Last edited by Kagashicage
Tuesday, July 28, 2020 | History

3 edition of Bedded Precambrian iron deposits of the Tobacco Root Mountains, southwestern Montana found in the catalog.

Bedded Precambrian iron deposits of the Tobacco Root Mountains, southwestern Montana

Harold Lloyd James

Bedded Precambrian iron deposits of the Tobacco Root Mountains, southwestern Montana

by Harold Lloyd James

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  • 2 Currently reading

Published by U.S.G.P.O., For sale by the Supt. of Docs, G.P.O. in Washington .
Written in English

    Places:
  • Montana,
  • Tobacco Root Mountains.
    • Subjects:
    • Iron ores -- Montana -- Tobacco Root Mountains.,
    • Geology, Stratigraphic -- Precambrian.

    • Edition Notes

      Statementby Harold L. James.
      SeriesGeological Survey professional paper ;, 1187
      Classifications
      LC ClassificationsTN403.M9 J35
      The Physical Object
      Paginationiii, 16 p. :
      Number of Pages16
      ID Numbers
      Open LibraryOL3922724M
      LC Control Number81607027

      The magnesium-iron-manganese subgroup amphiboles are defined with Mg, Fe or Mn as the dominant element in the B position, or B (Ca + ΣM 2+)/ΣB ≥ , B ΣM 2+ /ΣB > B Ca/ΣB, where M is Mg, Fe and Mn. This subgroup contains both monoclinic (cummingtonite and grunerite groups) and orthorhombic (anthophyllite and gedrite groups) root name groups. Stratigraphy and diagenetic history of the lower part of the Triassic Chitistone Limestone, Alaska: geologic relations of Kennecott-type copper deposits, Wrangell Mountains, Alaska / .

      X Tom Clancy's Net Force, Ingram Book Group Book That Dripped Blood, Michael Dahl Molecular and Chemical Characterization of Membrane Receptors, J.C. Venter, L.C. Harrison. The dominantly used drilling mud is sepiolite originating from southwestern Nevada, USA. This sepiolite contains abundant zircon crystals with U‐Pb ages ranging from to Ma and continental trace element, δ 18 O, and εHf isotopic compositions.

      The cave also has apparent manganese-rich deposits on its floors. Manganese is common in old (4 to 20 million years old), deeply-formed caves of the front ranges of the Rocky Mountains, such as Jewel and Lechuguilla Cave in New Mexico. But in Coyote Cave the deposits are inter-bedded with clays, a novel type of deposit. The DSB (3°20′-5°N and 9°°30′E) is located at the eastern extent of the Gulf of Guinea, near Douala bay ().It occupies extensive onshore and offshore areas of about km DSB is limited to the south by the northern border of the Kribi-Campo sub-basin, to the NW by the Cameroon Volcanic Line (CVL), and to the east by the Pan-African migmatitic and gneissic Author: Gabriel Ngueutchoua, John Takem Eyong, Armel Zacharie Ekoa Bessa, Zita Bih Azanji Agheenwi, Alain Em.


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Bedded Precambrian iron deposits of the Tobacco Root Mountains, southwestern Montana by Harold Lloyd James Download PDF EPUB FB2

Bedded Precambrian iron deposits of the Tobacco Root Mountains, southwestern Montana (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: H L James; Geological Survey (U.S.).

Bedded Precambrian iron deposits of the Tobacco Root Mountains, southwestern Montana (DLC) (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource, Computer File: All Authors / Contributors: H L James; Geological Survey (U.S.).

Resource potential of bedded iron deposits in the Tobacco Root Mountains, Montana. U.S. Geological Survey Professional Paper 7 pp. Reflections on problems of time subdivisions and correlation. Precambrian Res. Bedded Precambrian iron deposits of the Tobacco Root Mountains, southwestern Montana.

Bedded Precambrian iron deposits of the Tobacco Root Mountains, southwestern Montana / by: James, H. Published: () Revised nomenclature and stratigraphic relationships of the Fredericksburg complex and Quantico formation of the Virginia Piedmont / by: Pavlides, Louis, Published: ().

@article{osti_, title = {Petrography and trace-element geochemistry of the Dillon Quartzofeldspathic Gneiss, Ruby Range, southwestern Montana}, author = {D'Amato, E J and Dahl, P S and Talnagi, J}, abstractNote = {The Ruby Range is a Mid- to Late-Archean terrane dominated by quartzofeldspathic gneisses overlain by metasedimentary rocks that underwent.

