 | | Report (volume) | | The Buffalo Peaks Andesite of Central Colorado GEOLOGICAL SURVEY BULLETIN 1405-F The Buffalo Peaks...Peaks Andesite of Central Colorado By GEORGE F. SANDERS, JR., GLENN R. SCOTT, and CHARLES W. NAESER CONTRIBUTIONS...Publication Data Sanders, George F. The Buffalo Peaks Andesite of central Colorado. (Contributions to stratigraphy)...: I 19.3:1405-F 1. Andesite Colorado Park Co. 2. Andesite Colorado Chaffee Co. 3. AndesiteColorado Lake.......................... Description of the Buffalo Peaks Andesite................................... |  | | Report (chapter) | | BULLETIN 160, 2004 205 Geochronology of the central Colorado volcanic field William C. McIntosh and Charles...Technology, Socorro, NM 87801 Abstract The central Colorado volcanic field (CCVF) consists of at least ten...volcanic field to the southwest, and over lapped the Colorado Mineral Belt on the north and west. The CCVF was...about 30 and 29 Ma. Introduction The central Colorado volcanic field (CCVF) is defined as the middle...because they belong to the older, much studied, Colorado Mineral Belt. The northeast ern corner of the |  | | Report (issue) | | Deposits of the Poncha Springs NE Quadrangle, Chaffee County,Colorado By RALPH E. VAN ALSTINE With a section... PAPER 626 Prepared in cooperation with the Colorado State Mining Industrial Development Board UNITED...Ralph E. Van Alstine and Doak C. Cox _________ _ Colorado-American mine ______________ -_Delay adit and...Poncha Springs NE quadrangle. Geologic map of the Colorado-American fluorspar mine, Browns Canyon district...district. Geologic map of underground workings, Colorado-American fluorspar mine. Longitudinal section showing |  | | Report (volume) | | San Isabel National Forest, South-Ce tral Colorado COLORADO An Assessment of the Mineral Resource...the San Isabel National Forest, South-Central Colorado By Richard B. Taylor, Rebecca j. Stoneman, and...the San Isabel National Forest, south-central Colorado Mineral resource potential map of the San Isabel...Isabel National Forest, south-central Colorado FIGURES 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14....the San Isabel National Forest, South-Central Colorado By Richard B. Taylor, Rebecca j. Stoneman, and |  | | 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 |  | | 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 |  | Stark, J. T., Johnson, J. H., Behre, C. H. Jr., Powers, W. E., Howland, A. L., Gould, Don B. (1949, January) Geology and Origin of South Park, Colorado. GSA Memoir 33. Geological Society of America doi:10.1130/mem33 | Report (issue) | | Memoir 33 GEOLOGY AND ORIGIN OF SOUTH PARK, COLORADO BY J. T . STARK, J. H. JOHNSON, C. H. BEHRE,.... . .. . . ......................... . 101 Buffalo Peaks andesite ..... . . . . . . . . . . . . . . ...Fipre ~P 1. 2. 3. 4. 5. 6. 7. 8. Map of central Colorado and South Park.... . . . . . . . . . . . . . ...pre-Pennsylvanian Paleozoic formations of the Mosquito Range, Colorado.... . . . .. .. .. . . . ... .. . . .. . .. ....Fault pattern of the Rocky Mountains of central Colorado. . ..... .... . . . . . . ... . . . . . . . 137 |  | | Report (volume) | | of the Thirtynine Mile Volcanic Field, Central Colorado GEOLOGICAL SLRVEY BULLETIN 1395-C I§ ' Stratigraphic...of the Thirtynine Mile Volcanic Field, Central Colorado By RUDY C. EPIS and CHARLES E. CHAPIN CONTRIBUTIONS...OF THE THIRTYNINE MILE VOLCANIC FIELD, CENTRAL COLORADO By RUDY C. EPIS l and CHARLES E. CHAPIN 2 ABSTRACT...physiographic and tectonic settings in central Colorado. The volcanic field is characterized by andesitic...used informal names in our earlier reports for 1 Colorado School of Mines, Golden, Colo. 80401, and U.S |  | | Report (volume) | | the Geology and Mining Industry of L eadville, Colorado, by S . F. _ Emmons, pp. 201-290, plates 44 and...WHITl\1AN ORO WITII A GEOLOGICAL SKETCH OF BUFFALO PEAK COLORADO BY ',F. GEOLOGIST [~ E~1MO~S Cn ARGE...a brief sketch by myself of the geology of Buffalo Peaks. The material from which it has been prepared...followiug reason: The andesites from Buffil>lo Peaks, which, at first glance, appeared to be most characteristic......