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Wednesday, July 29, 2020 | History

5 edition of Health related effects of phyllosilicates found in the catalog.

Health related effects of phyllosilicates

NATO Advanced Workshop on Health Related Effects of Phyllosilicates (1989 Paris, France)

Health related effects of phyllosilicates

by NATO Advanced Workshop on Health Related Effects of Phyllosilicates (1989 Paris, France)

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  • 23 Currently reading

Published by Springer-Verlag in Berlin, New York .
Written in English

    Subjects:
  • Phyllosilicates -- Toxicology -- Congresses.,
  • Lungs -- Dust diseases -- Congresses.

  • Edition Notes

    Statementedited by Jean Bignon.
    GenreCongresses.
    SeriesNATO ASI series. Series G, Ecological sciences ;, vol. 21, NATO ASI series., no. 21.
    ContributionsBignon, Jean.
    Classifications
    LC ClassificationsRA1231.P52 H43 1990
    The Physical Object
    Paginationxii, 447 p. :
    Number of Pages447
    ID Numbers
    Open LibraryOL1857690M
    ISBN 103540517650, 0387517650
    LC Control Number90009934

    The increased exposure to low grade ores has highlighted the importance of understanding phyllosilicate gangue mineralogy. These minerals exist as common gangue minerals and have been shown to. Phyllosilicates – (Silicate Sheets) (Si 2 O 5)2-Tetrahedral sheet (6-fold) Many members have a platy or flaky habit with one very prominent cleavageprominent cleavage. Minerals are generally soft, low specific gravity, maylow specific gravity, may even be flexible. Most are hydroxyl bearing.

      Finally, possible health effects of these elongate clay minerals are discussed. Send article to Kindle To send this article to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. This book contains 18 papers in camera-ready format, eight of which were presented at a symposium entitled 'Occurrences and genesis of sepiolite/palygorskite sediments' which formed part of the.

      The effects of such thermal alteration are remarkable in the IR spectra of the phyllosilicates, which show a decrease in intensity and broadening of the hydroxyl and hydration bands ( and μm) and flattening above the metal-OH absorption region (– μm). The pelletai phyllosilicates of the lower Riphean Ust’-Il’insk suite, consisting of glauconitic lM-mica with a varying proportion of 1M Al-mica, yield stratigraphically significant Rb-Sr and K.


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Health related effects of phyllosilicates by NATO Advanced Workshop on Health Related Effects of Phyllosilicates (1989 Paris, France) Download PDF EPUB FB2

Two previous NATO Workshops on "In Vitro Effects of Mineral Dusts on Cells", have been published in the NATO ASI Series ( and ). The present NATO-INSERM workshop has focused specifically on a group of silicates, named phyllosilicates because of their sheet structure, of which health related effects have been poorly and sporadically.

Health Related Effects of Phyllosilicates (Nato ASI Series (closed) / Nato ASI Subseries G: (closed)) (Nato ASI Subseries G: (21)): Medicine & Health Science Books @ NATO Advanced Workshop on Health Related Health related effects of phyllosilicates book of Phyllosilicates ( Paris, France).

Health related effects of phyllosilicates. Berlin ; New York: Springer-Verlag, © (DLC) (OCoLC) Material Type: Conference publication, Document, Internet resource: Document Type: Internet Resource, Computer File: All Authors.

NATO Advanced Workshop on Health Related Effects of Phyllosilicates ( Paris, France). Health related effects of phyllosilicates. Berlin ; New York: Springer-Verlag, © (OCoLC) Material Type: Conference publication: Document Type: Book: All Authors / Contributors: Jean Bignon. of this book is a mix of university colleagues practitioners part of the nato asi series book series volume 21 abstract as an introduction to other contributions dealing with the geology the industrial use health related effects of phyllosilicates berlin west springer nato asi series series g isbn 3 Part of the NATO ASI Series book series (volume 21) Abstract As an introduction to other contributions, dealing with the geology, the industrial use and the health effects of phyllosilicates, an outline of the mineralogy of these minerals is given in this paper.

French talc (talc from LUZENAC) is associated with various amounts of chlorites, small quantities of carbonates; there is no asbestos and quartz is below 3%. The clinic and radiologic features are. Cullinan P., McDonald J.C. () Respiratory Disease from Occupational Exposure to Non-Fibrous Phyllosilicates.

