 | | Journal (article/letter/editorial) | | Amsterdam - Printed in The Netherlands ELK CREEK, NEBRASKA, CARBONATITE: STRONTIUM GEOCHEMISTRY D.G...N.M. (USA) S.B. TREVES Department o f Geology, The University o f Nebraska, Lincoln, Nebr. (USA) and...The University of New Mexico, Albuquerque, N.M. (USA) Received June 5, 1975 Revised version received...August 8, 1975 Subsurface carbonatite at Elk Creek, Nebraska has been recognized in drill core taken from...this interval consists of carbonated breccia and phlogopite-bearing carbonate rock. Total REE, P2Os and Nb205 |  | | Journal (article/letter/editorial) | | com/locate/lithos The Homestead kimberlite, central Montana, USA: mineralogy, $ xenocrysts, and upper-mantle xenoliths...Geological Survey, 954 National Center, Reston, VA 20192, USA Received 27 June 2003; accepted 25 February 2004...as xenocrysts and phenocrysts in a matrix of phlogopite, monticellite, diopside, serpentine, chlorite...and the presence of phlogopite-bearing veins and disseminated phlogopite. Phlogopite-bearing veins may...Montana. Inset shows map area in Montana outline in USA. Alkalic rocks: solid black, intrusive; V pattern |  | | Journal (article/letter/editorial) | | Mineral Locality Index Downloaded by [University of Nebraska, Lincoln] at 20:00 09 April 2015 K NOWN AS THE...established Montana’s first mining camp at Gold Creek in 1860. Geologic Provinces The state can be divided...Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded by [University of Nebraska, Lincoln] at 20:00...mines at Butte in Silver Bow County and the Black Pine mine in Granite County have produced many fine crystal...Beaverhead County, the pegmatites of Jefferson County, and the Snowbird mine in Mineral County continue |  | | Journal (article/letter/editorial) | | evaluated [e.g. Aley and Upper Fir (Canada); Elk Creek (USA)] or re-evaluated [e.g. Oka (Canada); Fen (Norway);...(nepheline–clinopyroxene) or melilitoid (olivine– melilitite–phlogopite–clinopyroxene) suites. Some carbonatites have...Taseko Mines Ltd., at the Aley carbonatite. In the USA there has been only limited exploration for Nb in...earth element potential. The exception is the Elk Creek carbonatite complex (Carlson and Treves, 2005;...carbonatites with country rocks are characterized by phlogopite-rich fenites (glimmerites). The Nb oxides in |  | | Journal (article/letter/editorial) | | CLINOHUN,{ITEAND ASSOCIATED MINERALS FROM WOLF CREEK, MONTANA1 E. Wn. HuNntcu, The Unitersi.tyof Michi'gan...Arbor, Michigan' ABSTRACT INrnooucnoN The wolf creek pluton is the largest of seven Prebeltian ultramafic...writer grate- first field studies there. The wolf creek intrusive is about 23 miles airline southeast of...in Beaverhead County but extending for a short distance northeast into Madison county (Fig. 1), near...bounded on the southwest by the Black Tail Creek drainage, to which Elk and Moose Creeks are tributary (Fig |  | | Journal (article/letter/editorial) | | 77036 ERIC FRITZSCH 1520 S . 169th Avenue Omaha, Nebraska 68 130 out11 Dakota’s mineral localitics would...FiridofGt~rnSphultirite ut IIIP Bulinut Zinc Mine, St. Luwrence County, tditor of NPW b r k ” unrl iipptwwl in the No~~er...additions. Mlneral Index by Counties Brule County Elm Creek, IS mi. S. of Chamberlain, near junction with...of Pierre Formation: barite (gray roses). Butte County Belle Fourche, 6 mi. W., secs. 23, 24, 25. and...fork of Moreau River: barite* (similar to Elk Creek. Meade County, but smaller), calcite (yellow crystals) |  | Caine, Jonathan S., Manning, Andrew H., Berger, Byron R., Kremer, Yannick, Guzman, Mario A., Eberl, Dennis D., Schuller, Kathryn (2010) Characterization of Geologic Structures and Host Rock Properties Relevant to the Hydrogeology of the Standard Mine in Elk Basin, Gunnison County, Colorado. Open-File Report 2010-1008. US Geological Survey doi:10.3133/ofr20101008 | Report (issue) | | Hydrogeology of the Standard