 | | Report (issue) | | Peninsula, Mich. 10. Porphyry molybdenum ore, Colorado 11. Zinc ore, Edwards, N.Y. 12. Manganese nodules...Elements in the Wet Mountains Area, Fremont and Ouster Counties, Colorado By THEODORE J. ARMBRUSTMACHER GEOLOGY...elements in the Wet Mountains area, Fremont and Custer Counties, Colorado. (Geology and resources of thorium...16:1049-F 1. Thorium ores—Colorado—Wet Mountains Region. 2. Earths, Rare—Colorado—Wet Mountains Region. 3...Mountains Region. 4. Mines and mineral resources—Colorado—Wet Mountains Region. I. Title. II. Series. III |  | | Journal (article/letter/editorial) | | ites fromthe Wet MountainsArea, Fremont and Custer Counties,Colorado TnEOr)ORE J. ARMBRUSTMACHER Abstract...with alkalic rocks of the McClure Mountain and Gem Park Complexes, andthecomplex at DemocratCreek,canbeclassified...hornblendegneisses, associated with and cuttingrocksof the Gem Park and amphibolites--andPrecambrianintrusivegran...Subsequentwork at the Gem Plumeage (1.45 b.y.) (Taylor et al., 1975a,b) (Fig. Park Complex(Parker and Sharp...mappedwithin the Iron Mountainmafic- Complex,the Gem Park Complex,and the complex ultramaficportion of the McClure |  | | Report (issue) | | Associated Carbonatites of the Gem Park Complex, Custer and Fremont Counties, Colorado GEOLOGICAL SURVEY PROFESSIONAL...ASSOCIATED CARBONATITES OF THE GEM PARK COMPLEX, CUSTER AND FREMONT COUNTIES, COLORADO S a n g re d a C r...,,'*^ ,,' -aCr* Gem Park, Colo. View northwestward from Democratic Mounta GEM MOUNTAIN Sawatch Range...-Cbtrfplex ving pyroxenite and gabbro of the Gem Park Complex. -« "*» +** 4ifa. Mafic-Ultramafic Igneous...Associated Carbonatites of the Gem Park Complex, Custer and Fremont Counties, Colorado By RAYMOND L. PARKER and |  | | Journal (article/letter/editorial) | | Mountain, Idaho; (4) Wet Mountains, Colorado; (5) Powderhorn, Colorado; (6) Laughlin Peak, New Mexico; (7)...Powderhorn district and Wet Mountains in southern Colorado; the Mountain Pass area in southern California;...amount shown; N.D.--no Thorium veins District or County area State Dipof data] Samples analyzedRocks... Staatz (1972). steep Powderhorn Gunnison Colorado 2004- 4-3500 .2 -18 Steep 33 .01 - 4.3 Yes...(1965); Wallace and Olson (1956). Wet Custer Colorado 4004- 1-5000 <.01-50 Steep 100 ,02 -12.5 |  | | Report (issue) | | ...................... . Powderhorn District, Colorado ................. . Mountain Pass, California...Area, Colorado ................ . Bearpaw Mountains, Montana ................. . Ravalli County, Montan81-...Montan81- Lemhi County, Idaho .. Magnet Cove and Potash Sulfur Springs, Ar· kansas ........................Bearpaw Morntains, Mont.; (5) Ravalli County, Mont., and Lemhi County, Idaho; and (6) Magnet Cove-Potash...one such area, the Dismal Swamp placer in Elmore County, 10 EXPLANATION I 3 1 1 1 1 1 Placer locality |  | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) | | Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |  | | Report (issue) | | ___________________ -_-----Lode and placer gold deposits, Mohave County _______________________ _ California ________________________...studies at Bodie ___________ _ Mother Lode, Amador County __________ _ Tertiary gravels, Nevada City area...12 12 12 13 Page Studies on land - Continued Colorado __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _...Cripple Creek ______ Niobium and other elements, Gem Park Complex ________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Silver..._---Central North Carolina _-------------Moore County __ ---------- -- ------South Carolina ____ -- __ |  | | Journal (issue) | | Marvin Hanner Additions to the Ore Mineralogy of Colorado.................................................by Donald Grybeck Crystallized Minerals of the Colorado Mineral Belt....................................with intrinsic value such as precious metals or gem materials. Also, a crystal group should have w hat...this time. Cited References KUNZ, G.F. (1892) Gem s and Precious Stones of North Am erica, Ed. E. Olsen...Lapidary Journal, 27, No. 7, 1040. ITALIAN MOUNTAIN, COLORADO by M. M. Groben Italian M ountain (elevation 13 |  | | 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...association of radium, uranium. and vanadIum on the Colorado Plateau sparked several periods of exploratIon |  | | Report (issue) | | Series 30 Bibliography and Index of Colorado Geology, 1984-1989 Colorado Geological Survey Department of...Resources Denver, Colorado 1990 Information Series 30 Bibliography and Index of Colorado Geology, 