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| Titel |
Petrochemical Characteristics of the Felsic Veins within the Kaman Metamorphic Rocks: Central Anatolia, Turkiye |
| VerfasserIn |
C. O. Kilic, Y. K. Kadioglu |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250068305
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| Zusammenfassung |
| The basement metamorphic rocks which outcrops in the vicinity of Kaman-Kirsehir, in Central Anatolia are composed of gneiss, biotite schist, amphibole schist, quartzite intercalated with amphibolite lenses in the región. This metamorphic rocks are cut by felsic veins. Felsic vein rocks are mainly composed of orthoclase, quartz, plagioclase, biotite and pyroxene minerals with accessory titanite and opaque minerals. Felsic vein rocks have holocrystalline texture in general and composed of mega crystalline orthoclase, quartz and mostly euhedral mafic minerals. The felsic veins are quartz syenite in composition. They are characterised by the lack of mafic magmatic enclaves. Clay formation, chloritization and opasitization with minor amount of uralitization are the main alteration part of the unit.
The felsic veins which cut the Kaman Metamorphic rocks have SiO2 % concentration vary between 57.22-70.9 %, Na2O% concentration between 1.9-2.63% and K2O% concentration between 6.34 - 9.01%. Felsic veins are enriched in LIL (large ion lithophile) elements compared to HFS (high field strength) elements. Obtained geochemical and petrographical datas suggest that the felsic veins are genetically related with Central Anatolia alkalen magmatic rocks and they may belong to the alkalen magmatic rocks which have excess crustal contamination. |
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