 | Wallace, S. R., MacKenzie, W. B., Blair, R. G., Muncaster, N. K. (1978) Geology of the Urad and Henderson molybdenite deposits, Clear Creek County, Colorado, with a section on a comparison of these deposits with those at Climax, Colorado. Economic Geology, 73 (3) 325-368 doi:10.2113/gsecongeo.73.3.325 | Journal (article/letter/editorial) | | ClearCreekCounty,Colorado,with a Sectionon a Comparison of TheseDepositswith Thoseat Climax, Colorado STEWARTR...The Urad and Hendersonstockworkmolybdeniteorebodiesat Red Mountain, Clear Creek County,Colorado,are relatedto...specificallyrelated to different intrusiverocksof the complex. The Urad orebodywas depositedfirst and at shallowdepth. The...within a mile of the north-northeast-trendingBerthoud Pass fault. This fault is the major structural element...constitutethe buried stock are, from oldest to youngest,the Urad porphyry,the Primos porphyry,and the Hendersongranite |  | | Journal (article/letter/editorial) | | pp. 3–37 Henderson Porphyry Molybdenum System, Colorado: I. Sequence and Abundance of Hydrothermal Mineral...California 94305-2115 Abstract At Henderson, Colorado, 12 rhyolitic stocks of Oligocene age crystallized...and high-temperature alteration-mineralization by mine geologists and collaborators (Shannon et al., 1982;...Geologic Setting and Intrusive History Henderson and Urad constitute a stacked pair of Climaxtype porphyry...Mountain, Dailey-Jones Pass mining district, in the Front Range of the Rocky Mountains, Colorado (Wallace |  | | Journal (article/letter/editorial) | | (eastern) Oregon-Idaho-(western) Montana, (4) Colorado-NewMexico, (5) Nevada-southern California,and...productivedepositsare locatedin the southernRockyMountains(Urad-Henderson,Climax and Questa) and in the Interior...Rate (t.p.d.)x BritishColumbia 1967 46,000,000 Mine Alice (B. C. Molybdenum) 8,000 Company British...British Columbia,Canada (Noranda Subsidiary) Urad- Colorado 13,000,000 5,000 303,000,000 30,000 American...Y., U.S. A. 19672 (1975) Henderson Climax Colorado 1918 400,000,000a 42,000 American Metal Climax |  | | Report (volume) | | --------------------------- Rowley or Reliance mine, by J. A. ~acKallor_____________ PimaCountY----...claims_______________________________________ Pinal County _________________________ ------- ______ -----__...-----__ Santa Cruz CountY---------------------------------------Santo Ni:iio mine, by D. H. Kupfer__...____ Yavapai CountY----------------------------------------------Copper Basin district _______ ------...--------------__ Commercial mine ______ ------------------------------__ Copper Hill mine __________ -------- |  | | Report (issue) | | constructed from the bits and pieces exposed in the Colorado mineral belt and the San Juan volcanic field....matching the exposed mineralized rocks of a mining district with corresponding parts of a model (Briggs...Steven, 1971) of the southern San Juan Mountains of Colorado. The Model The porphyry-metal edifice 2 is an...showing the parts of edifices exposed in the Crater Creek Platoro caldera area field. -3- of the'San Juan...a metalliferous hydrothermal fluid (Hemley and Jones, 1964) that separated from the magma in response |  | | Journal (article/letter/editorial) | | Sweet Home rhodochrosite specimen mine, Alma District, Central Colorado: the porphyry molybdenum–fluorine...hrosite–fluorite in the Sweet Home Mine, Alma District, Colorado were originally mined for silver starting...For the last 13 years up until 2004, however, the mine has produced world-class rhodochrosite specimens...the nearby area; (4) a small pegmatite within the mine with an age (25.9±0.3 Ma) coincident with mineralization...Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, USA e-mail: pbartos@mines | | | Journal (article/letter/editorial) | | Sweet Home rhodochrosite specimen mine, Alma District, Central Colorado: the porphyry molybdenum–fluorine...hrosite–fluorite in the Sweet Home Mine, Alma District, Colorado were originally mined for silver starting...For the last 13 years up until 2004, however, the mine has produced world-class rhodochrosite specimens...the nearby area; (4) a small pegmatite within the mine with an age (25.9±0.3 Ma) coincident with mineralization...Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, USA e-mail: pbartos@mines |  | | Journal (article/letter/editorial) | | developchemicalfingerprintsto the pluton(Thompson Creek),marginalannularbodrecognizedifferent alterationassemblages...model for molybdenitedepositsasso- (Little Boulder Creek and Cannivan). Granodiorite ciatedwith graniticsourcerocks...molybdenitesystems The sourceplutonsfor Climax, Henderson-Urad, and granitemolybdenitesystems--also showsignificant...tectonicsettingat the time and Mount Emmons-Redwell Basin, Colorado, are of formation,orebodygeometry,and trace element...monzonite 4, Climax, Colorado;Climax stock--graniteporphyry 5, Henderson, Colorado;Hendersongranite--graniteporphyry |  | | Journal (article/letter/editorial) | | 39–72 Henderson Porphyry Molybdenum System, Colorado: II. Decoupling of Introduction and Deposition...hydrothermal mineral assemblages developed at Henderson, Colorado, as 12 rhyolitic stocks of Oligocene age were...Geologic Setting and Intrusive History Henderson and Urad constitute a stacked pair of Climaxtype porphyry...high-silica rhyolite at Red Mountain, Clear Creek County, Colorado (Wallace et al., 1978; White et al....Wallace, 1995). The older, shallower, and much smaller Urad deposit (Fig. 1) is hosted by stocks of rhyolite |  | Soulliere, S.J., Toth, M.I., Bankey, V.L., Smith, S.M., Pitkin, J.A., Cookro, T.M., Robinson, Roberts L.N., Molnia, C.L., Wandrey, C.J., Law, B.E., Spencer, C.W., Barker, C.E., Dersch, J.S. (1996) Resource potential and geology of the Routt National Forest and the Middle Park Ranger District of the Arapaho National Forest, Colorado. Open-File Report Vol. 1996 (96-82) US Geological Survey doi:10.3133/ofr9682 | Report (issue) | | Unconsolidated Deposits ...................... Colorado Mineral Belt ................................................................. Hahns Peak Mining District ...................................... Cam........................................ Henderson-Urad Molybdenum Area ..................................Bear Creek-Lone Pine Creek Anomalous Area .......................... Red Canyon-Crystal Mining District...Beaver Creek Area (Farwell Mining District) ........................... Dailey (Atlantic) Mining District |  | | Report (volume) | | ____ Molybdenite_____________________________ Colorado ____________________________ New Mexico _____...quartz veins: A, From Railroad Creek near Lake Chelan, Okanogan County, Wash.; B, From a prospect near...monzonite in the Deep Creek Mountains, 4 miles south of Gold Hill, Tooele County, Utah; B, Sericitized...(?) in granite, George Fast's mine, near La Trinidad, Sahuaripa district, Sonora, MexicoVII. Ends of radial...molybdenite from a replacement deposit in gneiss, Ogden mine, Edison, N. J____ I.. A, Tabular yellow crystals |  | | 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 |  | | Journal (article/letter/editorial) | | magmatic-hydrothermal and hydromag- the Cabeza de Vaca district (Sillitoe and Sawkins, matic processesand therefore...deposit Childs-Aldwinklepipe in the Copper Creek district typesare generallyabsentfrom arc terranes,amag-...thoughthe absenceof examplesin Table 2 younger Creek districtis underlainby a mineralizedopenfisthan...Golden Sun- light, Montana Victoria, Nevada Copper Creek, Calcareous sedi- ments,latite porphyry Limestone... Calc-silicate Pyrite, chalcopyrite, bornitc, galena,sphalerite Pyrite, chalcopyrite Quartz, barite |  | | Journal (article/letter/editorial) | | 553-566 Structural Controls in the Red River District, New Mexico K. F. CLARK Abstract Granite stocks...east-northeasttrending graben in the Red River district, New Mexico. The stocksare localized in an area...Introduction RECENT mapping in the Red River district, New Mexico, reveals the overall structural fabric...feet. The Red River and its tribu- tory, Cabresto Creek, located approximately three miles to the north...apparenton the higher peaksnorth and southof the district,are generallyabsent. However the area has view |  | | Journal (article/letter/editorial) | | geologists (Wallace et al. 1978) investigated the Urad mine which was mined for molybdenite~luartz veins in...conclusion that these veins are associated with Urad quartz-feldspar porphyry, but disseminated stockwork...at a depth of 510m near Mt. Emmons in the same Colorado mineral belt in 1970. The orebody occurs at the...of the island arc, the Uchinotai of the Kosaka mining area (Fig. 2) are rather shallow blind ore Table...- ~ ' - ~ - - ~ ' '~'~ ~ , ~ i a r k Delaware mine vein outcrop t - - ~ zn÷AQ -- p b + F ~- -o/ |  | | Journal (article/letter/editorial) | | August 2013 BARBARA L. MUNTYAN P.O. Box 495 Ouray, Colorado 8 I427 hodochrosite, a manganese carbonate with...Rhodochrosite has also been found in many localities in Colorado, particularly in the mines of the San luan Mountains...it i s one of the most recognized and coveted Colorado minerals. partiY DO e the presence of a mix...occurs in significant amounts in many mining districts of the Colorado mineral belt, a large, elongated,...extreme southwestem comer of Colorado. Most of the metal mining in Colorado has been within this belt since |  | | Journal (article/letter/editorial) | | 0.75 inch on edge, from the Henderson mine, Clear Creek County. Figure 2 (right). Green fluorite encrusted...Mountain