 | | Journal (article/letter/editorial) | | ites fromthe Wet MountainsArea, Fremont and Custer Counties,Colorado TnEOr)ORE J. ARMBRUSTMACHER Abstract...Carbonatites associated with alkalic rocks of the McClure Mountain and Gem Park Complexes, andthecomplex at...(1.45 b.y.) (Taylor et al., 1975a,b) (Fig. Park Complex(Parker and Sharp, 1970) outlined 1). variousdetailsof...the McClure Mountain dikeswere mappedwithin the Iron Mountainmafic- Complex,the Gem Park Complex,and...and the complex ultramaficportion of the McClure Mountain Com- at Democrat Creek. The mafic-ultramaficparts |  | | Report (issue) | | Washington Zinc ore, Friedensville, Pa. Banded iron-formation. Palmer, Mich. 6. Ribbon asbestos ore...Peninsula, Mich. 10. Porphyry molybdenum ore, Colorado 11. Zinc ore, Edwards, N.Y. 12. Manganese nodules...Elements in the Wet Mountains Area, Fremont and Ouster Counties, Colorado By THEODORE J. ARMBRUSTMACHER GEOLOGY...elements in the Wet Mountains area, Fremont and Custer Counties, Colorado. (Geology and resources of thorium...16:1049-F 1. Thorium ores—Colorado—Wet Mountains Region. 2. Earths, Rare—Colorado—Wet Mountains Region. 3 |  | | Report (issue) | | (1) Ivigtut, Greenland. (2) St. Peters Dome, Colorado, USA. (3) NaCaAlF6 • H2 O. Polymorphism & Series:...thomsenolite. Occurrence: As an alteration product of cryolite and other alkali aluminum fluorides, most commonly...commonly in pegmatites. Association: Cryolite, thomsenolite, chiolite, elpasolite, ralstonite, sellaite...sellaite, fluorite. Distribution: In the Ivigtut cryolite deposit, southwestern Greenland. From near Lake Gjerdingen...the Hagendorf pegmatite, Bavaria, Germany. In the USA, at St. Peters Dome, near Pikes Peak, El Paso Co |  | | Report (issue) | | as irregular grains, massive; as inclusions in cryolite and intergrowths with fluorite. Twinning: With...In the cryolite deposit and overlying pegmatite (Ivigtut, Greenland). Association: Cryolite, chiolite...(Ivigtut, Greenland). Distribution: From the Ivigtut cryolite deposit, southwestern Greenland. At St. Peters...the Goldie carbonatite, McClure Mountain-Iron Mountain, Fremont Co., Colorado; from the Zapot pegmatite...Hawthorne, Fitting district, Mineral Co., Nevada, USA. In the Mt. Cleveland tin mine, western Tasmania |  | | Report (issue) | | milky; may be surficially discolored yellow by iron oxides; colorless in transmitted light. Luster:...silicified limestones. Association: Thomsenolite, cryolite, pachnolite, chiolite, elpasolite, colquiriite...Distribution: From the Ivigtut cryolite deposit, southwestern Greenland. In the USA, at St. Peters Dome, near...the Goldie carbonatite, McClure Mountain-Iron Mountain, Fremont Co., Colorado; in the Morefield pegmatite...Pennsylvania, USA, who first noted the species. Type Material: Yale University, New Haven, Connecticut, USA, 1 |  | | Report (issue) | | 38 X-ray Powder Pattern: St. Peters Dome, Colorado, USA. 4.35 (10), 2.13 (6), 1.837 (6), 1.813 (6),...in base-metal deposits. Association: Fluorite, cryolite, thomsenolite, pachnolite, gearksutite, ralstonite...Ivigtut cryolite deposit, southwestern Greenland. From Mt. Bischoff, Tasmania, Australia. In the USA, at...the Goldie carbonatite, McClure Mountain-Iron Mountain, Fremont Co., Colorado; in the Dugway district |  | | Book (edition) | | Carbonatites are now the major sources of RE elements (Mountain Pass, California) and of Nb (Oka, Quebec and Araxa...detailed geological survey of the Alné Island complex and announced his results in a series of papers...most of the field work on the Iron Hill complex of Gunnison County, Colorado, in 1912-1913. Although his...never accepted the idea of an igneous origin for the Iron Hill carbonatite. In 1924 Bowen, who had visited...fairly pure calcite (Garson and Smith, 1958). The complex was first studied by F. Dixey, and it was he who |  | 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). |  | | Book | | Lengai natrocarbonatite volcano and the Ilimaussaq complex, but comparative studies on alkaline rocks have...other hand many occurrences are so extensive and complex that the descriptions will only be adequate to...2·1 Cariboo-Bell 22 Horsefly Creek 23 Takomkane Mountain area 2 4 B l u e River area 25 Verity 26 Rayfield...29 Perry R i ver 30 Mount Copeland 31 Trident Mountain 32 K i n basket Lake 33 Mount Laussedat 34 Mount...64 65 66 67 68 69 70 71 72 73 74 75 76 Kruger Mountain Rossland dyke Crowsnest volca nics Sweet G rass |  | | Report (issue) | | Chromite-chromium ore. Wash. Zinc ore, Friedensville, Pa. Banded iron formation,Palmer, Mich. 6. Ribbon asbestos ore,...Formation, Piceance Creek basin, northwestern Colorado.................................................Formation in the Piceance Creek basin, northwestern Colorado..... C6 13 18 20 20 24 25 TABLES TABLE 1. 