Mine in Elk Basin, Gunnison County, Colorado Open-File Report 2010–1008...Geological Survey Front cover: Photograph of upper Elk Basin looking east from the cirque ridge. Characterization...Hydrogeology of the Standard Mine in Elk Basin, Gunnison County, Colorado By Jonathan Saul Caine, Andrew...hydrogeology of the Standard Mine in Elk Basin, Gunnison County, Colorado: U.S. Geological Survey Open-File.............2 Topographic map showing location of Elk Basin study area, Colorado...................... |  | Chakhmouradian, Anton R., Reguir, Ekaterina P., Kressall, Ryan D., Crozier, Jeremy, Pisiak, Laura K., Sidhu, Ravinder, Yang, Panseok (2015) Carbonatite-hosted niobium deposit at Aley, northern British Columbia (Canada): Mineralogy, geochemistry and petrogenesis. Ore Geology Reviews, 64. 642-666 doi:10.1016/j.oregeorev.2014.04.020 | Journal (article/letter/editorial) | | of Nb in these rocks is contained in rutile, phlogopite and, to a much lesser extent, amphibole. When...southern slope of an arcuate ridge south of the Aley Creek as a roughly triangular body in plan view measuring...a similar geodynamic setting at the Rock Canyon Creek, Ice River, Bearpaw Ridge and Wicheeda Lake (Dalsin...Ranges, British Columbia, Canada Elk Creek, Johnson/ Pawnee Co's, Nebraska, USA Barreiro, Araxá, Minas Gerais...Horkel et al., 1984; Issa Filho et al., 1984; Johnson and Tegera, 2005; Kukharenko et al., 1965; Lapin |  | | Journal (article/letter/editorial) | | xled—crystallized xline—crystalline ALABAMA—W. M. Johnson, RFD 6, Knoxville, Tenn., has sent in the following...road. Yellville is the county seat and is situated in about the center of the county. I do not know if this...road. Garnets can be recovered by panning in the creek but are mostly of small size. To recover the large...Sea (in southern California —chiefly in Imperial County) one of the World's great geological freaks of...shores." ARKANSAS—The Morning Star mine, in Marion County, Ark., has furnished many handsome specimens of |  | | Journal (issue) | | WASHINGTON November 3, 2001 9:30 am to 6:30 pm Clark County P. U. D. Building 1200 Fort Vancouver Way Vancouver...will talk and show slides ofcollecting along Elk Creek, South Dakota. Afternoon: We will have a short...Society, the Valley Rock Rustlers, and the ElDorado County Gem and Mineral Society in Placerville. Being so...also collected in such locations as San Benito County, Death Valley, and Crestmore Quarry. While living...last descent off the lava flow is White Branch Creek, a little trickle of water by August, running through |  | | Book | | Peaks; crystallized at Bergen's ; Ranch, Jefferson County; on Boulder Peak. Agate,— See Quartz. — At Quartzville...Quartz Hill, Central Almandite. See Garnet. Boulder County. City Gold — Allophanite. —Franklin Mine, in Gilson...in the KeyBoulder County. AMBER.— (One specimen found near the head of Cherry Creek. This may, however...AMETHYST.—See Quartz. AMIANTHITE. — North Boulder Creek. AMPHlBOLim — Occurs at numerous localities...Found on Buffalo Peaks; Montgomery, Head of Ohio Creek in volcanic breccia; on Gunnison in trachytes | | | Report (issue) | | eastern part of Beaverhead County, Montana, and the western part of Madison County, Montana. The study area...Range, including the "Wolf Creek pluton" and the "Elk Sweetwater Basin Creek vermiculite deposit"—The...map (scale 1:6,000) of the Elk Creek vermiculite deposit (within the Wolf Creek pluton) is provided by Berg...Berg (1995). The Wolf Creek pluton is exposed in sections 1, 2 and 11, T. 9 S., R. 7 W.; section 6, T...square miles to the north and west of the Wolf Creek pluton Dillon Madison 287 Range Range Dillon |  | | Journal (article/letter/editorial) | | of magnesio-arfvedsonite + potassium feldspar, phlogopite + potassium feldspar together with pyrochlore-bearing...g. Aley, Upper Fir and Eldor (Canada); Elk Creek (Nebraska USA); Tomtor (Russia)] or re-evaluated [e.g...al., 