 | | Journal (issue) | | WASHINGTON November 3, 2007 9:00 am to 5:00 pm Clark County P. U. D. Building 1200 Fort Vancouver Way Vancouver...of Eugene, Oregon near the town of Trent in Lane County, Oregon, just southeast of Springfield/Eugene (Staples...Trent, Lane County, Oregon Fig. 5 Yellow orpiment needles in chalcedony, Trent, Lane County, Oregon Fig...realgar needles, Royal Reward mine, Green River, King County, Washington Fig. 6 Yellow orpiment coating red...covered with colorless chalcedony. Trent, Lane County, Oregon. Fig. 7 Hollow needles, formerly realgar |  | | Journal (article/letter/editorial) | | Montana Mineral Locality Index Downloaded by [University of Nebraska, Lincoln] at 20:00 09 April 2015...2015 K NOWN AS THE TREASURE STATE, Montana is rich in mineral and gemstone localities. The state motto...The middle third of the state is known as the Montana alkali province where the sediments have MICHAEL...Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded by [University...one. The mines at Butte in Silver Bow County and the Black Pine mine in Granite County have produced many |  | | Journal (article/letter/editorial) | | Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic...Springer-Verlag 2002 Abstract At Gordon Butte (Crazy Mountains, Montana), agpaitic nepheline±syenite pegmatites...clinopyroxene in the Gordon Butte rocks is from Fe-poor diopside to aegirine±augite in the malignites and...lamprophyllite. The evolutionary history of the Gordon Butte pegmatites can be subdivided into primary, agpaitic...loparite. The mineralogy of the pegmatites from Gordon Butte, other potassic complexes, and sodic agpaitic |  | | Conference Paper/Abstract | | associated alkaline rocks from Gordon Butte, Crazy Mountains (Montana) Roger H. Mitchell (Lakehead University)...Alkaline igneous rocks of central and western Montana (U.S.A.) exhibit a great petrographic diversity...Alkaline parageneses of different provenance from Montana have been shown to contain a variety of rare minerals...assemblages from the Gordon Butte area, northern Crazy Mountains. At Gordon Butte, four major intrusive...normally zoned olivine (Fo87 ⇒ Fo78), augite zoned to aegirine-augite, apatite and phlogopite. Also present |  | | Report (issue) | | MUSSELSHELL VALLEY, MUSSELSHELL, MEAGHER, AND SWEETGRASS COUNTIES, MONTANA. By C. F. BOWEN. INTRODUCTION...lying chiefly in Tps. 7 to 9 N., Ks. 12 to 23 E. Montana principal meridian. It extends from the town of...Paul Railway near Roundup. 1 Lindgren, Waldemar, Montana coal fields: Tenth Census U. S., vol. 15, Mining...Cretaceous and lower Tertiary section in south-central Montana: Am. Philos. Soc. Proc., vol. 1, pp. 207-224, 1902...relations of the " Ceratops beds " of Wyoming and Montana: Washington Acad. Sci. Proc., vol. 11, pp. 251-265 |  | Wu, Bin, Wang, Ru-Cheng, Yang, Jin-Hui, Wu, Fu-Yuan, Zhang, Wen-Lan, Gu, Xiang-Ping, Zhang, Ai-Cheng (2015) Wadeite (K 2 ZrSi 3 O 9 ), an alkali-zirconosilicate from the Saima agpaitic rocks in northeastern China: Its origin and response to multi-stage activities of alkaline fluids. Lithos, 224. 126-142 doi:10.1016/j.lithos.2015.02.008 | Journal (article/letter/editorial) | | and Zaitsev, 1999), and at Gordon Butte in the Crazy Mountains in the USA (Chakhmouradian and Mitchell...Hills in the USA (Carmichael, 1967), in the alkaline pegmatites of Gordon Butte in the USA (Chakhmouradian...in the aegirine–nepheline syenite and aegirine–augite nepheline syenite. The aims of the study are to...aegirine–nepheline syenite and fine-grained aegirine–augite nepheline syenite according to our observations...of aegirine–nepheline AC syenite and aegirine–augite nepheline syenite intrude the earlier aegirine–nepheline |  | Filina, Maria I., Aksenov, Sergey M., Sorokhtina, Natalia V., Chukanov, Nikita V., Kononkova, Natalia N., Belakovskiy, Dmitriy I., Britvin, Sergey N., Kogarko, Lia N., Chervonnyi, Alexandr D., Rastsvetaeva, Ramiza K. (2019) The new mineral fluorbarytolamprophyllite, (Ba,Sr,K)2[(Na,Fe2+)3TiF2][Ti2(Si2O7)2O2] and chemical evolution of lamprophyllite-group minerals in agpaitic syenites of the Kola Peninsula. Mineralogy and Petrology, 113 (4) 533-553 doi:10.1007/s00710-019-00664-0 | Journal (article/letter/editorial) | | rocks are potassium feldspar, Ti-rich aegirine-augite, aenigmatite, alkaline amphiboles, astrophyllite...University of Notre Dame, Notre Dame, IN 46556, USA 4 Institute of Problems of Chemical Physics, Russian...