1984-1989...Institute under contract to the Colorado Geological Survey Colorado Geological Survey Department of...of Natural Resources Denver, Colorado 1990 ii FOREWORD In recognition of the need to more effectively...published literature on the state's geology, the Colorado Geological Survey is pleased to release Information |  | Weiland, E.F., Connors, R.A., Robinson, M.L., Lindemann, J.W., Meyer, W.T. (1982) Geochemical and geostatistical evaluation, Arkansas Canyon Planning Unit, Fremont and Custer Counties, Colorado. Open-File Report Vol. 1982 (82-462) US Geological Survey doi:10.3133/ofr82462 | Report (issue) | | Canyon Planning Unit Freemont and Custer Counties, Colorado E. F. Weiland Open-File Report 82-462 1982 ...EVALUATION ARKANSAS CANYON PLANNING UNIT FREMONT AND CUSTER COUNTIES, COLORADO VOLUME I Prepared for: United States...States Bureau of Land Management Colorado State Office Prepared by: E.F. Weiland R.A. Connors M.L. Robinson...Resources Inc. 1626 Cole Blvd., Suite 120 Golden, Colorado 80401 April 10, 1981 VOLUME I TABLE OF CONTENTS...YA-553-CTO-100 with the Bureau of Land Management, Colorado State Office. The study was based on a geochemical- |  | | Report (issue) | | intrusive rocks in the northern Wet Mountains, Colorado, by R. L. Parker and F. A. Hildebrand________...Gap Volcanic Member of the Middle Park Formation, Middle Park, Colorado, by G. A. Izett, R. B. Taylor, and...Schultz and J. C. Wright_ 199. Sampling a zoned galena crystal for lead isotope study, by R. S. Cannon...Grantz, and M. C. Blake, Jr_____ 204. Syenite complex older than the Idaho batholith, Big Creek quadrangle...rocks at the Georgia Nuclear Laboratory, Dawson County, Georgia, by J. W. Stewart..--_____________._. |  | | Book | | Lengai natrocarbonatite volcano and the Ilimaussaq complex, but comparative studies on alkaline rocks have...other hand many occurrences are so extensive and complex that the descriptions will only be adequate to...Deloro stock 1 0 1 Sulli vc1n Island 102 K i pawa complex and Lake Tortue 103 Northwestern Quebec dykes 1...Baie-des-Moutons 1 59 K i n g ' s Point 1 60 La Scie complex otre Dame Bay area 161 1 62 Topsails 163 H a re...marbles of Lower Palaeozoic age, or older. The complex consists of an outer zone of quartz monzonite and |  | | Report (issue) | | metamorphosed hydrothermal system at Pine Canyon. Piute County, Utah. U.S.A. [abs.]: Mineralogical Society (London)...mineralogy of the Cerrillos copper deposit, Santa Fe County, New Mexico: New Mexico Geological Society Guidebook...1988. Ag-Au-Te mineralization in the Ratagain complex, northwest Scotland: Transactions Institution of...a satellite intrusion of the Palabora igneous complex, South Africa: Economic Geology, v. 81, p. 143-155...for the tectonic development of the southeastern Colorado Plateau boundary: Journal of Geophysical Research |  | | Book | | Netherlands. Special regulations for readers in the USA — This publication has been registered with the Copyright...made in the USA. All other copyright questions, including photocopying outside of the USA, should be referred...colour index. This is, without doubt, the most complex lithologie association to be handled from the point...or in the mine workings at all. The Climax Mo complex is the best known example. Here three generations...150-200 km and are up to 15 km thick. The entire complex is composed of over 800 mappable plutons and small |  | | Report (volume) | | Rm G-84 DENVER, Colorado--Federal Bldg., Rm. 169, 1961 Stout St. LAKEWOOD, Colorado-- Federal Center...Center, Bldg. 810 MENLO PARK, California--Bldg. 3, Rm. 3128,345 Middlefield Rd. • RESTON, Virginia--National...Diagram of a typical mafic-ultramafic stratiform complex 12 Cartoon cross-section of a typical komatiitic...chromite deposi a typical mafic-ultramafic stratiform complex 41 Chromite grades of pediform chromite deposits...Generalized geologic map of a zoned ultramafic complex 50 Tonnages of carbonatite deposits 52 Grades of |  | | Report (issue) | | ("commodity") se presentan con la misma escala; se usa una escala logarftmica para los tonelajes y la mayorfa...uranio en arensica, ubicados en la Plataforma de Colorado. Cuando los atributos de un modelo han sido conocidos...Ninguna conocida. EJEMPLOS High Plateau, Del Norte County, USCA Goto Mine, Luzon, PLPN (Wells y otroa, 1946)...piroxeno, biotita, flogopita, aofibol, spinel ± galena t hematita ± cuarzo ± forsterita ± serpentina ±...MPLOS Oka, CNQU Iron Hill, USCO St. Honore, CNQU Gem Park, USCO Mountain Paaa, USCA (Gold y otroa, 1966) |  | | Book | | Netherlands. Special regulations for readers in the USA — This publication has been registered w i t h the...made in the USA. A l l other copyright questions, including photocopying outside of the USA, should be...colour index. This is, without doubt, the most complex lithologic association to be handled from the point...or in the mine workings at all. The Climax Mo complex is the best known example. Here three generations...150-200 km and are up to 15 km thick. The entire complex is composed of over 800 mappable plutons and small |  | | Report (issue) | | indium, by Robert A. Weeks ---------------------Gem stones, by Robert E. Thaden --------------------...evaluations of a specific mineral deposit have become a complex task for a team of specialists, including not only...dressers, metallurgists, and economists. So many complex factors govern price at any given time that it...mineral supplies-and to start planning. Charles F. Park (1968) wrote of the decrease in mineral supplies...limits to growth: New York, Universe Books, 205 p. Park, C. F., Jr., 1968, Affluence in jeopardy: San Francisco |  | | Report (volume) | | 74, Ph miles east of Dutchtown, Cape Girardeau County, Mo. Type section cut by northtrending fault with...stream in NEIA sec. 33, T. 16 N., R. 14 E, Wayne County. Named after village of Abington, about 3 miles...Named for Adam Peak in Osgood Mountains, Humboldt County. Occupies belt about 21f2 miles long on western...Portlandian) age. Mapped around Adobe Flat in Stanislaus County. Well exposed west of Wilcox Ridge in sec. 23,...Agate Creek Formation Oligocene, lower: Central Colorado. R. H. De Voto, 1964, The Mountain Geologist, |  | | Report (issue) | | 1965. 1966. 1967. 1968. Numerous Federal, State, county, and local agencies and other organizations and...-___ California. _ __________________________ Colorado ______________________________ Montana. _____...disturbed belt.________________ Yellowstone National Park and vicinity. __ Snake River Plain______________________...Mountains_--_-------------- A41 Precambrian rocks of Colorado.__________ 41 41 Mesozoic stratigraphy.__________________...Dakota___________--------------75 Utah-..-.__-. -77 Colorado-____ ___________-.----77 Kansas.--.__.______-_-_ |  | | Report (volume) | | George G. The Metaline district, Pend Oreille County, Washington, [Chap.] 6 in Lead-zinc deposits in...fill of Red Light Bolson, southeastern Hudspeth County, Texas, in Geology of the southern Quitman Mountains...terraces along Maple River in northeastern Clinton County, Michigan, U.S.A. (their morphologic, genetic and...northwest quarter of Lemoine Township, AbitibiEast County [also French edition]: Quebec Dept. Nat. Resources...Mount Rainier, our only glacial volcanic national park: Sci. and Children (Washington, D.C., Natl. Sci |  | | Report (issue) | | quality, and safe use of the land become more complex and difficult, and more critical to the National... Central region __________________________109 Colorado ____________________________109 Kansas ______...Francisco Bay regional studies _ ___ ______284 Colorado Front Range Urban Corridor _____________284 Geotechnical...Geotechnical and geohydrological studies in Fairfax County, Virginia _____________________285 Puget Sound...------ Council on Environmental Quality CFRUC ——__ Colorado Front Range Urban Corridor Project CGIS ------ |  | | Report (issue) | | 501. During fiscal 1963, numerous Federal, State, County, or Municipal agencies listed on page A247 have..._____ Utah.. _--_______-__-_______--_______._ Colorado ______________________________ Kansas -_--___...Southern Rocky Mountains and plains ___________ Colorado Plateau_-_____--__-____-____--_-_-_-_ Basin and..._. Federal agencies.___________________ State, county, and municipal agencies. 247 247 247 U.S. Geological...Butte iron deposit in the Gravelly Range, Madison County, Mont., is, like nearby deposits, a metamorphosed |  | | Report (volume) | | KS Alaska Alabama Arkansas Arizona California Colorado Connecticut Dist. of Columbia Delaware Florida...names at formation rank, and remark J concerns "Complex. If a mass of rock is composed of diverse types...characterized by highly complicated structure, the word 'complex' may be used as part of the formal name instead...should not be used with the word "complex." Accordingly, where "complex" is used together with a lithologic...Survey at Reston, Va.; Denver, Colo.; and Menlo Park, Calif. It can be consulted by persons having access |
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