In: Bignon J. (eds) Health Related Effects of Phyllosilicates. NATO ASI Series (Series G: Ecological Sciences), vol Health Related Effects of Phyllosilicates pp | Cite as Geological Occurrence of Phyllosilicates. Application to Kaolinite, Talc, Sepiolite and Palygorskite Deposits.

Zhu, J. Njuguna, in Health and Environmental Safety of Nanomaterials, Introduction. Clay minerals (layered silicates) are a class of phyllosilicates, which can occur naturally as the result of chemical weathering of other silicate minerals (Bignon, ; Bergaya and Lagaly, ; Choy et al., ; Floody et al., ).

Phyllosilicate, formerly called disilicate, compound with a structure in which silicate tetrahedrons (each consisting of a central silicon atom surrounded by four oxygen atoms at the corners of a tetrahedron) are arranged in sheets.

Examples are talc and of the oxygen atoms of each tetrahedron are shared with other tetrahedrons, but no two tetrahedrons have more than one oxygen atom. Cullman P, McDonald JC: Respiratory disease from occupational exposure to non-fibrous phyllosilicates, in Big-lion J (ed): Health Related Effects of Phyllosilicates.

NATO ASI Series, vol G Berlin, Germany, Springer-Verlag,pp Phyllosilicate-rich fine-grained rims and matrices constitute 47–85% of CM chondrites and consist predominantly of serpentine-group minerals (McSween, a; Hewins et al., ).

CM chondrites were originally all assigned to petrologic type 2 (see discussion of Van Schmus and Wood, above).

Subsequent research suggested that petrologic type 3 is the most primitive (least evolved in. Health Related Effects of Phyllosilicates (NATO Asi Series: Series G: Ecological Sciences) by NATO Advanced Workshop on Health Related Effects of Phyllosilicates ( Paris, France) and Jean Bignon | Oct 1, In analyzing their magnetic and magnetically related properties we essentially followed the classification given by the Mineral Reference Manual (E.

Nickel, N. Nickols, Van Nostrand Reinhold, ). Individual chapters are dedicated to orthosilicates, sorosilicates, cyclosilicates, inosilicate, phyllosilicates and tectosilicates. Some CM and CI chondrites have been heated to temperatures sufficient to cause dehydration of phyllosilicates (Akai, ).Reflectance spectra of many asteroids suggest that metamorphosed carbonaceous chondrite material is common (Hiroi et al., ).Oxygen isotopic compositions of dehydrated CM and CI chondrites occupy two separate regions in the three-isotope graph (Figure 9).

Maps of phyllosilicates have been built using spectra in which the µm band depth exceeds 2%. The variation of the band depth depends on the degree of hydration, the grain size and the. Sluis-Cremer, G. K., and P. Hessel. "Palabora Vermiculite." In Health Related Effects of Phyllosilicates, pp.

Springer Berlin Heidelberg, Abstract: At Phalaborwa some km north-east of Johannesburg there is a remarkable geological phenomenon — the Loolekop volcanic pipe — of some 12 Km2 host to two large open pit mines. Health Effects of Mineral Dusts Article (PDF Available) in Clay Minerals 29(3) January with Reads How we measure 'reads'.

Most phyllosilicates contain hydroxyl ion, OH- with the OH located at the center of the 6 membered rings, as shownthe group becomes Si 2 O 5 (OH)When other cations are bonded to the SiO 4 sheets, they share the apical oxygens and the (OH) ions which bond to the other cations in octahedral coordination.

This forms a layer of cations, usually Fe +2, Mg +2, or Al +3, that occur. Copper-molybdenum grades of important mining deposits have progressively decayed, which is associated with high levels of clay minerals which affect froth flotation.

The depressing effect of clay minerals on copper sulfides was previously reported but there are no systematic studies on the effect on molybdenite flotation in seawater.

The objective of this work was to study the effect of.Histopathology (day 28) demonstrated dose-related interstitial inflammation associated with SiO2 exposure, an effect that was less severe with TiO2.

SiO2 doses of greater than or equal to 50 mg/kg. To ensure safer and more efficient unconventional oil/gas recovery and other energy-related subsurface operations, it is important to understand the effects of abundant Fe-bearing phyllosilicates on the degradation of phosphonates, which are applied to inhibit scale formation.

In this study, under subsurface relevant conditions (i.e., slightly oxic owing to oxygen-containing injection.