Wilderness area near Columbine Lake, La Plata County; largest crystal measures 1.25 inches on edge;... FLUORITE BARBARA L. MUNTYAN Ouray County Museum Ouray, Colorado 81427 Mineral photographs by John R...locations in Mexico; in Elmwood, Smith County, Tennessee, and in Hardin County, Illinois, in the United States;...eastern Russia. It also occurs in many localities in Colorado, where it is found in colors ranging from pale |  | | Journal (issue) | | Institution feature articles Mordenite at Wolf Creek Pass............................... 272 by Marvin...Marvin Hanner Additions to the Ore Mineralogy of Colorado....................................................by Donald Grybeck Crystallized Minerals of the Colorado Mineral Belt....................................collector and dealer is be coming less and less clear. A few people m ake their living 100% through dealing...had achieved considerable fame, and the right to mine diopside was obtained that year by G eorge L. English |  | Lüders, Volker, Romer, Rolf L., Gilg, H. Albert, Bodnar, Robert J., Pettke, Thomas, Misantoni, Dean (2009) A geochemical study of the Sweet Home Mine, Colorado Mineral Belt, USA: hydrothermal fluid evolution above a hypothesized granite cupola. Mineralium Deposita, 44 (4) 415-434 doi:10.1007/s00126-008-0221-3 | Journal (article/letter/editorial) | | geochemical study of the Sweet Home Mine, Colorado Mineral Belt, USA: hydrothermal fluid evolution above...fluorite–rhodochrosite mineralization at the Sweet Home Mine occurred coeval with the final stage of magmatic...Geosciences, Virginia Tech, Blacksburg, VA 24061, USA T. Pettke Institute of Geological Sciences, University...Switzerland D. Misantoni Colorado Calumet Company Inc., P.O. Box 1169, Golden, CO 80402, USA al assemblage was...quartz demonstrate that fluids from the Sweet Home Mine are enriched in incompatible elements but have considerably |  | | 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...hornblende gneiss ____________ _ Quartzite at Coal Creek ________________ _ Igneous rocks _____________________________...Quartz diorite and associated hornblendite_ Boulder Creek granite _________________ _ Pikes Peak granite |  | | Report (volume) | | Peaks Study Area, k Boulder and Grand Counties, Colorado By ROBERT C. PEARSON, U.S. GEOLOGICAL SURVEY,...national forest lands in the Indian Peak study area, Colorado, that are being considered for wilderness designation...Peaks study area, Boulder and Grand Counties, Colorado. (Studies related to wilderness) (Geological Survey...mineral resources Colorado Boulder Co. 2. Mines and mineral resourcesColorado Grand County. I. United States..." Granitic gneiss Gneissic granodiorite Boulder Creek Granodiorite - Pocrmofifo Jrcglllatll/c . ... |  | | 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...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...intrusive rocks and associated ore deposits in the Colorado Mineral Belt / by Charles G. Cunningham ... [et |  | | Report (volume) | | Geology of Uranium Deposits in the Front Range, Colorado By P. K. SIMS and D. M. SHERIDAN With sections...mines_______________________________________ Boulder CountY----------------------------------~-----------Jamestown...Generalfeatures--------------------------------------Blue Jay mine, by R. U. King__________________________ Fair Day...mine________________________________________ Nations Treasure mine, by R. U. King___________________ Victory group...Description of principal mines-Continued Boulder County-Continued Other areas __________________________ |  | | Journal (article/letter/editorial) | | Tourmaline on quartz, Cruzeiro mine, Minas Gerais, Brazil. Los Angeles County Museum of Natural History specimen...Pelt photo. MarcWApril: Beryl and calcite, La Pita mine, Maripi Boyacii, Columbia. Cal Graeber, Leonard...Quartz (amethyst), near Badger Creek, north of Coaldale, Fremont County, Colorado. Dave Bunk specimen, Jeff...(Herkimer “diamonds’’), Treasure Mountain Diamond mine, near Little Falls, New York. Uli Bahmann specimen...SepteniberlOctober: Gold, Smuggler Union mine, Telluride district, Colorado. Colorado School of Mines Museum specimen |  | | Report (issue) | | Henderson Mine, Colorado By George A. Desborough U. S. Geological Survey Denver, Colorado, 80225 and...Extractive Research and Development, Inc. Golden, Colorado, 80401 Open~File Report 80-661 1980 This report...units vhich occur at the Henderson molybdenum mine, Colorado. The major minerals in fresh Henderson host...carbonates, calcite, fluorite, sericite, sphalerite, and galena, which typically occur in quartz veins and veinlets...igneous host of molybdenum ore at the Henderson mine. This deposit has been extensively drilled and |
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