Kalt, Angelika

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Métadonnées seulement
Aluminous granulites from the Pulur complex, NE Turkey : a case of partial melting, efficient melt extraction and crystallisation
(2004)
Topuz, Gültekin
;
Altherr, Rainer
;
Kalt, Angelika
;
Satır, Muharrem
;
Werner, Olaf
;
Schwarz, Winfried H.
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, cordierite, sillimanite, ilmenite, ±spinel, ±plagioclase, ±quartz, ±biotite, ±corundum, rutile and monazite. Textural evidence for partial melting in the aluminous granulites, particularly leucosomes, is largely absent or strongly obliterated by a late-stage hydrothermal overprint. However, inclusion relations, high peak P–T conditions, the refractory modes, bulk and biotite compositions of the melanocratic rocks strongly support a model of partial melting. The melt was almost completely removed from the melanocratic rocks and crystallised within the adjacent mesocratic gneisses which are silica-rich, bear evidence of former feldspar and show a large range in major element concentrations as well as a negative correlation of most elements with SiO₂. Peak conditions are estimated to be ≥800 °C and 0.7–0.8 GPa. Subsequent near-isothermal decompression to ~0.4–0.5 GPa at 800–730 °C is suggested by the formation of cordierite coronas and cordierite–spinel symplectites around garnet and in the matrix. Sm–Nd, Rb–Sr and ₄₀Ar/₃₉Ar isotope data indicate peak conditions at ~330 Ma and cooling below 300 °C at ~310 Ma.
Métadonnées seulement
P-T Evolution of a Variscan Lower-Crustal Segment: a Study of Granulites from the Schwarzwald, Germany
(2003)
Marschall, Horst R
;
Kalt, Angelika
;
Hanel, Michael
Métadonnées seulement
Complete solid solution between magnesian schorl and lithian excess-boron olenite in a pegmatite from the Koralpe (eastern Alps, Austria)
(2001)
Kalt, Angelika
;
Schreyer, Werner
;
Ludwig, Thomas
;
Prowatke, Stefan
;
Bernhardt, Heinz-Jürgen
;
Ertl, Andreas
Métadonnées seulement
Time calibration of a PT path from a Variscan high-temperature low-pressure metamorphic complex (Bayerische Wald, Germany), and the detection of inherited monazite
(2000)
Kalt, Angelika
;
Corfu, Fernando
;
Wijbrans, Jan R
Métadonnées seulement
Metamorphic evolution of cordierite-bearing migmatites from the Bayerische Wald (Variscan Belt, Germany)
(1999)
Kalt, Angelika
;
Berger, Alfons
;
Blumel, Peter
Métadonnées seulement
Contact metamorphism in pelitic rocks on the island of Kos (Greece, Eastern Aegean Sea): a test for the Na-in-cordierite thermometer
(1998)
Kalt, Angelika
;
Altherr, Rainer
;
Ludwig, Thomas
Métadonnées seulement
Nd, Sr and Pb isotopic evidence for diverse mantle sources of East African carbonatites
(1997)
Kalt, Angelika
;
Hegner, E
;
Satir, Muharrem

Kalt, Angelika

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