Výsledky vyhledávání - "Angelika Kalt"

Crystallization and Breakdown of Metasomatic Phases in Graphite-bearing Peridotite Xenoliths from Marsabit (Kenya)

Autor: Thomas Pettke, Angelika Kalt, Benjamin Kaeser

Publikováno v: Kaeser, Benjamin; Kalt, Angelika; Pettke, Thomas (2007). Crystallisation and breakdown of metasomatic phases in graphite-bearing peridotite xenoliths from Marsabit (Kenya). Journal of petrology, 48(9), pp. 1725-1760. Oxford University Press 10.1093/petrology/egm036

Mantle-derived xenoliths from the Marsabit shield volcano (eastern flank of the Kenya rift) include porphyroclastic spinel peridotites characterized by variable styles of metasomatism. The petrography of the xenoliths indicates a transition from prim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::121126043071b077a8172d29fa252916
http://doc.rero.ch/record/293689/files/egm036.pdf

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Implications of the serpentine phase transition on the behaviour of beryllium and lithium–boron of subducted ultramafic rocks

Autor: Othmar Müntener, Angelika Kalt, Flurin Vils, Thomas Ludwig

Publikováno v: Geochimica et Cosmochimica Acta. 75:1249-1271

The Totalp–Platta–Malenco ophiolites in the Eastern Central Alps offer a unique opportunity to study the behaviour of Li, Be and B in ultramafic rocks in response to serpentinization and to progressive Alpine metamorphism. These units represent t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e67220ae4030e24e15c3a2aff5f7d957
https://doi.org/10.1016/j.gca.2010.12.007

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Major-element and Li, Be compositional evolution of tourmaline in an S-type granite-pegmatite system and its country rocks: an example from Ikaria, Aegean Sea, Greece

Autor: Hans-Peter Meyer, Thomas Ludwig, Horst R. Marschall, Angelika Kalt, Dominik C. Hezel

Publikováno v: The Canadian Mineralogist. 49:321-340

The chemical evolution of tourmaline in a granite – pegmatite – hydrothermal system and its metamorphic country-rock on the island of Ikaria, in Greece, has been investigated to elucidate the range of compositions generated from a single intrusiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b17ff87b2d1f5903a8808683ea72da3e
https://doi.org/10.3749/canmin.49.1.321

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Detrital, metamorphic and metasomatic tourmaline in high-pressure metasediments from Syros (Greece): intra-grain boron isotope patterns determined by secondary-ion mass spectrometry

Autor: Horst R. Marschall, Rainer Altherr, Angelika Kalt, Thomas Ludwig

Publikováno v: Contributions to Mineralogy and Petrology. 155:703-717

The boron isotopic composition of zoned tourmaline in two metasediments from the island of Syros, determined by secondary-ion mass spectrometry (SIMS), reflects the sedimentary and metamorphic record of the rocks. Tourmaline from a silicate-bearing m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::daea2b9ecb388ceb4d4e6a8937120f93
https://doi.org/10.1007/s00410-007-0266-9

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Evolution of the Lithospheric Mantle beneath the Marsabit Volcanic Field (Northern Kenya): Constraints from Textural, P–T and Geochemical Studies on Xenoliths

Autor: Angelika Kalt, Benjamin Kaeser, Thomas Pettke

Publikováno v: Journal of Petrology, 47 (11)

Journal of Petrology, 47 (11)
ISSN:0022-3530
ISSN:1460-2415

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34dfe23547ed484302b831ad5fa9ff1e
https://doi.org/10.1093/petrology/egl040

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Aluminous granulites from the Pulur complex, NE Turkey: a case of partial melting, efficient melt extraction and crystallisation

Autor: Olaf Werner, Rainer Altherr, Gültekin Topuz, Winfried H. Schwarz, Angelika Kalt, Muharrem Satir

Publikováno v: Lithos. 72:183-207

In the Pulur complex, NE Turkey, a heterogeneous rock sequence ranging from quartz-rich mesocratic gneisses to silica- and alkali-deficient, Fe-, Mg- and Al-rich melanocratic rocks is characterized by granulite-facies assemblages involving garnet, co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5338770200322d04b8a9da48a4281b1e
https://doi.org/10.1016/j.lithos.2003.10.002

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Reexamination of olenite from the type locality: detection of boron in tetrahedral coordination

Autor: John M. Hughes, Werner Schreyer, Angelika Kalt, Heinz-Jürgen Bernhardt, Andreas Ertl, Stefan Prowatke

Publikováno v: European Journal of Mineralogy. 14:935-942

Recent discoveries have demonstrated that some synthetic and natural olenite tourmalines contain less than the putative Si 6.00 p.f.u. , with the deficiencies in the tetrahedral sites being filled by excess boron (above B 3.00 p.f.u. ), existing as [

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f464418093505eeae5224ec32a884fbc
https://doi.org/10.1127/0935-1221/2002/0014-0935

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