 | | Journal (article/letter/editorial) | | gibbsite, biotite, chlorite, muscovite, 429 Groverake mine, Rookhope, Weardale, Durham, copper, copiapite,...lepidolite, 289 Derbyshire Cobbler mine, Bonsall, fluorite, 4oi Jughole mine, Masson Hill, Matlock, fluorite...fluorite, baryte, 81 I Ladywash mine, Eyam, fluorite, 4Ol Mare Tot mine, Castleton, fluorite (Blue John), 363...Masson Hill, Matlock, fluorite, baryte, 81 I Oxclose mine, Masson Hill, Matlock, fluorite, baryte, bravoite...(in railway tunnel), 818 France Bauzot uranium mine, Issy l't~v~que, Sa6ne-etLoire, fluorite, 4oi Mont |  | | Report (volume) | | Jackson Mountains Wilderness Study Area, Humboldt County/ Nevada U.S. GEOLOGICAL SURVEY BULLETIN 1726-B...Jackson Mountains Wilderness Study Area, Humboldt County, Nevada By MARTIN L. SORENSEN, DONALD PLOUFF, and...ROBERT L. TURNER U.S. Geological Survey MICHAEL M. HAMILTON U.S. Bureau of Mines U.S. GEOLOGICAL SURVEY BULLETIN...Jackson Mountains Wilderness Study Area, Humboldt County, Nevada. U.S. Geological Survey Bulletin 1726-B...Mountains Wilderness Study Area (NV-020-603), Humboldt County, Nevada. CONTENTS Summary Bl Abstract 1 Character |  | | Report (issue) | | Beryllium Area, Park and Jefferson t:-1 Counties, Colorado g ~ s:p ~ I> li:tl ~ GEOLOGICAL SURVEY PROFESSIONAL...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...Formation ___________________ _ Amphibolite and hornblendite _______________ _ Boulder Creek{?) Granodiorite...and representative mines _______________ _ Boomer mine area _____________________________ _ Rocks ____ |  | | Report (issue) | | PACE STEERING COMMITTEE Warren B. Hamilton - U.S.G.S., Denver, Colorado Gordon B. Haxel - U.S.G.S., Flagstaff...U.S. Cordillera. The transect extends from the Colorado Plateau to the Pacific Basin. The PACE project...administered at various times by B. Morgan, D. Russ, R. Hamilton, and S. Bohlen, worked in concert with other budgeted...13-14, 1991, Flagstaff, AZ East margin of the Colorado River extensional corridor -- August 15-16, 1991...1991, Flagstaff, AZ Crustal thickness beneath the Colorado Plateau ~ December 8, 1991, Menlo Park, CA Construction |  | | Report (issue) | | Geology of Precambrian Rocks Central City District Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 474-C... Geology of Precambrian Rocks Central City District Colorado By P. K. SIMS and D. J. GABLE SHORTER CONTRIBUTIONS...1918Geology of Precambrian rocks, Central City district, Colorado, by P. K. Sims and D. J. Gable. Washington...City district, Colorado. 1964. (Card2) 1. Geology, Stratigraphic Pre-Cambrian. 2. Geology Colorado Gilpin...Central City district, Gilpin County, Colorado. 2. Geologic sections of the Central City district, Gilpin |  | | Report (issue) | | Quadrangle Grand, Gilpin, and Clear Creek Counties ColOrado. By WILLIAM A. BRADDOCK .,..,., GEOLOGICAL SURVEY...Granite__________________________ Quartz diorite and hornblendite ______________ - _ _ _ _ Hornblende diorite...QUADRANGLE, GRAND, GILPIN,, AND CLEAR CREEK COUNTIES, COLORADO " By WILLIAM ABSTRACT The Empire quadrangle...Boulder Creek Granite and quartz diorite and hornblendite form bodies that are conformable to the B o...Survey has published maps and reports on several mining districts ncar the Empire quadrangle (Harrison |  | | Report (volume) | | urn-bearing Area, Ralston Buttes District, Jefferson County, Colorado U.S. GEOLOGICAL SURVEY BULLETIN...urn-bearing Area, Ralston Buttes District, Jefferson County, Colorado By E.]. YOUNG U.S . GEOLOGICAL...and prospects in the Front Range near Golden, Colorado UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON...uraniumbearing area, Ralston Buttes district, Jefferson County, Colorado. (Geological Survey bulletin ; 1555)...I. Geology-Colorado-Jefferson County. 