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Volume 53 (2022): Edition 1 (January 2022)

Volume 52 (2021): Edition 1 (January 2021)

Volume 51 (2020): Edition 1 (January 2020)

Volume 50 (2019): Edition 1-4 (December 2019)

Volume 49 (2018): Edition 1-4 (December 2018)

Volume 48 (2017): Edition 1-4 (December 2017)

Volume 47 (2016): Edition 1-4 (December 2016)

Volume 46 (2015): Edition 1-2 (June 2015)

Volume 45 (2014): Edition 3-4 (December 2014)

Volume 45 (2014): Edition 1-2 (June 2014)

Volume 44 (2013): Edition 3-4 (July 2013)

Volume 44 (2013): Edition 1-2 (June 2013)

Volume 43 (2012): Edition 3-4 (December 2012)

Volume 43 (2012): Edition 1-2 (March 2012)

Volume 42 (2011): Edition 4 (October 2011)

Volume 42 (2011): Edition 2-3 (September 2011)

Volume 42 (2011): Edition 1 (March 2011)

Volume 41 (2010): Edition 3-4 (December 2010)

Volume 41 (2010): Edition 1-2 (June 2010)

Volume 40 (2009): Edition 1-4 (December 2009)

Volume 39 (2008): Edition 3-4 (December 2008)

Volume 39 (2008): Edition 1-2 (June 2008)

Volume 38 (2007): Edition 2 (December 2007)

Volume 38 (2007): Edition 1 (June 2007)

Volume 37 (2006): Edition 2 (December 2006)

Volume 37 (2006): Edition 1 (June 2006)

Détails du magazine
Format
Magazine
eISSN
1899-8526
Première publication
05 Feb 2007
Période de publication
1 fois par an
Langues
Anglais

Chercher

Volume 50 (2019): Edition 1-4 (December 2019)

Détails du magazine
Format
Magazine
eISSN
1899-8526
Première publication
05 Feb 2007
Période de publication
1 fois par an
Langues
Anglais

Chercher

3 Articles
Accès libre

Synthesis and characterization of cadmium chlorapatite Cd5(PO4)3Cl

Publié en ligne: 03 Apr 2020
Pages: 3 - 12

Résumé

Abstract

One of the most effective methods for the immobilization of toxic metals involves the use of minerals from the apatite supergroup. The formation of cadmium chlorapatite may lead to successful entrapping of cadmium; thus, it is important to examine the solubility constant to determine the stability of cadmium in the the apatite structure. Cadmium chlorapatite was synthetized and characterized by X-ray diffraction, infrared spectroscopy, Raman spectroscopy, and scanning electron microscopy. The solubility constant (log) Ksp of cadmium chlorapatite was -65.58. The Gibbs free energy of formation of cadmium chlorapatite reached -3950.48 kJ mol−1. The solubility constant turned out to be low but was enough for cadmium chlorapatiteto be considered a very stable compound..

Mots clés

  • Apatite
  • Cadmium
  • Cadmium chloroapatite
  • Dissolution
  • Solubility constant
Accès libre

Lamprophyric rock locations in Greece

Publié en ligne: 03 Apr 2020
Pages: 13 - 33

Résumé

Abstract

Twenty-four areas with lamprophyric formations have been located through a bibliographic search in Macedonia, Thrace, the islands and Attica. Most lamprophyre types have been identified including rare “alkali minette”. In most localities the dikes/sills appear to be late mantle products associated with deep faulting following extensional activity in granitoids.

Mots clés

  • lamprophyric rocks
  • distribution
  • Greece
  • bibliography
Accès libre

Geochemistry, mineral chemistry and P-T evaluation of metasediments of Bahram-Gur complex, ES Sanandaj-Sirjan zone, Iran

Publié en ligne: 03 Apr 2020
Pages: 34 - 68

Résumé

Abstract

The Bahram-Gur area in the southeastern part of the Sanandaj – Sirjan metamorphic zone, contains metabasites and metasediments. The metasedimentary rocks are mainly garnet schists and garnet-staurolite schists that were metamorphosed under amphibolite facies conditions. The rocks consist of garnet ± staurolite, biotite, muscovite, chlorite and quartz. The geochemistry of the Bahram-Gur metasediments classifies them as quartziferous sedimentary rocks. The protoliths of the metasedimentary rocks were close to greywackes from an ensialic arc basin depositional setting, with a source comprising mostly mixture of acid and intermediate magmatic rocks in the upper continental crust. The metamorphic conditions of formation of the Bahram-Gur metasedimentary are investigated by geothermobarometric methods. The results show that the metasedimentary rocks formed at temperatures of 600-750°C and pressures of 5-7.5 kbar.

Mots clés

  • Bahram-Gur area
  • Sanandaj-Sirjan Zone
  • metamorphic conditions
  • metasediments
  • geothermobarometry
3 Articles
Accès libre

Synthesis and characterization of cadmium chlorapatite Cd5(PO4)3Cl

Publié en ligne: 03 Apr 2020
Pages: 3 - 12

Résumé

Abstract

One of the most effective methods for the immobilization of toxic metals involves the use of minerals from the apatite supergroup. The formation of cadmium chlorapatite may lead to successful entrapping of cadmium; thus, it is important to examine the solubility constant to determine the stability of cadmium in the the apatite structure. Cadmium chlorapatite was synthetized and characterized by X-ray diffraction, infrared spectroscopy, Raman spectroscopy, and scanning electron microscopy. The solubility constant (log) Ksp of cadmium chlorapatite was -65.58. The Gibbs free energy of formation of cadmium chlorapatite reached -3950.48 kJ mol−1. The solubility constant turned out to be low but was enough for cadmium chlorapatiteto be considered a very stable compound..

Mots clés

  • Apatite
  • Cadmium
  • Cadmium chloroapatite
  • Dissolution
  • Solubility constant
Accès libre

Lamprophyric rock locations in Greece

Publié en ligne: 03 Apr 2020
Pages: 13 - 33

Résumé

Abstract

Twenty-four areas with lamprophyric formations have been located through a bibliographic search in Macedonia, Thrace, the islands and Attica. Most lamprophyre types have been identified including rare “alkali minette”. In most localities the dikes/sills appear to be late mantle products associated with deep faulting following extensional activity in granitoids.

Mots clés

  • lamprophyric rocks
  • distribution
  • Greece
  • bibliography
Accès libre

Geochemistry, mineral chemistry and P-T evaluation of metasediments of Bahram-Gur complex, ES Sanandaj-Sirjan zone, Iran

Publié en ligne: 03 Apr 2020
Pages: 34 - 68

Résumé

Abstract

The Bahram-Gur area in the southeastern part of the Sanandaj – Sirjan metamorphic zone, contains metabasites and metasediments. The metasedimentary rocks are mainly garnet schists and garnet-staurolite schists that were metamorphosed under amphibolite facies conditions. The rocks consist of garnet ± staurolite, biotite, muscovite, chlorite and quartz. The geochemistry of the Bahram-Gur metasediments classifies them as quartziferous sedimentary rocks. The protoliths of the metasedimentary rocks were close to greywackes from an ensialic arc basin depositional setting, with a source comprising mostly mixture of acid and intermediate magmatic rocks in the upper continental crust. The metamorphic conditions of formation of the Bahram-Gur metasedimentary are investigated by geothermobarometric methods. The results show that the metasedimentary rocks formed at temperatures of 600-750°C and pressures of 5-7.5 kbar.

Mots clés

  • Bahram-Gur area
  • Sanandaj-Sirjan Zone
  • metamorphic conditions
  • metasediments
  • geothermobarometry

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