•••.. I NTRODUC'I9RY GEOLOGICAL SKETCH OF BUFFALO Pl~AKS, nY S. F. EMMONS ...• ON RYI'ImtiTUE:-IE·ANDESITE |  | Peterman, Z.E., Bunker, C.M., Bush, C.A., Bryant, Bruce, Marvin, R.F., Naeser, C.W., Mehnert, H.H., Izett, G.A., Obradovich, J.D., Cebula, G.T. (1981) Shorter contributions to isotope research in the Western United States, 1980. Professional Paper 1199ae. US Geological Survey doi:10.3133/pp1199ae | Report (issue) | | Igneous Rocks in the South Park-Breckenridge Region, Colorado, and their Relation to the Tectonic History of...Dating of the Climax and Gold Meadows Stocks, Nye County, Nevada By C. W. NAESER and FLORIAN MALDONADO ...igneous rocks in the South Park-Breckenridge region, Colorado, and their relation to the tectonic history of...dating of the Climax and Gold Meadows stocks, Nye County, Nevada, by C. W. Naeser and Florian Maldonado...THE LITTLE ROCKY MOUNTAINS, MONTANA Quartz, plagioclase, and microcline are present in nearly equal amounts |  | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Journal (article/letter/editorial) | | Jersey, Pennsylvania and Maryland, into Orange county, Virginia. As early as 1839, W. B. Rogers || called...white feldspar. It was in a specimen from Culpeper county, Virginia, near the southern end of this Triassic...BROWN— COMPOSITION OF TRA P. railroad in Culpeper county, Virginia, about two miles north’ of Rapidan station...hypersthene and a colorless mineral, which is probably plagioclase, exhibits granophyre structure in a section from...547 .0004) .0026 J •0U'J 99.55 99.24 III.— Buffalo Peaks. .88650.043 o A9Ub 17.812 0.120 6.696 J21.744 |  | | Journal (article/letter/editorial) | | chemical resemblance between the sca,polite and plagioclase miiierals has often been pointed out, and it...between the composition of these two minerals and plagioclase, epidote, muscovite, and kaolin are pointed out...apparently typical augite-andesite from the Buffalo Peaks, Colorado, cont ains hypersthene as its chief pyroxeiiic...by the author from the inrestigation of the Buffalo Peaks rocks induced him to examine carefully a series...structurally with B. H. B. the hypersthene of the Buffalo Peaks rocks. Chemical Composition of t h e Phonolites |  | | Report (issue) | | Geology in the Leadville 30-Minute Quadrangle, Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 726-C...Geology in the Leadville 30-Minute Quadrangle, Colorado By OGDEN TWETO and J. E. CASE GEOPHYSICAL FIELD...geophysical data on the most productive part of the Colorado mineral belt UNITED STATES GOVERNMENT PRINTING...of the Leadville 30-minute quadrangle, central Colorado.... -----------------------------------------...____________ ln pocket FIGURE 1. Index map of Colorado __________________________________________________ |  | 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) | | 15-Minute Quadrangle, Eagle and Summit Counties, Colorado By OGDEN TWETO and THOMAS S. LOVERING G E 0 L...PAPER 9 56 Prepared in cooperation with the Colorado Mining Industrial Development Board Geology of...and Mississippian Systems ........ .. ........ . Chaffee Group .................................. . Parting.... . . . . In pocket Index map of west-central Colorado showing geographic setting of the Minturn quadrangle...Minturn quadrangle to major structural features and Colorado mineral belt ............... , 70 Geologic sketch |  | | Report (issue) | | . . . . . . . . . . . . . 69 Upper Buffalo Wilderness and Buffalo Addition Roadless Area, Arkansas, by........... . ........ . Colorado Buffalo Peaks Wilderness Study Area, Colorado, by D. C. Hedlund and R...Roadless Area and Powderhorn Wilderness study area, Colorado, by William . Sharp and M. E. Lane . . . . . ...Chama-Southern an Juan Mountains Wilderness study area, Colorado, by Maurice R. Brock and Alec E. Lindquist . ...eota-Flat Top, and ever Summer wilderness study areas, Colorado, by R. C. Pearson and L. L. Patten ..... . .. |  | | Report (volume) | | ----------Six new members of the James Run Formation, Cecil County, northeastern Maryland, by Michael W. Higgins ...Arizona -----Generalized geologic map of Cecil County, Md., showing members of the James Run Formation... D.J.• , 1976, Geologic map of western Whatcom County, Washington: U.S. Geol. Survey Misc. Geol. Inv...Cretaceous (varies locally) Montana, Wyoming, Colorado, New Mexico, Nebraska, Minnesota, North and South...quadrangle, Park County, Colorado: U.S. Geol. Survey Geol. Quad. Map GQ-1343. In central Colorado raised in |  | | Journal (article/letter/editorial) | | typical variety, occurring at the Buffalo Peaks in South Park, Colorado, the writer found that a large part...macroscopic and microscopic characters of the Buffalo Peaks rock which would answer very well for the Cheviot...and throughout it are scattered crystals of plagioclase and ill-defined greenish patches resulting from...the porphyritic felspars appear to be entirely plagioclase. Microscopically the rock is a very interesting |  | | Report (volume) | | 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...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson...Jefferson County, at Elyton; Lee County, at Chewacla lime works; St. Clair County, at Gfeensport; Shelby |  | | Book | | MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Sine —_—< ¢ te om At _SHT 40...MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Richard Walker Holmes and Marrianna...Mines and minerals of the Great American Rift (Colorado-New Mexico). Bibliography: p. Includes index...index. 1. Mines and mineral resources—Colorado. 2. Mines and mineral resources—New Mexico. I. Kennedy, Marrianna...minerals of the Great American Rift in New Mexico and Colorado. Great American Rift is the name we use for a |  | | Report (volume) | | ............................................. Colorado.................................................especially from those of Arkansas, California, Colorado, New Mexico, Oregon, South Dakota, Tennessee,...minerals and rocks, their occurrence and uses: Colorado State Geol. Survey Bull. 6, 1913. 8 USEFUL...See Bauxite and Halloysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton; |  | | Journal (article/letter/editorial) | | Identification of uraniferous granitoids in the USA using stream sediment geochemical data R. J. HOWARTH...Geology, University of Georgia, Athens, Georgia, USA J. A. PLANT Institute of Geological Sciences,...magmatic from an area of 76000 km 2 in central Colorado are used to identify uraniferous granitoids on...uranium source rock. Uraniferous granitoids in Colorado, which are associated with sedimentary basins...National Topographic Map Series (NTMS) quadrangles in Colorado (fig. 1). These data form the basis for this investigation |  | | Report (volume) | | XII. Geology and Mining Industry of Leadville, Colorado, with atlas, by Samuel Franklin Emmons. 1886....on Silver Cliff and Ten-Mile Mining Districts, Colorado, by S. F. Emmons. Flora of the Dakota Group, by..."Whitman Cross, with a Geological Sketch of Buffalo Peaks, Colorado, by S. F. Emmons. 1883. 8°. 42pp. 2 pi...meridian of 76° 30', from Tompkins County, N.Y., to Bradford County, Pa., by Henry S. Williams. 1884....cents. 16. On the Higher Devonian Faunas of Ontario County, New York, by John M. Clarke. 1885. 8°. 86 pp. |  | | Journal (article/letter/editorial) | | especially by Prof. Fouque.13 (2) The lava of Buffalo Peaks, Colorado, for the description of which we are indebted...illustrated by the following table:— Buffalo Rock of Santorin Peaks lava. dykes. 56-6 ... 51-8 20-1 .....basic dykes at Santorin Other dykes at Santorin Buffalo Peaks lava Cheviot-rocks Recent lavas of Santorin...porphyritic crystals; these last consisting of plagioclase felspar, enstatite, augite and magnetite, always |
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