2. Uranium mines and mining-Colorado-Jefferson County. 3. Geoch |  | | Report (volume) | | Theodore Chapin.___ _________ Notes on history of mining development- _____-______----__--____ Geography...distribution________________________________ Ketchikan district.._______________________________________ Vicinity..._ Page 45 49 49 52 57 59 60 66 68 68 Juneau district..... ____________--___-____-_-. Schistose greenstone...rocks-___________________________________ Southern Ketchikan district, by Theodore Chapin_______. 88 90 90 94 94 94...division________________________________-_-___ Juneau district _ _____________________________________ Seymour |  | | Journal (article/letter/editorial) | | effect of [NaOH] on obliquity, 455 Alice Louise mine, Plaine des Pirogues, New Caledonia, chrome-picotite...analogue, 78 Ankerite, Scotland, 119 Anna Madeleine mine, Plaine des Lacs, New Caledonia, olivine, chrome-picotite...ASARI (T.), anals, by, 227, 228 Astrophyllite, Colorado, Greenland, Malawi, Norway, and Spain, anal.,...fluorite containing Mn impurities, 705 Bambollita mine, Moctezuma, Sonora, Mexico, cesbronite, 744; quetzalcoatlite...effect on crystallization of, 64I Bauzot uranium mine, Issy l'l~v6que, Sa6ne-etLoire, France, fluorite |  | | Report (volume) | | Bulletin, vol. 42. New York. American Institute of Mining Engineers: Bulletin, nos. 37-48; Transactions,...series, vols. 29, 30. New Haven, Conn. American Mining Congress: Papers and Addresses, 13th Annual Session...Technology, vol. 15. Berkeley, Cal. California State Mining Bureau: Bulletin, nos. 57, 59. San Francisco, Cal...Transactions, vol. 8, pt. 4. Toronto, Ont. Canadian Mining Institute: Quarterly Bulletin, nos. 9-12; Journal...Journal, vol. 12. Ottawa, Ont. Canadian Mining Journal, vol. 31. Toronto and Montreal, Canada. Carnegie Institution |  | | Report (issue) | | COPY Bedrock Geology of the Kassler Quadrangle Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 421-B Bedrock... Bedrock Geology of the Kassler Quadrangle Colorado By GLENN R. SCOTT GEOLOGY OF THE KASSLER QUA.DRANGLE...DRANGLE, JEFFERSON AND DOUGLAS COUNTIES, COLORADO GEOLOGICAL SURVEY PROFESSIONAL PAPER 421-B A survey...survey of the east flank of the Colorado Front Range with emphasis on Cretaceous rocks and on structural...granite________________________ Quartz diorite and hornblendite _ _ _ _______ Biotite-muscovite granite________________ |  | | Report (issue) | | Geological Survey CRUSTAL EXTENSION AND THE PEAK COLORADO RIVER GRAVITY HIGH, SOUTHERN SACRAMENTO MOUNTAINS...Tertiary crustal extension is well documented in the Colorado River extensional corridor along the California-Arizona...midTertiary crustal extension along the west side of the Colorado River for ~150 km. Along that length, the gravity...mGals above background levels. The peak of the Colorado River gravity high, which is an additional 10...extreme crustal extension along the 100-km wide Colorado River extensional corridor (Howard and John, 1987) |  | | Report (volume) | | Deposits Of the Lawson-DumontFall River District Clear Creek County Colorado By C. C. HAWLEY and FRANK BAKER...of the general geology and ore deposits of the district which forms the northwestern part of the important...section of the Lawson-Dumont-Fall River district, Clear County, Colo. 2. ~ap showing major faults (veins)...