Journals / Geosound / 2001 / Cilt: 0 - Sayı: 38

Geochemical characteristics of the diabases dykes between Tefenni-Yeşilova (Burdur)

Tefenni-Yeşilova (Burdur) arasındaki diyabaz dayklarının jeokimyasal özellikleri

Journal
Geosound
Pages
81–92
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

By some geochemical discriminating diagrams, it was found out that the diabases are basalt, minor tephrite basanit, and basaltic andesite in compositon with subalkaline and tholeiitic affinity that formed in geotectonic seting of island arc.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Tectonite and cumulates, situated at the bottom of the Yeşilova ophiolites, cut by amphibolitised seperate gabbro and diabases dykes with various thickness showing chilled zone in various directions.
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Key Findings & Data:Mineralogical composition of the diabases, diabasic texture is dominant, is made up of zoned plagioclase, uralitisated pyroxene with inclusion, yellow-green amphibole, sphene, chlorite, ilmenite, rombic magnesiochromite and magnetite/haematite.
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Conclusion & Impact:By some geochemical discriminating diagrams, it was found out that the diabases are basalt, minor tephrite basanit, and basaltic andesite in compositon with subalkaline and tholeiitic affinity that formed in geotectonic seting of island arc.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Tectonite and cumulates, situated at the bottom of the Yeşilova ophiolites, cut by amphibolitised seperate gabbro and diabases dykes with various thickness showing chilled zone in various directions. Mineralogical composition of the diabases, diabasic texture is dominant, is made up of zoned plagioclase, uralitisated pyroxene with inclusion, yellow-green amphibole, sphene, chlorite, ilmenite, rombic magnesiochromite and magnetite/haematite. Mafic rocks display wide range chemical composition. By some geochemical discriminating diagrams, it was found out that the diabases are basalt, minor tephrite basanit, and basaltic andesite in compositon with subalkaline and tholeiitic affinity that formed in geotectonic seting of island arc. Compatibility of the samples in the Harker and REE diagrams, existence of negative Eu anomaly in the REE pattern, and diagram of compatible-incompatible elements show that the diabases are of co-genetic, and fractional crystallisation (eg. olivine, pyroxene plagioclase, chromite) process could play an important role in their petrological history.

Özet

Yeşilova ofiyolitinin tabanında yer alan tektonit ve kümülatlar çok yönlü soğuma zonu ve amfibolitleşme gösteren çeşitli kalınlıklardaki izole gabro ve diyabaz daykları tarafından kesilmektedir. Diyabazik dokunun hakim olduğu diyabazlarda mineralojik bileşim başlıca plajiyoklaz, piroksen, amfibol, sfen, klorit, ilmenit, magnezyokromit, ve magnetit/hematitten oluşmaktadır. Mafik özellikteki bu kayaçlar genel olarak oldukça geniş bir kimyasal bileşim sergilerler. Çeşitli jeokimyasal ayırtman diyagramlar yardımıyla diyabazların ada yayı jeotektonik konumuna sahip subalkalin ve toleyitik özellik gösteren bazalt, kısmen tefrit bazanit ve bazaltik andezit bileşimli olduğu ortaya konmuştur. Örneklerin Harker ve REE diyagramında birbirleri ile olan uyumluluğu, REE grafiğinde negatif Eu anomalinin varlığı ve uyumlu-uyumsuz element diagramı bunların aynı tip magmaya ait olduğunu ve petrolojik tarihçelerinde fraksiyonel kristalleşmenin (olivin, piroksen plajiyoklaz ve kromit) önemli bir rol oynamış olabileceğini göstermektedir.

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Cite This Article

KOÇAK, K., SÖĞÜT, A. R., ÖZKAN, A. M., DÖYEN, A., ZEDEF, V., IŞIK, F. (2022). Geochemical characteristics of the diabases dykes between Tefenni-Yeşilova (Burdur). Geosound, Cilt: 0 - Sayı: 38, 81–92. https://ajindex.com/articles/524981

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