(Wight and Chao 1995), Bearpaw Mountains and Gordon Butte in the United States (Chakhmouradian and Mitchell...potassium feldspar (25–30 vol.%), Ti-rich aegirine-augite (10–15 vol.%), aenigmatite (10–15 vol.%), amphiboles...Nb2O5 SrO BaO F Total –O=F Total Ti-rich aegirine-augite (Px) and subhedral zoned pinkish-brown crystals |  | | Journal (article/letter/editorial) | | an apparently primary phase overgrowing aegirine augite (clinopyroxene-I). The earliest amphibole is eckermannite...ranging in composition from early euhedral aegirine–augite to acicular flow-aligned aegirine. Relict amphiboles...agpaitic nepheline syenite occurring at Gordon Butte, Montana, by Chakhmouradian and Mitchell (2002)....Mg and Fe content, is an alumina-poor aegirine augite (Table 1, comp. 4 and 5; Fig. 2a). ClinopyroxeneII...ClinopyroxeneII is alumina-poor titanian aegirine augite (Table 1, comp. 6; Fig. 2a). Clinopyroxene-III is aegirine |  | | Journal (article/letter/editorial) | | Fogo-A deposit, containing feldspar, arfvedsonite, augite and/or aegirine, Fe-Ti oxide, zircon, pyrochlore...Crystal rims and interstitial pyroxenes are aegirine-augite in both syenite groups (Table 5). Annite Annite...nepheline syenite pegmatites from Gordon Butte, Crazy Mountains (Montana, USA). They suggested that leaching...associated interstitially with quartz, aegirine-augite, amphibole, zircon, apatite and britholite-(Ce)...pyroxene (ferroan diopside evolving to aegirine-augite) became entrapped as inclusions in the outer zones |  | | Journal (article/letter/editorial) | | magnesio-arfvedsonite, albite, natrolite, aegirine-augite zoned to aegirine, loparite-(Ce), rinkite, eudialyte...localities (e.g., Bearpaw Mountains and Gordon Butte in Montana) exhibit a similar compositional trend... Inagli, Ilímaussaq, Bearpaw Mountains. and Gordon Butte (Rønsbo 1989, Pekov et al. 1995, Khomyakov 1995...nepheline-syenite pegmatites at Pegmatite Peak, Bearpaw Mts, Montana. Mineral. Petrol. 67, 85-110. 3/28/02, 16:23 ...Zrrich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): Comparisons between potassic |  | | Report (issue) | | _________________ ___. Nevada ___________ Elko County. - ______ ... _ Star mine, Harrison Pass _____... Tuscarora Range _____ _ ._. ________ Humboldt County Golconda manganese-tungsten depositNorth workings...naine________________ Mine near Green Talc mine. _____ Nye County ____ _._-___-________-___ Gabbs area __ _____________________..._____ Brucite and magnesite deposits. __ Pershing County __ Rocks in the West Humboldt Range ..~ Limerick...California Continued Nevada Continued White Pine County.._________________ Cherry Creek district______________ |  | | Journal (article/letter/editorial) | | nepheline, sodalite, sodic amphibole, and aegirine-augite are the major minerals with cancrinite, biotite...crystals in a paragenesis with nepheline, aegirine-augite, early poikilitic eudialyte-I, rinkite, and astrophyllite...apatite-group minerals enclosed in prismatic aegirine-augite (Fig. 3f). SrAp also appears as isolated grains...strontian fluorapatite enclosed by prismatic aegirine-augite. (g) Complex alteration of strontian fluorapatite...Generations are given in Roman numerals; Ae-Aug: aegirine-augite (clinopyroxene-I), FApSr: strontian apatite, Anl: |  | | Book | | ROADSIDE % JEOLOGY of Montana David Alt and Donald W. Hyndman ROADSIDE N JEOLoGY of Montana David Alt Donald...Roadside geology of Montana. Bibliography: p. Includes index. 