(veins) of the Lawson-DumontFall River district projected to a horizontal plane having an elevation of 8...PLATE 3. Map of the Lawson-Dumont-Fall River district, showing location of mines and distribution of |  | Manor, Matthew J., Scoates, James S., Wall, Corey J., Nixon, Graham T., Friedman, Richard M., Amini, Marghalery, Ames, Doreen E. (2017) Age of the Late Cretaceous Ultramafic-Hosted Giant Mascot Ni-Cu-PGE Deposit, Southern Canadian Cordillera: Integrating CA-ID-TIMS and LA-ICP-MS U-Pb Geochronology and Trace Element Geochemistry of Zircon*. Economic Geology, 112 (6) 1395-1418 doi:10.5382/econgeo.2017.4514 | Journal (article/letter/editorial) | | peridotite, pyroxenite, hornblende pyroxenite, and hornblendite that intruded diorites of the Spuzzum pluton...is British Columbia’s only past-producing nickel mine (1958–1974), having produced ~4.2 million tons (Mt)...Giant Mascot CC Cascades Mt. Stuart NAb Canada USA CPC MT CD BR Idaho WR Sierra Nevada Tuolumne...Tuolumne 100 0 200 °W 30° N Peninsular USA Mexic o Outboard PR Pacific Rim CR Crescent Insular...olivine websterite), hornblende pyroxenite, and hornblendite (Manor et al., 2015b). The rocks are remarkably |  | | Report (volume) | | Park Range Vicinity, Jackson and Routt Counties, Colorado By GEORGE L. SNYDER, U.S. GEOLOGICAL SURVEY, LOWELL...Park Range vicinity, Jackson and Routt Counties, Colorado. (Studies related to wilderness-wilderness areas)...mineral resources-Colorado--Jackson County. 2. Mines and mineral resources-Colorado-Routt County. 3. Geology-Colorado--Jackson...Geology-Colorado--Jackson County. 4. GeologyColorado--Routt County. I. Patten, Lowell L. II. Daniels, Jeffrey...Zirkel Wilderness and northern Park Range vicinity, Colorado, that are being considered for wilderness designation |  | | Report (issue) | | iron ores of western North Carolina and Carter County, Tenn., comprise brown hematite (limonite and possibly...counties, N. C., the greater part from Cherokee County. In the earlier years of this century brown ore...magnetite came mainly from Cranberry, in Avery County, N. C. A small quantity has been contributed by...incident. Most of it was mined from deposits in Carter County, Tenn., where search was made for the western extension...CAROLINA AND TENNESSEE. 211 abundantly in Cherokee County and in smaller quantities in Madison, Lincoln, |  | | Journal (volume) | | LOGAN, District Mining Engineer C. McK. Laizure, District W. Burling Tucker, Reid J. _ Mining Engineer...Engineer District Sampson, Assistant Mining Engineer District Engineer Chas. V. Averii.l, District Mining...Mining Engineer J. C. O'Brien, District Mining Engineer George John Gary, Mineral Technologist L. ... Statistician and Curator G. Hubbard, Junior Mining Engineer (Librarian) San Francisco Sacramento... CONTENTS Page REPORTS OF DISTRICT MINING ENGINEERS Sacramento Field District 6 7 Mines and Mineral Resources |  | Sheridan, Douglas M., Maxwell, Charles Henry, Albee, Arden Leroy, Van Horn, Richard (1967) Geology and uranium deposits of the Ralston Buttes district, Jefferson County, Colorado, with sections on Paleozoic and younger sedimentary rocks. Professional Paper 520. US Geological Survey doi:10.3133/pp520 | Report (issue) | | raniurn Deposits of the Ralston Buttes District Jefferson County, Colorado By DOUGLAS M. SHERIDAN, CHARLES H...veins on the of the Front Range west of Denver district flank of the geology of a east UNITED STATES...___________________________________ _ Rocks of the district ____________________________ --· __ Precn.mbrian...______________________ _ Hornblende diorite and hornblendite _____ _ Hornblende-biotite lamprophyre _________...43 43 43 44 45 45 47 49 50 Page Rocks of the district-Continued Laramide intrusive rocks _______________________ |  | | Report (issue) | | Metallurgist MARK EHLE, Mining Engineer J. B. TENNEY, Geologist G. R. FANSETT, Mining Engineer R. E. S. HEINEMAN..."The Geology and Mineral Deposits of Southern Yuma County" is the most pretentious bulletin of the kind that...in many parts of the county, it has not been easy to prospect southern Yuma County at all thoroughly, but...