USGS Professional Papers 5 - Geologic and Mining Related, Numbers - PP / James, H. / BEDDED PRECAMBRIAN IRON DEPOSITS OF THE TOBACCO ROOT MOUNTAINS, SOUTHWESTERN MONTANA,pb, 16 pages, 1.

MS Book and Mineral Company Montana Geology and Mining History Catalog I - Federal Publications H. / BEDDED PRECAMBRIAN IRON DEPOSITS OF THE TOBACCO ROOT MOUNTAINS, SOUTHWESTERN MONTANA,pb, 16 pages, 1 plate (in pocket), 6 figs., 2 tables, $ 10 AND ASSOCIATED ROCKS IN THE MIDDLE PROTEROZOIC BELT.

U-Pb analyses of zircons from gneisses, anatectic leucosome, metasedimentary rocks, and a younger (metamorphosed) mafic dike from the Tobacco Root Mountains of. Bedded Precambrian Iron Deposits Of The Tobacco Root Mountains Southwestern Montana Author: Harold Lloyd James ISBN: LCCN Genre: Geology, Stratigraphic File Size: 55 MB Format: PDF, ePub, Docs.

L.J. Geochemistry of quartzofeldspathic gneisses and metamorphic mafic rocks of the Indian Creek and Pony-Middle Mountain Metamorphic Suites, Tobacco Root Mountains, Montana. In Precambrian Geology of the Tobacco Root Mountains, Montana. Edited by J.B. Brady, H.R. Burger, J.T. Cheney, and T.A.

Harms. Geological Society of America, Special Cited by: 5. The talc deposits mined in southwestern Montana produce some of the purest talc in the world (Van Gosen et al., ).Many of the Montana talc products are of the compact or microcrystalline variety and are in great demand for manufacturing paper, paints and coatings, plastics, rubber, ceramics, and agricultural products.

The Barrick Golden Sunlight Mine (GSM) in Whitehall, Montana, is an industry leader in safe, responsible resource extraction. With more than 3 million ounces of gold poured sinceand current proven and probable reserves ofounces of gold, GSM is the largest gold producer in Montana.

O'Neill, J.M.,Early Proterozoic geology of the Highland Mountains, southwestern Montana, and fi eld guide to the basement rocks that compose the Highland Mountain gneiss dome, in. Pyroxenes from other areas where BIF are developed have a low content of impurities except for the manganiferous varieties (up to % MnO) found in the Tobacco Root Mountains and in the Carter Creek area of the Ruby Mountains, Montana (Immega and Klein, ); the iron content of these pyroxenes is within + Olivine is relatively rare.

Tobacco Root Geological Society, fieldtrip leader Reviewer of National Research Council’s “Mineral Resources and the Environment” () Participant, People to People International, October Mining Delegation to the People's Republic of China, sponsored by the Northwest Mining Association.

*LEWIS, S. E., and R. BERG (eds.),Precambrian and Mesozoic Plate Margins: Montana, Idaho and Wyoming, with Field Guides for the 8th International Conference on Basement Tectonics (August ): Montana Bureau of. There has been an explosion of stable isotope data in the literature over the past few years.

Establishment of routine analytical techniques and advances in mass spectrometry have made entrance into this field far less formidable than in former years. Today there are about laboratories throughout the world where research in stable isotope geochemistry is conducted.

Clark County, in southern Idaho, holds the secret to a large amount of buried gold. The man responsible for burying this fortune of $50, was George Ives, an early-day desperado and ex-sheriff.

George found it more profitable to join the notorious Plummer Gang that operated in Montana and Idaho than to work as a poor but honest sheriff in Boise. The cluster is still em-bedded in a cloud of cold gas and interstellar dust, material left over from its formation.

Photo Researchers, Inc. Repro-duced by permission. cloud of gas and dust is transformed into a brilliant star with a surface temperature anywhere from 3, 50,K (4,–90,°F; 2,–50,°C).

the San Juan Mountains in southwestern Colorado. From the 's tomines in the primitive area and a border zone of iy2 miles wide around it yielded about $ million worth of metals, mostly gold, silver, copper, lead, and zinc. About 4, patented claims and more than unpatented claims are located in or nearFile Size: 13MB.

The Blues, a coffee table book on geology of the The Blue Mountains in Northeastern Oregon by written Bob Carson, art Directed by Laura Wahl. This is a truncated (lookbook) version for.Full text of "The ore deposits of the United States and Canada" See other formats.Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online.

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