2017), located adjacent to the Dead Horse Creek Road, northwest of the town of Marathon, approximately...heterogeneous banded texturally-diverse olivine phlogopite calcite carbonatites with numerous clasts and...e + potassium feldspar, potassium feldspar + phlogopite together with pyrochlore-apatitite set in matrices |  | | Report (issue) | | Metasomatic metamorphism in western Clearwater County, Idaho. (B) Anorthosite and associated rocks in...the Elk River-Clarkia area, Idaho. (D) Idaho batholith near Pierce and Bungalow, Clearwater County, Idaho... Metasomatic Metamorphism in Western Clearwater County Idaho By ANNA HIETANEN METAMORPHIC AND IGNEOUS...in garnet amphibolite from the side of Orofino Creek about 13 miles east of Orofino_________________...kyanite-garnet amphibolite exposed along Orofino Creek _ ________________________ Photomicrograph of sheared |  | | Report (issue) | | Cover. The Mountain Pass Mine, San Bernardino County, California, was the only active producer of rare-earth...Photograph of the Mountain Pass Mine in San Bernardino County, California, which was the only active producer...Molycorp, Inc.’s Mountain Pass Mine in San Bernardino County, California. Mine production at Mountain Pass began...Diamond Creek, Idaho; Lemhi Pass in Idaho and Montana; Pea Ridge, Missouri; Elk Creek, Nebraska; Thor Mine...Photograph of the Mountain Pass Mine in San Bernardino County, California, which was the only active producer | | Van Gosen, Bradley S., Hammarstrom, Jane M., Kellogg, Karl S., Berg, Richard B. (1998) Map showing areas with potential for garnet resources in bedrock and placer in the Blacktail Mountains and the Gravelly, Greenhorn, Ruby, and Snowcrest ranges of southwestern Montana. Open-File Report Vol. 1998 (98-224) US Geological Survey doi:10.3133/ofr98224a | Report (issue) | | eastern part of Beaverhead County, Montana, and the western part of Madison County, Montana. The study area...sillimanite, cummingtonite, biotite, anthophyllite, and phlogopite. Detailed descriptions of the garnet-bearing...quartz-mica schist; sillimanite schist; tremolite, phlogopite, and anthophyllite schist; quartz-feldspar-biotite...in the areas of the Ruby River, Blacktail Deer Creek, and the northeastern part of the Gravelly Range...northern Greenhorn Range. In the area of the Elk Creek vermiculite deposit of the southern Ruby Range |  | | Journal (article/letter/editorial) | | REE- fluorocarbonates, pyrochlore, fluorite, and phlogopite of a dolomitic carbonatite’ was reported at the...one of the silicates, forsterite, diopside, or phlogopite’. According to Krasnova et al. (2004), most of...sodic pyroxene; nepheline, calcite and biotite/phlogopite may also be present and typical accessories are...microcline), and in some cases may contain low-alumina phlogopite or biotite. Potassic fenites most commonly develop...complex, Namibia (Drüppel et al. 2005) and the Gifford Creek ferrocarbonatite complex, Western Australia (Pirajno |  | | Journal (issue) | | WASHINGTON May 2, 2009 9:00 am to 5:00 pm Clark County P. U. D. Building 1200 Fort Vancouver Way Vancouver...Museum (MTMM) at Montana Tech. Analcime Carbon County: Sedimentary rocks, various locations - Frontier...Livingston Group - minor amounts (Roberts, 1963). Carter County: Sedimentary rocks, Ekalaka area - from lignite...(Denson & Gill, 1965; Sheppard, 1976). Garfield County: Igneous rocks, Smoky Butte (Velde, 1975; Mitchell...1987; Hearn, 1989b; Irving & Hearn, 2003). Fergus County: Igneous rocks, Judith Mountains (Weed & Pirsson |  | | Report (issue) | | Phyllosilicates Lepidolite Biotite Zinnwaldite Phlogopite Glauconite Kaolinite Talc Muscovite (Sericite)...prospects in the lower Ludlow lignites. Harding County: 1. Abemathyite has been identified as a component...Soluble In hydrochloric acid, yielding Custer County: 1. Allanite has been reported to occur as small...the Needles area. Runner (7) p 453. Pennington County: 1. Allanite occurs as microscopic inclusions in...H2O0.05 Insol. 