 | | Journal (article/letter/editorial) | | ALKALIC ROCKS OF THE ARKANSAS RIVER AREA, FREMONT COUNTY, COLORADO.4. THE PINON PEAK BRECCIA PIPES1 E. Wru...Assrnecr The Pinon Peakbrecciapipesin Fremontcounty, colorado,are satelriticto the tion are recorded, thus...bodies of the alkalic province of Fremont and custer counties, colorado. The pinon peak breccia pipes, herein...its consanguineous complex, whereasin Democrat Gulch the brecciasare adjacent to or near the syenite...Mcclure Mountain-rron Mountain complex in Fremont county, colorado, mainly on the south side of the Arkansas |  | | Journal (article/letter/editorial) | | ites fromthe Wet MountainsArea, Fremont and Custer Counties,Colorado TnEOr)ORE J. ARMBRUSTMACHER Abstract...Mountainsareapossesshave been describedincludingRoad Gulch (Staatz distinctivepetrographiccharacteristics that...that are used and Conklin, 1967), McCoy Gulch (Heinrich and in this report to classifythem as replacement...not appar- CARBONATITE$, WET MOUNTAINS AREA, COLORADO 891 FiG. 2. Photomicrographs in plane light...Microcline Monazite Muscovite Phlogopite Plagioclase Pyrite Pyrochlore Quartz FeO (OH) MgCO3 FezOn (K, Na)A1Si308 |  | | 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 (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 (volume) | | BLACK MOUNTAINS, AND.GRAND WASH CLIFFS MOHAVE COUNTY, ARIZOiNA BY F. C. SCHRADER WASHINGTON GOVERNMENT...Physiographic features_____________________________ 17 Colorado Plateau_______________________ Great Basin province__________...Mountains ______________________ Black Mountains, or Colorado Range____________ Eldorado Range____________________________..._____________ ______.____ ___ 45 Production of Mohave County._____________ 47 General character of deposits...Gold Road district__________________________ General outline___________________________ Gold Road min |  | | Report (volume) | | trachyte Esperanza trachyte Oatman andesite . Gold Road latite___________-___ ________ Younger volcanic...______________ Tom Reed vein______ _ __ _________ Gold Road vein __ __ _________ Moss vein ___________ _ _________________...district: A, Mountains on the northwest side of Times Gulch; B, Ruth and Moss mines from the south_______ V...Vein structure: A, The Gold Road vein as exposed on the Oatman-Kiugmau road, looking southeast; B, The...district: A, View up Gold Road Gulch, showing the surface relations of the Gold Road mine; B, Leland Hill |  | | Report (issue) | | - Tectonic movement in the Grapevine area, Kern County, Calif., by B. E. Lofgren - _ _ _ - - - _ _ _ -...extrusive volcanic rocks in Middle Park, Grand County, Colo., by G. A. Izett - - - - - _ _ - - - - _...Graford Formation of Late Pennsylvanian age, Brown County, Texas, by D. A. Myers . . . . . . . . . . . ....rocks of the Houlton-Smyrna Mills area, Aroostook County, Maine, by Louis Pavlides and W. B. N. B e r r...- - Rare-earth thorium carbonate veins of the Road Gulch area, northern Wet Mountains, Colo., by M. H |  | | Report (issue) | | listed on pages A259-A264. Numerous Federal, State, county, and municipal agencies listed on pages A211-A215...____________--------_---_--_Utah......--_---------------.--------Colorado.. ------------------------Kansas.______--_---...Wyoming.____________________ Colorado __ _______________________________ Colorado Plateau________________________________...__ Utah..____________________________________ Colorado. _ _________________________________ New Mexi... -.-..._-----_-_--__ .______.___._..