 | | Report (issue) | | DIREcToR PRELIMINARY REPORT ON THE KETCHIKAN MINING DISTRICT, ALASKA WITH AN INTRODUCTORY SKETCH OF THE GEOLOGY...DIRECTOR PRELIMINARY REPORT ON THE KETCHIKAN MINING DISTRICT, ALASKA WITH AN INTRODUCTORY SKETCH OF THE GEOLOGY...glaciers Former glaciation The Ketchikan mining district General description History Geology Introduction...Amphibolite 3 44 CONTENTS. 'The Ketchikan mining district—Continued.4 Geology—Continued. Page. Bed-rock...claim _, Thorne Arm General description Sea Level mine Sea Breeze claim Golden Dream claim Mother Lode |  | | Report (chapter) | | within the conglomerate member, but that directions vary from area to area. This variation is systematic...particularly affected. K-feldspar is present as anhedral orthoclase, occasionally microperthitic, clouded by fine...leucogranites in containing muscovite, having orthoclase as the dominant feldspar, and in commonly containing...Quartz, anhedral in shape, is abundant (c. 3540%). Orthoclase (c. 20-25%) is also anhedral while plagioclase...Feldspar alteration is variably developed with orthoclase going to sericite and plagioclase (sodic andesine |  | Tauler, Esperança, Lewis, John F., Villanova-de-Benavent, Cristina, Aiglsperger, Thomas, Proenza, Joaquín A., Domènech, Cristina, Gallardo, Tamara, Longo, Francisco, Galí, Salvador (2017) Discovery of Ni-smectite-rich saprolite at Loma Ortega, Falcondo mining district (Dominican Republic): geochemistry and mineralogy of an unusual case of “hybrid hydrous Mg silicate – clay silicate” type Ni-laterite. Mineralium Deposita, 52 (7) 1011-1030 doi:10.1007/s00126-017-0750-8 | Journal (article/letter/editorial) | | saprolite at Loma Ortega, Falcondo mining district (Dominican Republic): geochemistry and mineralogy of an...deposits, like those in the Falcondo district, Dominican Republic, are dominated by Ni-enriched serpentine... Pedro Rivera, PO Box 401, La Vega, Dominican Republic hydrous Mg silicate ore and a clay silicate ore...silicate deposit . Clay silicate deposit . Dominican Republic Introduction Nickel laterite deposits are regoliths...profiles (Trescases 1975; Golightly 1981, 2010; Elias et al. 1981; Gleeson et al. 2003; Freyssinet et |  | | Journal (issue) | | minerals were analyzed and confinned as such by the Czech Geological Survey mineralogist Dr. Frantisek Veselovsky...uranium mine at Slavkovicc, western Moravia, Czech Republic. A new mineral for the Czech Republic. The mineral...Company labelled as lavendulan from Santa Catalina Mine. Sierra Gorda, Antofagasta Province, Chile. The...News, March, 1997 issue from the El Guanaco gold mine near Taltal, Antofagasta Province, Chile. Wolscndorlite...size, associated species), the location (county, mine or prospect. U.S.G.S. quadrangle, Township. Range |  | | Journal (article/letter/editorial) | | Mountain physiographic province. Very little of the region is wooded. The rocks range from Precambrian to...hamlets. The area is a hilly, broken, dissected region in an early mature stage of physiographic development...during the summer of 1935, with a brief visit to the region in 1936 and again in 1944. For a base map, a lattice...the area, Bassett (1939), Brill (1942, 1944), and Elias (1944) have worked either in the area or in the...Darrah, then of Harvard University, and Dr. M. K. Elias of the Nebraska Geological Survey in the identification |  | | Journal (article/letter/editorial) | | the Solimões Basin, Northern Brazil Andreia R.D. Elias a,1, L.F. De Ros a,*, Ana M.P. Mizusaki a, Sylvia...addresses: andreia.elias@petrobras.com.br (A.R.D. Elias), lfderos@inf.ufrgs.br (L.F. De Ros), anjos@petrobras...Amazon Region, are the largest hydrocarbon reservoirs of Northern Brazil, 192 A.R.D. Elias et al....has an area of about 600,000 km2 of the Amazonian Region, in northern of Brazil. The basin is limited to...Basin. A.R.D. Elias et al. / Sedimentary Geology 169 (2004) 191–217 194 A.R.D. Elias et al. / Sedimentary |  | | Report (volume) | | .................................. 