1.12 Total 100.34± Occur. Custer County: 1. A greenish-black nodule of alluaudite 1 foot |  | Maria, Anton H., Denny, F. Brett, DiPietro, Joseph A., Howard, Kevin F., King, Maxwell D. (2019) Geochemistry and Sr-Nd isotopic compositions of Permian ultramafic lamprophyres in the Reelfoot Rift – Rough Creek Graben, southern Illinois and northwestern Kentucky. Lithos, 340. 191-208 doi:10.1016/j.lithos.2019.05.007 | Journal (article/letter/editorial) | | ultramafic lamprophyres in the Reelfoot Rift – Rough Creek Graben, southern Illinois and northwestern Kentucky...ultramafic lamprophyres in the Reelfoot Rift – Rough Creek Graben, southern Illinois and northwestern Kentucky...ultramafic lamprophyres in the Reelfoot Rift – Rough Creek Graben, southern Illinois and northwestern Kentucky...Typically, these rocks are fine grained, with phlogopite, serpentinized olivine (~Fo88), diopside, perovskite...metasomatized peridotite source containing CR phlogopite-rich veins. Derivation of the lamprophyres from |  | | Report (issue) | | 00 00 .s ~ ~ 00 ~ ~ "Sh Belt Series in the Elk River-Clarkia Area .s r ~ -<1 s Idaho ~ ~...344-C Metamorphism of the Belt Series in the Elk River-Clarkia Area Idaho By ANNA HIETANEN METAMORPHIC...Distribution of potassium feldspar ________________ --- _ Elk River-Clarkia area as a part of the outer contact...PLATE FIGURE 1. Reconnaissance geologic map of the Elk River-Clarkia area, Idaho. . 1. 2. 3. 4A, B. 5A...Potlatch Creek ___________________ ------Camera Iucida drawing of diopside quartzite south of Elk River |  | | Report (issue) | | Alkaline granite and syenite LCT pegmatite Elk Creek Iron Hill (Powderhorn) Rare-metal granite Nb-Ta...Volta Grande 0.01 Morro dos Seis Lagos Araxá P Elk Creek Motzfeldt Bonga Thor Lake Niobec Ghurayyah Pitinga...States Rare-metal granite S 65.71 –165.23 Elk Creek United States Carbonatite S 40.27 –96.19...Kougarok NA 102.6 0.638 NA In+If Daigle, 2012 Elk Creek NA 0.374 0.057 NA NA Long and others, 2010...(sodium or potassium) pyroxenes and amphiboles, phlogopite (magnesium-rich mica), magnetite, apatite (calcium |  | | Book | | Greenland Lamproites 3.2.1. Group Name: Prairie Creek 3.2.2. Group Name: Leucite Hills 3.2.3. Group Name:...Kimberley 4.4.3. Murcia-Almeria 4.4.4. Prairie Creek 4.5. Conclusions and Preferred Model 103 104 107...Diatremes Summary Mineralogy of Lamproites 6.1. Phlogopite 6.1.1. Paragenesis 6.1.2. Leucite Hills, Wyoming...Australia 6.1.4. Argyle, West Australia 6.1.5. Prairie Creek, Arkansas 6.1.6. Murcia-Almeria, Spain 6.1.7. Smoky...Phase Relationships of Natural Lamproites 8.2.1. Phlogopite Lamproites 8.2.2. Olivine and Madupitic Lamproites |  | | Report (volume) | | meridian of 76° 30', from Tompkins County, New York, to Bradford County, Pennsylvania, by Henry S. "Williams...cents. 16. On the Higher Devonian Faunas of Ontario County, New York, by John M. Clarke. 1885. 8°. 86 pp....57 pi. Price 25 cents. 38. Peridotite of Elliott County, Kentucky, by J. S. Diller. 1887. 8°. 31 pp. 1...Alabama Rivers, by Eugene A. Smith and Lawrence C. Johnson. 1887. 8°. 189 pp. 21 pi. Price 15 cents. 44. Bibliography............................................... Phlogopite...... ...................................... |  | | Report (volume) | | Rosebud, and Fergus Counties Montana By WILLIAM D. JOHNSON, JR., and HOWARD R. SMITH G·E 0 L 0 G I CAL S...Library has cataloged this publication as follows: Johnson, William David, 1923Geology of the Winnett-Mosby...Rosebud, and Fergus Counties, Montana, by William D. Johnson, Jr., and Howard R. Smith. Washington, U.S. Govt...sandstone member_______________________________ Skull Creek member___________________________________ Unnamed...Cretaceous_____________________________________________ Telegraph Creek formation __ ------------------------------Eagle |
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