2...___________ Piceance Creek basin, northwestern Colorado ————————————————————————————— C9 9 11 12 12 14...Chemical composition ranges of saprolite from Spokane County, Washington———————————————————————————— Characteristics |  | | Report (issue) | | metamorphosed hydrothermal system at Pine Canyon. Piute County, Utah. U.S.A. [abs.]: Mineralogical Society (London)...mineralogy of the Cerrillos copper deposit, Santa Fe County, New Mexico: New Mexico Geological Society Guidebook...1988. Ag-Au-Te mineralization in the Ratagain complex, northwest Scotland: Transactions Institution of...a satellite intrusion of the Palabora igneous complex, South Africa: Economic Geology, v. 81, p. 143-155...for the tectonic development of the southeastern Colorado Plateau boundary: Journal of Geophysical Research |  | | Report (issue) | | Basement in Colorado GEOLOGIC A I, Rock Units of the Precambrian Basement in Colorado By OGDEN TWETO...TWETO GEOLOGY OF THE PRECAMBRIAN BASEMENT IN COLORADO U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1321-A...igneous rocks in outcrop and the buried basement in Colorado UNITED STATES GOVERNMENT PRINTING OFFICE...1912-1983 Rock units of the Precambrian basement in Colorado. (Geological Survey Professional Paper ; 1321-A)...Geology, Stratigraphic Pre-Cambrian. 2. Geology Colorado. QE653.T9 1986 551.7'1'09788 I. Title. For sale |  | | Journal (article/letter/editorial) | | 1 Ga and ~250 Ma cassiterite from the Bushveld Complex in South Africa and from the Southeast Asia Tin...veins at depth. Sample Jian-1. China, Chongyi County, Jiangxi Province. The Jiangxi W–Sn district is...Saudi-A. Kingdom of Saudi Arabia, Silsilah ring complex, quartz, topaz, cassiterite greisen. The greisen...Arabian Shield (du Bray, 1988). The Silsilah ring complex is part of an igneous suite, mostly composed of...style of the rocks that compose the Silsilah ring complex are similar to those of US other A-type plutons |  | | Report (volume) | | George G. The Metaline district, Pend Oreille County, Washington, [Chap.] 6 in Lead-zinc deposits in...fill of Red Light Bolson, southeastern Hudspeth County, Texas, in Geology of the southern Quitman Mountains...terraces along Maple River in northeastern Clinton County, Michigan, U.S.A. (their morphologic, genetic and...northwest quarter of Lemoine Township, AbitibiEast County [also French edition]: Quebec Dept. Nat. Resources...Iraq and of Antigo silt loam catena in 'Menominee County, Wisconsin [ abs.]: Dissert. Abs. Internat., Sec |  | | Book | | long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...CANADA BRITISH COLUMBIA Ice River complex. The Ice River complex is an intrusive body of alkaline igneous...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described...Lake Road occurrence, Faraday Township, Hastings County. In fall 1994, Dan and Shelley Lambert extracted |  | | Journal (issue) | | Most of the world’s molybdenum comes from this Colorado pit. The 12,250-ft. elevation doesn’t make the...for every mining requirement! — Dings s maximum iron rovide ectromagnet P e pole design for great Rectangu'ar...Wherever crushers must be protected against tramp iron, wherever magnetic separation can contribute to...detectors are all widely applied arresting tramp iron ahead of crushing equipment. for presence of ...engineers. Write today! KAISER COMPANY Eagle Mountain Mine, Calif. Primary crushed ore is fed to a belt |  | | Book | | Emplaced in the Upper Jurassic Qorveh Granitoid Complex (Majidaba and Kangareh), Kurdistan Province, Iran”)...Emplaced in the Upper Jurassic Qorveh Granitoid Complex (Majidabad and Kangareh), Kurdistan Province, Iran...deformed, late Archean Blake River Group megacaldera complex of North America with an original diameter of 80–90...prominent 932–929 Ma (Schärer et al. 1996) Rogaland complex. More recently, precise U-Pb dating has confirmed...dykes (Hellström et al. 2004) and the Rogaland complex (Schärer et al. 1996) are in black lettering the |
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