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  • 1
    Monograph available for loan
    Monograph available for loan
    Textband; T. 2. (1969)
    Associated volumes
    Details Availability
    Call number: 5798/2
    In: Optische Bestimmung der gesteinsbildenden Minerale
    Type of Medium: Monograph available for loan
    Pages: XII, 822 S. : Ill., graph. Darst.
    Edition: 2. Aufl.
    Language: German
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 2
    Monograph available for loan
    Monograph available for loan
    Bestimmungstabellen; Teil 1. (1982)
    Stuttgart : Schweizerbart
    Associated volumes
    Details Availability
    Call number: M 92.1295 ; M 92.1294 ; M 95.0246 ; M 92.1293 ; G 8210
    In: Optische Bestimmung der gesteinsbildenden Minerale
    Type of Medium: Monograph available for loan
    Pages: 188 S. : graph. Darst.
    Edition: 5. neu bearb. Aufl.
    ISBN: 3510651065
    Classification:
    Petrology, Petrography
    Language: German
    Location: Upper compact magazine
    Location: Upper compact magazine
    Location: Upper compact magazine
    Location: Upper compact magazine
    Location: Upper compact magazine
    Branch Library: GFZ Library
    Branch Library: GFZ Library
    Branch Library: GFZ Library
    Branch Library: GFZ Library
    Branch Library: GFZ Library
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  • 3
    Electronic Resource
    Electronic Resource
    Geochemie des Apatits in Tiefengesteinen am Beispiel des Odenwaldes (1962)
    Springer
    Contributions to mineralogy and petrology 8 (1962), S. 354-392 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Summary The apatite in various igneous rocks (from quartzmonzonitic to gabbroic composition) in one and the same area of differentiation was geochemically examined. The samples were taken from 24 different localities in the Odenwald (Germany) and the thin sections were determined petrographically with a point counter. 25 kg of each sample were dressed and the apatite separated from the heavy mineral concentrates. The pure apatite was analysed quantitative chemically. The variable components of the apatite are represented diagrammatically as functions of the rockchemistry, the physical- and the X-ray constants and their relationships are discussed. The following relations were established: The F-content of magmatic apatites increases in the acidic rocks without showing a stringent lawfulness to the rockchemistry. F remains in all apatites, compared with Cl, OR and 0, alwavs in predominance. With increase in the content of F the refractive index, as well as the lattice constants of the apatites, decrease. The Cl-content of magmatic apatites increases towards the basic rocks, but here too it remains much less than the amount of F. Further more all other statements refering to F can be applied to Cl, but with opposite meaning. A comparison of the chemical analyses of apatites from the newer literature and these of the author reveals in all probability that there is only a limited miscibility between F- and Cl-apatites. The limit being 20 atom per cent Cl. The relation of F : Cl as 1:1 in some apatites might be attributed to an orderly arranged state of the F- and Cl-apatites. OH behaves in a similar manner as Cl, except that the results have wider dispersion effect. According to the chemical equivalence calculations there is generally a small excess of cations. This means that Oxygen must fill up free halogen-places in the lattice. The content of SiO2 of the apatites shows an increasing tendency towards in the basic rocks and the content of P2O5 a decreasing one. The contents of the rare earths of magmatic apatites increase in acidic rocks and only those ones with even numbers (with the exception of La) appear. Only apatites from rocks with metamorphic characteristics had an amount of SO3. By means of a comparison between the exploit of apatite and P2O5-contents of the rocks can be supposed with probability that the principal quantity of the P2O5 in the magmatic rocks is not bound to the apatite but to the silicates. This supposition will shortly be further examined. The relative increasing of the intensity of the line (0002) and (0004) in the X-ray-graphs (X-ray-goniometer) in the F-rich apatites suggests a better (0001)-cleavage as in the Cl-rich apatites. This observation can be explained easily with the different structures of the F- and the Cl-apatites.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01172884
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  • 4
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    Geochemie des Apatits in Tiefengesteinen am Beispiel des Odenwaldes (1962)
    Springer
    Details
    Publication Date: 1962-01-01
    Print ISSN: 0366-1369
    Electronic ISSN: 1432-0967
    Topics: Geosciences
    Published by Springer
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