1. Geology — Montana — Guide-books. I. Hyndman...know something about the rocks and landscapes of Montana. We hope our professional colleagues will enjoy...dealing with the four major geologic provinces in Montana. Each starts with its own more specific narrative...Nearly every geologist who has ever worked in Montana contributed something to this book. We read almost |  | Liferovich, R. P., Mitchell, R. H., Zozulya, D. R., Shpachenko, A. K. (2006) Paragenesis and composition of banalsite, stronalsite, and their solid solution in nepheline syenite and ultramafic alkaline rocks. The Canadian Mineralogist, 44 (4) 929-942 doi:10.2113/gscanmin.44.4.929 | Journal (article/letter/editorial) | | “Ledig” foyaite, Pilansberg complex, South Africa. augite, phlogopite, nepheline, microcline, analcime, and...similar to the most sodic nepheline reported from augite syenite at Ilímaussaq (Markl et al. 2001). These...nepheline with subordinate amounts of aegirine-augite and ferropargasite. Minor and accessory phases...(UK), and Tony Nikischer (Excalibur Mineral Corp., USA) for providing stronalsite and banalsite samples...nepheline-syenite pegmatites at Pegmatite Peak, Bearpaw Mts., Montana. Mineral. Petrol. 67, 85-110. Chakhmouradian, A |  | | Journal (article/letter/editorial) | | mafic minerals of phase I rocks comprise olivine, augite and Fe–Ti oxides, which are substituted in the...Puklen, Marks et al. (2003)). The early Ilı́maussaq augite syenite shows an internal development towards more...1; Mitchell and Vladykin, 1996) and from Gordon Butte, Montana (Chakhmouradian and Mitchell, 2002; not...Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains, Montana, (USA): comparisons between potassic...Fractionation and assimilation processes in the alkaline augite syenite unit of the Ilı́maussaq Intrusion, South |  | | Journal (article/letter/editorial) | | phenocryst assemblage is alkali feldspar + nepheline + augite + olivine + magnetite and indicates liquidus temperatures...western termination, it appears to cut the marginal augite syenite of the Ilõ´maussaq intrusion (Larsen and...Ilímaussaq agpaites micro-kakortokite Ilímaussaq augite syenite Sample locality with sample numbers 3...samples contain additional phenocrysts of olivine, augite and magnetite up to some mm in size. The major...anorthite analcime apatite arfvedsonite astrophyllite augite celsian diopside eudialyte fayalite uorite forsterite |  | | Journal (article/letter/editorial) | | SaintHilaire (Québec, Canada), and Bearpaw Mts. (Montana, USA). The present work also provides new data on...feldspar, nepheline, prismatic aegirine or aegirine-augite, alkali amphiboles) with a deuteric or metasomatic...nepheline-syenite pegmatites at Pegmatite Peak, Bearpaw Mts, Montana. Mineral. Petrol., 67, 85-110. —, — (2002): The...Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): Comparisons between potassic |  | | Journal (article/letter/editorial) | | of rasvumite from Mont Saint-Hilaire. aegirine-augite zoned to aegirine, villiaumite, intergrowths of...that commonly exhibit an acicular habit (aegirine-augite, pectolite and rasvumite) here form nearly equidimensional...equidimensional crystals, and the aegirine-augite is devoid of sector zoning so typical of clinopyroxenes...Wittington, C.S., Park, Y.-R. (1999): Sector-zoned augite megacrysts in the Aleutian high alumina basalts:...Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic |  | | Report (issue) | | volcanic vent, and the young lava near Haystack Butte had been mentioned by Hodge (1932; 1942, p. 29-30)...effusive materials at McDermid Cone and Haystack Butte (fig. 7) belong to the prominent area of "Simcoe...thickness as great as 20 feet in places north of Gordon ridge. In this work, the loess was not mapped because...northwest across the Columbia River to Haystack Butte and Jaekel Bench. The east end of Milter Island...composed of labradorite (An50-55 ), 55 percent; augite (identified commonly as pigeonite by Campbell, |  | Wu, Bin, Wang, Ru-Cheng, Yang, Jin-Hui, Wu, Fu-Yuan, Zhang, Wen-Lan, Gu, Xiang-Ping, Zhang, Ai-Cheng (2016) Zr and REE mineralization in sodic lujavrite from the Saima alkaline complex, northeastern China: A mineralogical study and comparison with potassic rocks. Lithos, 262. 