary Christopher, The Prospectors Cache |  | | Book (edition) | | only about distance from a better known town in the area but also about the administrative regional units...abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...always included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada...abbreviations used are as follows: Mt. (mount or mountain), Mts. (mountains), R. (river), Is. (island),...Uintah County. Utah. and m (2.B. acanthite group). Monoclinic, C2/m, a,b,c Rio Blanco County. Colorado |  | | Book (edition) | | of Mines & Technology Rapid City, South Dakota GEORGE ROBERT RAPP, JR. Associate Professor of Mineralogy...references. 1. Mineralogy-Dictionaries. I. Rapp, George Robert, 1931joint author. II. Weber, Juµus, joint...ENCYCLOPEDIA OF MINERALS Willard Lincoln Roberts George Robert Rapp, Jr. - Weber Julius Color, page 10...satisfy this apparent gap, Willard Roberts and George Rapp, Jr. set about in 1967 to compile such a reference...extraneous colorants. (See "Colar of Minerals" by George Rapp, Jr. Hougl1ton Mifflin, 1971, 30 pp.) Most |  | | Book (edition) | | • Willard L. Roberts, Thomas J. Campbell, and George R. Rapp, Jr., with photographs edited by Wendell...Encyclopedia of minerals ~~cbe County Public Library Saguache, Colorado OEMCO For Refere nee Not to...Edition Willard Lincoln Roberts Thomas J. Campbell George Robert Rapp, Jr. Photo Editor: Wendell E. Wilson...Sagtiache Co1tntr Publlc I...ibran' Saguache, Colorado ~ VANNOSTRAND REINHOLD ~ - - - - N e w York.../ Willard Lincoln Roberts, Thomas J. Campbell, George Robert Rapp, Jr.: photo editor, Wendell E. Wilson |
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