Fingerprint of magma mixture in the leucogranites: Spectroscopic and petrochemical approach, Kalebalta-Central Anatolia, Türkiye

Leucogranites of Kalebalta in Central Anatolia are composed of plagioclase, quartz, orthoclase, and biotite and contains mafic microgranular enclaves (MME) in sizes ranging from few cm to 70 cm. In the total alkali-silica diagram, they fall typically in the granite field and show a calc-alkaline nat...

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Main Authors: Güllü Bahattin, Akşit Asuman
Format: Article
Language:English
Published: De Gruyter 2023-10-01
Series:Open Geosciences
Subjects:
Online Access:https://doi.org/10.1515/geo-2022-0548
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author Güllü Bahattin
Akşit Asuman
author_facet Güllü Bahattin
Akşit Asuman
author_sort Güllü Bahattin
collection DOAJ
description Leucogranites of Kalebalta in Central Anatolia are composed of plagioclase, quartz, orthoclase, and biotite and contains mafic microgranular enclaves (MME) in sizes ranging from few cm to 70 cm. In the total alkali-silica diagram, they fall typically in the granite field and show a calc-alkaline nature in the alkalis-iron-magnesium diagram whereas enclaves are Medium K series calc-alkaline, which represents the transition from tholeiitic to calc-alkaline. Leucogranites which have A/CNK(mol%) > 1 are strong peraluminous and seen as the products of magma derived from a metasedimentary source. Signs of magma mixing expressing the mantle inputs are also observed in many bivariation diagrams. Zircon and apatite saturation temperatures calculated on the basis of whole rock chemistry are 744–829°C for leucogranites and 761–832°C for their enclaves. According to the Raman spectra, biotite and plagioclase minerals in leucogranites and their enclaves show similar Raman spectrums. The biotite minerals have Mg–O and/or Fe–O translational (transformation) bonds between 182 and 552 cm−1, Si–O–Si bending between 552 and 1,100 cm−1 and Si–O–Si vibrational bonds between 1,100 and 1,200 cm−1. The results of this study suggest that the leucogranites and enclaves are most probably derived from different magmas. In addition, according to geochemical and spectroscopic data, they may also have fractional crystallization, which is effective after the mixing process.
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spelling doaj.art-1f128b5905254f40b2bffef35eeab08a2023-10-12T14:06:43ZengDe GruyterOpen Geosciences2391-54472023-10-0115119233010.1515/geo-2022-0548Fingerprint of magma mixture in the leucogranites: Spectroscopic and petrochemical approach, Kalebalta-Central Anatolia, TürkiyeGüllü Bahattin0Akşit Asuman1Department of Geological Engineering, Aksaray University, Aksaray, 68100, TurkeyGraduate School of Natural and Applied Sciences, Aksaray University, Aksaray, 68100, TurkeyLeucogranites of Kalebalta in Central Anatolia are composed of plagioclase, quartz, orthoclase, and biotite and contains mafic microgranular enclaves (MME) in sizes ranging from few cm to 70 cm. In the total alkali-silica diagram, they fall typically in the granite field and show a calc-alkaline nature in the alkalis-iron-magnesium diagram whereas enclaves are Medium K series calc-alkaline, which represents the transition from tholeiitic to calc-alkaline. Leucogranites which have A/CNK(mol%) > 1 are strong peraluminous and seen as the products of magma derived from a metasedimentary source. Signs of magma mixing expressing the mantle inputs are also observed in many bivariation diagrams. Zircon and apatite saturation temperatures calculated on the basis of whole rock chemistry are 744–829°C for leucogranites and 761–832°C for their enclaves. According to the Raman spectra, biotite and plagioclase minerals in leucogranites and their enclaves show similar Raman spectrums. The biotite minerals have Mg–O and/or Fe–O translational (transformation) bonds between 182 and 552 cm−1, Si–O–Si bending between 552 and 1,100 cm−1 and Si–O–Si vibrational bonds between 1,100 and 1,200 cm−1. The results of this study suggest that the leucogranites and enclaves are most probably derived from different magmas. In addition, according to geochemical and spectroscopic data, they may also have fractional crystallization, which is effective after the mixing process.https://doi.org/10.1515/geo-2022-0548leucogranitesmafic microgranular enclavemantle inputs
spellingShingle Güllü Bahattin
Akşit Asuman
Fingerprint of magma mixture in the leucogranites: Spectroscopic and petrochemical approach, Kalebalta-Central Anatolia, Türkiye
Open Geosciences
leucogranites
mafic microgranular enclave
mantle inputs
title Fingerprint of magma mixture in the leucogranites: Spectroscopic and petrochemical approach, Kalebalta-Central Anatolia, Türkiye
title_full Fingerprint of magma mixture in the leucogranites: Spectroscopic and petrochemical approach, Kalebalta-Central Anatolia, Türkiye
title_fullStr Fingerprint of magma mixture in the leucogranites: Spectroscopic and petrochemical approach, Kalebalta-Central Anatolia, Türkiye
title_full_unstemmed Fingerprint of magma mixture in the leucogranites: Spectroscopic and petrochemical approach, Kalebalta-Central Anatolia, Türkiye
title_short Fingerprint of magma mixture in the leucogranites: Spectroscopic and petrochemical approach, Kalebalta-Central Anatolia, Türkiye
title_sort fingerprint of magma mixture in the leucogranites spectroscopic and petrochemical approach kalebalta central anatolia turkiye
topic leucogranites
mafic microgranular enclave
mantle inputs
url https://doi.org/10.1515/geo-2022-0548
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