___ State, county, and municipal-____________________ Other cooperators--___ |  | | Report (volume) | | Lemhi Pass quadrangle, Page Lemhi County, Idaho, and Beaverhead County, Mont ..... Jn pocket FIGURE 1....veins. Other moderately common minerals are barite, pyrite, black manganese oxide minerals, red earthy hematite...southeast of Leadore, Idaho) to southern Ravalli County, Mont. Thorium deposits in this belt formed at...unimproved dirt road over Lemhi Pass crosses the northern part of the Lemhi Pass quadrangle. This road connects...currently in operation, the Public Service Co. of Colorado has a 330-megawatt commercial reactor scheduled |  | | Journal (volume) | | Mines and mineral resources of 7 11 Santa Cruz County, by Henry G. Hubbard 11 Discoveries in the strategic...O'Brien 77 Current mining activity in Plumas County, by C. A. Logan 85 GEOLOGIC BRANCH 88 Current...DISTRICT MINES AND MINERAL RESOURCES OF SANTA CRUZ COUNTY By Henry G. Hubbard* OUTLINE OF REPORT Page...counties created February 18, 1850, Santa Cruz County was first called Branciforte. 1 An amendment passed...Mountains, the original boundaIn 1868 the ries of the county were the same as they are at present. northern |  | | Report (issue) | | near the Gold Hill mine that contains disseminated pyrite; magnetiteand calcsilicate-rich skarn formed in...Mill Creek Mill Creek road Mill Creek road Gulch Gulch Gulch Gulch Gulch Gulch Gulch Mill Creek area 91JH82 |  | | Book | | Cristallographic in the 39 on Davila collection Pyrite inclusions published in Tomana Valley, not...and weighs 235.5 carats, morganite rough Diego County, California, weigh Lea Collection), and from...Properties be the largest a was story Angeles County and photographs prepared from a 6,021- International...with the voids a of and mica ordinary beryl pyrite and arsenopyrite, product of tourmaline and beryl...35 x while etching cleavage etched green County, California; 138 The basal face is has cracks |  | | Report (volume) | | Geology California Div. Mines and Geology County Rept. Geology County Report. San Francisco, Calif. California...Notes. Colorado School Mines Mineral Industries Bull. Industries Bulletin. Golden, Colo. Colorado School...Golden, Colo. Colorado School Mines Quart. Colo. Florida State University. Colorado School of Mines...Professional Contributions of the Colorado Quarterly of the Colorado School of Mines. Golden, Com. Internat...Geological Societies Harmondsworth Road Research Harmondsworth Road Research Lab. Rept. Laboratory Report |  | | Report (issue) | | the observations of George Orwell in his book "The Road to Wigan Pier." When describing the working conditions...estimates for uranium-vanadium deposits on the Colorado Plateau: U.S. Geol. Survey Bull. 1030-D, p. 137...geostatistical analyses and computer simulation: Colorado School Mines Quart., v. 64, p. 71-98. Haun, J...Mineral-resource appraisal by the U.S. Geological Survey: Colorado School Mines Quart., v. 45, no. 1A, p. 1-27. -...Survey Bull. 1204, 61 p. Orwell, George, 1937, The road to Wigan Pier: London, Victor Gollancz, Ltd., 264 |  | | Report (issue) | | listed on pages A253A258. Numerous Federal, State, county, and municipal agencies listed on pages A205-A210...---34 Utah --------------------------------35 Colorado ----------------------------35 lCansas ------..._ Quaternary geology ______________________ _ Colorado Plateau -----------------------------Geologic...agencies ------------------------------ 205 State, county, and municipal agencies __________ _ 205 U.S. Geological...knowledge of the mineral and water resources of Colorado, Idaho, Nevada, and New Mexico has been summarized |  | | Report (volume) | | and Mineral Resources. Colorado School Mines Mineral Industries Bull.-Colorado School of Mines, Mineral...Colo. Colorado School Mines Quart-Colorado School of Mines, Quarterly. Golden, Colo. Colorado Sci. Soc...Soc. Proc.-Colorado Scientific Society, Proceedings. Denver, Colo. Commonwealth Bur. Soils, Tech. Comm...Johannesburg, South Africa. Mines Mag.-Mines Magazine. Colorado School of Mines Alumni Association. Denver, Colo...Monazite deposits in calcareous rocks, Northern Lehmi County, Idaho: Idaho Bur. Mines and Geology Pam ph. 99 |
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