63 i Bonanza mine............................................ 63 Reynolds-Alaska................................. 36 X. A, Ellamar mine at Ellamar; B, Dock and ore bunkers of the Standard...of the Bonanza mine on Latouche Island; B, Dock, ore bunkers, etc., of the Bonanza mine on Latouche Island...underground workings at the Ellamar mine, September, 1905. 5. Bonanza mine, Latouche Island..-..............9. Plan of underground workings at the Bonanza mine, June, 1909... Duchess tunnel, Latouche Island. |  | | Book (volume) | | minerals from the National Museum in Prague, Czech Republic; the number of mineral species presented in...cm1 is called the fingerprint region. Usually IR spectrum in this region contains very complicated series...overlapping bands. The importance of the fingerprint region is that each mineral species produces a different...500 to 800 cm1 can be considered as “fingerprint region” sensitive to the composition and the topological...see Fig. 1.9), but generally IR spectrum in this region is characteristic of all these minerals. In IR |  | | Report (issue) | | River Ornamental quartzite occurrence Churchill Mine Toad River hot springs Liard River hot springs Smith...Cantung Mine King Jade Mine Side trip to the Cassiar and Dease Lake areas Cassiar Asbestos Mine Snowy Creek...Dease Lake-Cry Lake jade occurrences Fiddler Yukon Mine Seagull Creek occurrence Side trip along Cano) Road...Columbia Atlin-Ruffner Mine Atlin placer deposits Atlin Lake occuITence Engineer Mine Side trip to Carcross...Union Mines Yukon Antimony Mine Arctic Caribou (Big Thing) Mine Venus Mine Miles Canyon Whitehorse Copper |  | | Report (issue) | | . . . . . . . . . . . . . . . . . . . Churchill Mine. . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . Canada Tungsten Mine........................................ King Jade... . . . . . . . . . . . . . . . Cassiar Asbestos Mine . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . Fiddler Yukon Mine . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . Atlin-Ruffner Mine . . . . . . . . . . . . . . . . . . . . . . . . |  | Hien-Dinh, Thi Thu, Dao, Duy Anh, Tran, Tam, Wahl, Michael, Stein, Eckardt, Gieré, Reto (2017) Lithium-rich albite–topaz–lepidolite granite from Central Vietnam: a mineralogical and geochemical characterization. European Journal of Mineralogy, 29 (1) 35-52 doi:10.1127/ejm/2017/0029-2581 | Journal (article/letter/editorial) | | deposit has been discovered in the La Vi mining district, located in Quang Ngai Province, Central Vietnam...geological field investigations because the entire region is covered with dense tropical forest. In addition...which occur in the northern part of La Vi mining district (Thong et al., 2009). The quaternary is represented...2011). The mineralization in the La Vi mining district took place in three stages, as indicated by fluid-inclusion...123 124 125 The La Vi mining region is located in the Ba To district in Quang Ngai, a coastal province |  | | Book | | On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE...Allgood, C. Williams: Ramsdellite from the Mistake mine [Arizona] 14:333-335 ALLGOOD, ROBERT W. -with G...the Mistake mine [Arizona] 14:333-335 ALMA Famous mineral localities: the Home Sweet Home mine, [near Alma |  | | Report (volume) | | ____ 36 59 TABLES Page TABLE 1. Lead found in orthoclase, biotite, and igneous rocks from southern California...extends for 1,000 miles in this direction to the St. Elias Range, Alaska. The division into four groups of...concentrate in