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Monday, July 27, 2020 | History

2 edition of Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range, Liberia found in the catalog.

Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range, Liberia

Richard W. White

Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range, Liberia

by Richard W. White

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  • 7 Currently reading

Published by U.S. Govt. Print. Off. in Washington .
Written in English

    Places:
  • Liberia.
    • Subjects:
    • Metamorphism (Geology),
    • Petrology -- Liberia.

    • Edition Notes

      Bibliography: p. 49-50.

      Statementby Richard W. White ; prepared in cooperation with the Liberian Geological Survey, Ministry of Lands and Mines, under the auspices of the Government of Liberia and the Agency for International Development, U.S. Department of State.
      SeriesGeological Survey bulletin ; 1302, Geological Survey bulletin ;, 1302.
      ContributionsLiberian Geological Survey.
      Classifications
      LC ClassificationsQE75 .B9 no. 1302
      The Physical Object
      Paginationiv, 50 p. :
      Number of Pages50
      ID Numbers
      Open LibraryOL5522294M
      LC Control Number73600266

        Exploitation of low-grade iron ore would be quite unique in a South African context as South Africa is well endowed with high-grade iron ore resources. Low-grade iron ore, defined as containing between 20 and 47% iron, is thought to be the primary iron-bearing lithology from which most high-grade ore deposits formed, through different processes of by: 4. The Greenstone belts of Karnataka are enriched in BIFs in Dharwar craton, where Iron formations are confined to the basin shelf, clearly separated from the deeper-water iron formation that.


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Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range, Liberia by Richard W. White Download PDF EPUB FB2

Get this from a library. Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range, Liberia. [Richard W White; Geological Survey (U.S.); Liberian Geological Survey.; Liberia. Ministry of Lands and Mines.; United States. Agency for International Development.] -- "Prepared in cooperation with the Liberian Geological Survey, Ministry of Lands and Mines, under the.

Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range, Liberia Bulletin By: Richard W.

White. Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range, Liberia () The Publications Warehouse does not have links to digital versions of this publication at this time. Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range, Liberia (Geological Survey bulletin ; ) [White, Richard W] on *FREE* shipping on qualifying offers.

Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range, Liberia (Geological Survey bulletin ; ). Buy Progressive metamorphism of iron-formation and associated Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range in the Wologizi Range, Liberia (Geological Survey bulletin ; ) by White, Richard W (ISBN:) from Amazon's Book Store.

Everyday low prices and free delivery on eligible : Richard W White. Author of Rude Awakenings, Effect of mass flow on stack eductor performance, Stratigraphy and structure of basins on the coast of Liberia, Geologic reconnaissance in western Liberia, Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range, Liberia.

Author: Edna M. Skewes Editor: ISBN: Size: 10,53 MB Format: PDF, ePub Read: Contact metamorphism of the rocks in the Pend Oreille district, northern Idaho / by: Gillson, Joseph L. Published: () by: Gillson, Joseph L.

Published: (). Contact metamorphism of the rocks in the Pend Oreille district, northern Idaho / by: Gillson, Joseph L. Published: () Metamorphism in the Riggins region, western Idaho / by: Hamilton, Warren Bell, Published: ().

Buy Rude Awakenings by Richard W White online at Alibris. We have new and used copies available, in 1 editions - starting at $ Shop now. quartzite, and iron formation; subdivision of the basement is beyond the scope of this paper.

Outcrops of the crystalline rocks are sparse, but nevertheless are more numerous than those of the sedimentary rocks.

Mafic rocks form more resist ant. outcrops than felsic rocks, which may be weathered to depths as great as 30 by: 3. 7 5. 9 18 15 20 21 34 33 28 31 97 23 46 37 In their recent paper on the metamorphism of iron-formation at the base of the Stillwater com-plex, Vaniman et al.

() argue that the oxygen fugacity of the iron-formation was controlled by fluids moving out from the Stillwater intrusion. Furthermore, because of this effect, which they say is also present around the Duluth gabbro (c/. Sim.

Rocks derived by the metamorphism of sedimentary rocks include argillite, slate, phyllite, quartz-mica schist, metagraywacke, metaconglomerate, quartzite, limestone, marble, and calc-sil-icate.

Quartzofeldspathic or mafic gneiss can be derived from either sedimentary or igneous protoliths. Wall rocks (host rocks) typically associated with silici. In the Isua Greenstone Belt ( Ga), Greenland, δ34S in sulfide minerals from sedimentary sequences range from ‰ to +‰.

δ13Credmeasured in BIFs, turbidites and conglomerates vary Author: Hugh Rollinson. difÞ cult. The general lack of metamorphism and deformation of extensive BIFs of the Hamersley Range of Western Australia and the Transvaal Supergroup of South Africa allow for much better evaluations of original basinal settings.

Most Archean iron-formatio ns show Þ ne laminations and/or microbanding. The lack of spatially and temporally well-constrained high-pressure, low-temperature metamorphism continues, however, to cast doubt on the relevance of subduction-driven tectonics during the.

Radiometric dating and temperature history of banded iron formation–associated hematite, Gogebic iron range, Michigan, USA November Geology 43(12):G Skarn is present in both iron formation and in the ultramafic to mafic volcanic rocks, but gold mineralization is usually of subeconomic grade in the latter (Mueller ).

Even in the iron formation, the distribution of gold is not homogeneous because high-grade skarns are localized near contacts with metavolcanic rocks. Precambrian Research, 21 () 55 Elsevier Science Publishers B.V., Amsterdam -- Printed in The Netherlands UPPER PROTEROZOIC SCHIST BELTS IN THE NIGERIAN SECTOR OF THE PAN-AFRICAN PROVINCE OF WEST AFRICA D.C.

TURNER Geology Department, School of Mines, University of Zambia, PO BoxLusaka (Zambia) (Received June 2, ; revision accepted Cited by:.

O. The remaining rhyolite and rhyodacite rocks from Albernoa have melt inclusions with a composition similar to those of their hosts.

The high-silica melt inclusions found in the Neves Corvo samples are depleted in Cu and have low Sn (12 ppm Sn). Sn concentrations are .This banner text can have markup.

web; books; video; audio; software; images; Toggle navigation. This paper reports on different styles of gold mineralization observed in Archean gold deposits hosted by Algoma-type Banded Iron-Formations (BIF) in southern Africa.

Genetic aspects of various occurrences are discussed in the context of mineralogical as well as geochemical data of BIFs from the greenstone terranes of the Zimbabwe and Kaapvaal by: