Petrogenetic Characteristic of Mamasun (Aksaray) Gabbroids

Bahattin Güllü; Mustafa Yıldız

doi:10.17780/ksujes.07312

EN TR

Petrogenetic Characteristic of Mamasun (Aksaray) Gabbroids

Abstract

The research area is located at the southern part of Ağaçören Intrusive Suite at the North East of Aksaray in Central Anatolian Crystalline Complex. Field and petrology studies show that the lithology of the area is mainly composed of two main units which are gabbro and diorite and associated rocks microgabbroporphyry, microdiorite, microdioriteporphyry vein rocks and diabase composition are distinguished. Generally, gabbros have holocrystalline and cumulus texture. The plagioclases (labradorite) + hornblende + augite ± quartz ± epidote ± calcite ± titanite and opaque minerals form the compositions of the Mamasun gabbroid, which are changing from pyroxene-hornblende gabbro to diorite in compositions. The MORB normalized elemental patterns of the gabbroid and mafic dykes reveal enrichment in LIL element and depletion in HFS elements. There are a clear similarity between the major oxide, trace and rare earth element contents of the gabbroids (SiO₂ %49.88, Na₂O %1.59, CaO %11.51, La 0.9 ppm and Sm/Nb ratio 1.31) and Oceanic Crust contents (SiO₂ %49.5, Na₂O %2.8, CaO %11.3, La 3.7 and Sm/Nb ppm ratio 0.33).

The Chondrite normalized REE Spider diagram reflects fractional crystallization process similar to R1-R2 diagram of Mamasun Gabbroids. The chondrite normalized REE diagrams, except for positive Eu anomalies in pyroxene-hornblende gabbros, show that nearly horizontal patterns which significate that upper mantle source similar to depleted MORB.

Keywords

Geological Engineering

References

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English

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Bahattin Güllü

Mustafa Yıldız

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August 17, 2012

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March 22, 2012

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Year 1970 Volume: 15 Number: 1

DOI

https://doi.org/10.17780/ksujes.07312

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https://izlik.org/JA47WG86EX

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APA

Güllü, B., & Yıldız, M. (2012). Petrogenetic Characteristic of Mamasun (Aksaray) Gabbroids. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 15(1), 28-42. https://doi.org/10.17780/ksujes.07312

Petrogenetic Characteristic of Mamasun (Aksaray) Gabbroids

Petrogenetic Characteristic of Mamasun (Aksaray) Gabbroids

Abstract

Keywords

Mamasun (Aksaray) Gabroyidlerinin Petrojenetik Karakteristiği

Öz

Anahtar Kelimeler

References

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Subjects

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Authors

Publication Date

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Acceptance Date

Published in Issue

DOI

IZ

Cite