___________________ _______ ___________ ___ __ ___ Colorado River________________________________ ______ ____...__________ . __ .____ _____ ______ __. General mining history_______________________ __________ ._______________ |  | | Journal (article/letter/editorial) | | in the Precambrian Complex of Gold Butte, Clark County, Nevada A VOLBORTH Geological Society of America...scope of their employment. A. VOLBORTH Nevada Mining Analytical Laboratory, University of Nevada, Reno...in the Precambrian Complex of Gold Butte, Clark County, Nevada Abstract: The Precambrian complex of the...Figure 1. Location of the Gold Butte area, Clark County, Nevada 814 Plate Facing 1. Geologic map and cross...Clark County, Nevada 813 2. Eruptive breccias and granite cupolas from Gold Butte area, Clark County, Nevada |  | | Journal (article/letter/editorial) | | to 1.8-b.y.-old trondhjemites of southwestern Colorado and northern New Mexico: Geochemistry and depths...S. Geological Survey, Federal Center, Denver, Colorado 80225 ABSTRACT Four trondhjemitic bodies — three...rocks of northern New Mexico and southwestern Colorado. These are the metamorphosed plutonic or hypabyssal...Twilight Gneiss of the West Needle Mountains, Colorado, the syntectonic Pitts M e a d o w Granodiorite...Granodiorite of the Black Canyon of the Gunnison River, Colorado, and the late syntectonic to posttectonic Kroenke |  | | Report (volume) | | Region of High-Grade Metamorphism, Front Range, Colorado 8y DOLORES J. GABLE and VERTIE C. SMITH GEOLOGICAL...region of high-grade metamorphism, Front Range, Colorado. (Geological Survey Bulletin 1392) Bibliography:...hornblende- bearing rocks, central Front Range, Colorado _ _ _ _ _ _ _ _ _ 8 3. Modes of hornblende-bearing...REGION OF HIGH-GRADE METAMORPHISM, FRONT RANGE, COLORADO By DOLORES J. GABLE and VERTIE C. SMITH ABSTRACT...these rocks. Some quartz diorite, diorite, and hornblendite are intrusive in Boulder Creek Granodiorite |  | | Journal (article/letter/editorial) | | in the Adirondack region lies in northern Hamilton County, N. Y. From oldest to youngest, the formations...from north of the Nebraska state line into Kay County, Oklahoma. The ridge reaches its highest elevation...near the north boundary line of Kansas in Nemaha County, where it is less than 500 feet below the surface...south and forms a saddle in northwestern Wabaunsee County, then rises in Morris and Chase counties in underground... CLEOPHASC. "A Bibliography of the Geology and Mining Interests of the Black Hills Region," South Dakota |  | | Report (issue) | | u The Boulder Creek Batholith, Front Range, Colorado By DOLORES J. GABLE GEOLOGICAL SURVEY PROFESSIONAL...1922The Boulder Creek batholith, Front Range, Colorado (Geological Survey Professional Paper 1101) Bibliography:...Supt. of Docs. No.: I 19.16:1101 1. Batholiths Colorado Boulder region. I. Title. II. Series: United States...Gabbro and pyroxenite ....................... Hornblendite, hornblende diorite, quartz diorite .............................. Hornblende diorite and hornblendite............... Petrogenesis ............... |  | | Report (volume) | | and Monazite Concentrations Central City District Colorado GEOLOGICAL SURVEY BULLETIN Prepared in...and Monazite Concentrations Central City District Colorado By E. J. YOUNG and P. K. SIMS GEOLOGY AND...DEPOSITS, CLEAR CREEK, GILPIN, AND LARIMER COUNTIES, COLORADO GEOLOGICAL SURVEY BULLETIN 1032-F Prepared...Generalized geologic map of the Central City district, Colorado.___________________________________________...COUNTIES, COLORADO PETROGRAPHY AND ORIGIN OF XENOTIME AND MONAZITE CONCENTRATIONS, CENTRAL CITY DISTRICT, COLORADO |
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