232-246 doi:10.1016/j.lithos.2016.07.013 | Journal (article/letter/editorial) | | divided into aegirine nepheline syenite and aegirine–augite nepheline syenite (Wu et al., 2015), and ACCEPTED... ACCEPTED MANUSCRIPT pegmatitic dikes of the aegirine–augite nepheline syenite commonly cut the aegirine nepheline...P alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic...Fractionation and assimilation processes in the alkaline augite syenite unit of the Ilimaussaq intrusion, South |  | | Journal (article/letter/editorial) | | AYLOR , L.A. (1980): Crystal/liquid partitioning in augite: effects of cooling rate. Earth Planet. Sci. Lett...nepheline-syenite pegmatites at Pegmatite Peak, Bearpaw Mts, Montana. Mineral. Petrol. 67, 85-110. GILBERT, M.C., HELZ...Zrrich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic...(1958): Cerite from Mountain Pass, San Bernardino County, California. Am. Mineral. 43, 460-475. H EAMAN...in the Potash Sulphur Springs complex, Garland County, Arkansas. Am. Mineral. 74, 132-140. HENMI, C. |  | Elliott, H.A.L., Wall, F., Chakhmouradian, A.R., Siegfried, P.R., Dahlgren, S., Weatherley, S., Finch, A.A., Marks, M.A.W., Dowman, E., Deady, E. (2018) Fenites associated with carbonatite complexes: A review. Ore Geology Reviews, 93. 38-59 doi:10.1016/j.oregeorev.2017.12.003 | Journal (article/letter/editorial) | | previously shattered 366 country rock at Mountain Pass, USA (Castor, 2008); the intrusion of carbonatite 367...Bull Hill 378 phonolitic diatreme at Bear Lodge, USA (Moore et al., 2015) and diatreme breccias 379 ...evolution. For example, at Cantley, pyroxenes with an augite-rich 490 core and aegirine-rich rim occur in...(Hogarth and Lapointe, 1984). Similarly, aegirine-augite at Fen display erratic core- 494 rim zoning (Andersen...1989) and fenite at Silai Patti contains aegirine-augite crystals 495 rimmed by magnesio-arfvedsonite |  | | Report (issue) | | availability of ground water in the Fort Rock Basin, Lake County, Oregon, by E. R. Hampton. (C) Effect of tectonic...the operation would be under the supervision of a county watermaster or similar official. It is assumed...resources of the Upper Grande Ronde River basin, Union County, Oreg.: U.S. Geol. Survey open-file report. Hart...the operation would be under the supervision of a county watermaster or similar official. It is assumed...resources of the Upper Grande Ronde River basin, Union County, Oreg.: U.S. Geol. Survey open-file report. Hart |  | Wu, Bin, Wen, Han-Jie, Bonnetti, Christophe, Wang, Ru-Cheng, Yang, Jin-Hui, Wu, Fu-Yuan (2019) Rinkite-(Ce) in the nepheline syenite pegmatite from the Saima alkaline complex, northeastern China: Its occurrence, alteration, and implications for REE mineralization. The Canadian Mineralogist, 57 (6) 903-924 doi:10.3749/canmin.1900042 | Journal (article/letter/editorial) | | Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): Comparisons between potassic...Fractionation and assimilation processes in the alkaline augite syenite unit of the Ilı́maussaq intrusion, South |  | Kynicky, J., Chakhmouradian, A. R., Xu, C., Krmicek, L., Galiova, M. (2011) DISTRIBUTION AND EVOLUTION OF ZIRCONIUM MINERALIZATION IN PERALKALINE GRANITES AND ASSOCIATED PEGMATITES OF THE KHAN BOGD COMPLEX, SOUTHERN MONGOLIA. The Canadian Mineralogist, 49 (4) 947-965 doi:10.3749/canmin.49.4.947 | Journal (article/letter/editorial) | | Zr-bearing minerals: albite (Na, Ka), sanidine (K, Ka), augite (Si, Ka), zircon (Zr, La), almandine (Al, Ka),...Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic |
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