the potassium-bearing minerals, mainly orthoclase and biotite. Analytical data on various rocks...appear to confirm this. TABLE 1. Lead found in orthoclase, biotite, and igneous rocks from southern California...Lead (parts per million) in Sample Rockjtype Orthoclase Biotite Igneous rocks 70 12 10 20 10 9 27 |  | | Journal (article/letter/editorial) | | mineralisation is the oldest reported from this region and implies that the Omey Granite was emplaced...related molybdenite systems present in the Connemara region. Molybdenite mineralisation in Connemara Molybdenite...Durham, Science Labs., Durham DH1 3LE,UK 3Galmoy Mine, Kilkenny, Ireland *Corresponding author, email...quartz, 35% oligoclase-andesine, 20% perthitic orthoclase, 5% biotite, some green prismatic hornblende...veins. Petrography reveals that the perthitic orthoclase and plagioclase are commonly completely altered |  | | Report (volume) | | of the mine area from the Nabesna camp_ ______________ 176 8.' Geologic map of the Nabesna mine area....present the usual route of transportation into the district is over the highway up the Copper River to Nabesna...a considerable extent. The oldest rocks of the district form a small area of schist and phyllites associated...Permian age. However, the dominant rocks of the district, which form most of the Nutzotin Mountains, are... Prospecting for gold and copper began in the district at an early date and; led to the discovery of |  | | Report (issue) | | DIRECTOR Gli:OLOGY OF THE CENTRAL COPPER RIVER REGION, ALASKA BY WALTER C. MEN1DEN 1-1 A_LL WASHINGTON...Kuskulana River occurrences Bonanza mine Old Independent vein Nikolai mine Other occurrences Economic considerations...Gulch Delta River district Sushitna district Nizina gold field Bremner district Tiekel and Tonsina districts...reconnaissance map of the central Copper River region In pocket V. A, Junction of Copper and Tazlina...Klawasi River 72 XI. General map of the Copper River region 78 XII. A, Mount Drum from the Nadina trail; B |  | | Journal (article/letter/editorial) | | pegmatite aiUes in the Archean rocks of the Alma district, Park -C*tty, Colorado, measure four hundred feet...described pegmatites in the Wodgina district of Western Australia which "vary from mere threads to veins over...George, R. D., Geology and ore deposits of the Alma district, Park County' . e o l .S u n e y , B u l l . 3...cavity, Buckfield, Maine' made in the Amelia district in Virginia where a few pegmatites have been worked...veins of quartz and feldspar in the Marquette district of Michigan. His monograph contains the following |  | | Journal (article/letter/editorial) | | the Solimões Basin, northern Brazil Andreia Dias Elias a,1 , Luiz Fernando De Ros a,b,⁎, Ana Maria Mizusaki...addresses: andreia.elias@petrobras.com.br (A.D. Elias), lfderos@inf.ufrgs.br (L.F. De Ros). 1 Present...reserved. doi:10.1016/j.gr.2006.06.007 554 A.D. Elias et al. / Gondwana Research 11 (2007) 553–567 Fig...of structural section of Fig. 8 (modified from Elias et al., 2004). important control over the pre-Pennsylvanian...sabkha system with important eolian contribution (Elias et al., 2004). The portion of the Juruá Formation |  | | Report (issue) | | pegmatite minerals in the Willow Creek mining district By R. M. Moxham and A. E. Nelson Part 3. Radioactive.......... Geology....................... Nizina district................. Mineral deposits and mining ......... Geology....................... Bremner district .............. Mineral deposits and mining ............. Radioactivity studies ...... Klutina district................ Mineral deposits and mining .............. Radioactivity ............. Valdez district ................ Mineral deposits and mining |  | Villanova-de-Benavent, Cristina, Domènech, Cristina, Tauler, Esperança, Galí, Salvador, Tassara, Santiago, Proenza, Joaquín A. (2017) Fe–Ni-bearing serpentines from the saprolite horizon of Caribbean Ni-laterite deposits: new insights from thermodynamic calculations. Mineralium Deposita, 52 (7) 979-992 doi:10.1007/s00126-016-0683-7 | Journal (article/letter/editorial) | | and also in Fe (7–17 wt.% Fe2O3). The Caribbean region hosts 10 % of the world’s Ni resources, mostly...and the Falcondo deposit in central Dominican Republic (Dalvi et al. 2004; Lewis et al. 2006; Nelson...the Caribbean region: Yamanigüey (Eastern Cuba) and Falcondo (Central Dominican Republic). The Nilaterite...Nilaterite deposits in the Caribbean region developed from ophiolite-related peridotites, which were emplaced...wollastonite (Ca, PET, Kα), albite (Na, TAP, Kα), orthoclase (K, TAP, Kα), and metallic cobalt (Co, LIF, Kα) |  | | Report (issue) | | tin deposits are practically all limited to one district and to one general epoch of formation. The marked...provinces, defined by drainage basins. PACIFIC COAST REGION. Four large stratigraphic units have been recognized...The recent investigations of Knopf in the Juneau district show that locally, at least, Mesozoic sediments...graywackes, probably of Mesozoic age, of the Sitka region. These rocks do not seem to have been metamorphosed...the intrusive masses themselves. The Ketchikan district contains some important copper deposits. Of these |  | | Report (volume) | | ___-_ Molybdenite in Groundhog Basin, Wrangell district, by H. R. Gault__-__ Index....___________-_.....warranted at present. In Groundhog Basin, Wrangell district, a northwestward-trending granite sill at least...to Icy Strait. . (See fig. 1.) The Glacier Bay district is characterized by huge glaciers 130° N^YUKQN...and St. Elias' Range, both very rugged, high ranges, parts of which, in the Glacier Bay district, rise...Geological Survey party was in the Glacier Bay district from June 13 to September 15, and except for about |  | | Report (issue) | | SURVEY GEORGE OTIS SMITH. DIRECTOR THE YAKUTAT BAY REGION, ALASKA PHYSIOGRAPHY AND GLACIALGEOLOGY BY RALPH.................................. Blossom Island region ................................................................ 135 Comparison with Muir Inlet region .................................................XXXVII. Geologic reconnaissance map of Yakutat Bay region.. ....................................... FIGURE...SHOWING LOCATION OF YAKUTAT BAY. THE YAKUTAT BAY REGION, ALASKA. PART I. PHYSIOGRAPHY AND GLACIAL GEOLOGY |  | | Journal (article/letter/editorial) | | Rock Cry- green, mostly semi-opaque. Many rockstal Mine is still producing fine xls, we hounds out here...5824 and jewelry. E. 12th, Kansas City 26, Mo. The mine 2. "Ophicalcite, called by some locally is located...California Division of xls. Mrs. McCarty visited the mine last Mines. It is simply dolomite resilicified by...cite I had never noted this particular comman's Mine where you pay $1 a car and bination which has to...mineral was found in fresh ore coming out of a silver mine 7 miles N . W. of Silverton ( San Juan Co.), Colo |  | | Journal (issue) | | Jaroslav Hyrsl Heverova 222, CZ-280 00 Kolin, Czech Republic ABSTRACT: Several unusual star and cat's-eye...from Brazil has an iridescent chatoyancy Grey orthoclase moonstone from Sri Lanka has a unique combination...strong cat's-eye caused by an albite-oligoclase orthoclase perthite. Four-rayed star tourmaline (bicolour...scraped from the girdle; the results indicate orthoclase feldspar, which confirms its identity as a moonstone...Vishnevye Mts. in the Urals, a famous pegmatite region about 100 km south of Ekaterinberg, were purchased |
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