Journals / Türkiye Jeoloji Bülteni / 2015 / Cilt: 58 - Sayı: 2

Stratigraphic evolution of the Kemalpaşa (İzmir) plio-quaternary basin

Kemalpaşa (İzmir) pliyo-kuvaterner havzasının stratigrafk evrimi

Pages
1–28
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

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

Alluvial fan and fuvial depositsof the second phase have been deposited in the Holosen basin opening on the frst phase deposits by theKemalpaşa high-angled oblique-slip normal fault.

📌 3 Key Takeaways

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Objective & Hypothesis:The Kemalpaşa Plio-Quaternary basin was constructed during the period of N-S extension which has beenreactivated nearly 5 Ma BP causing the opening of E-W trending grabens following a short-time compressionphase in Western Anatolia.
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Key Findings & Data:The Kemalpaşa basin, southwestern one of the westerly furcated branches ofGediz Graben, has a Neogene basement composed of Lower-Middle Miocene and Upper Miocene-lowermostPliocene continental sedimentary sequences seperated by a regional unconformity.
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Conclusion & Impact:Alluvial fan and fuvial depositsof the second phase have been deposited in the Holosen basin opening on the frst phase deposits by theKemalpaşa high-angled oblique-slip normal fault.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The Kemalpaşa Plio-Quaternary basin was constructed during the period of N-S extension which has beenreactivated nearly 5 Ma BP causing the opening of E-W trending grabens following a short-time compressionphase in Western Anatolia. The Kemalpaşa basin, southwestern one of the westerly furcated branches ofGediz Graben, has a Neogene basement composed of Lower-Middle Miocene and Upper Miocene-lowermostPliocene continental sedimentary sequences seperated by a regional unconformity. The Lower-MiddleMiocene Kemalpaşa group is represented by the Dereköy, Örnekköy and Topçutepe formations depositedin fandelta, lacustrine and fuvial environments respectively and the calcalkaline andesitic Yukarıkızılcavolcanics. The Çiçekliköy group, which is deposited during the Late Miocene to early Early Pliocene, The deposition in the Kemalpaşa basin, which is formed in two successive phases during the late EarlyPliocene and Holocene respectively, is represented by the Gediz group. The frst phase depositsof lateEarly Pliocene-Plesitocene on the hanging wall of Gediz Graben detachment fault arethe lacustrineÇiniliköy formation and lateral alluvial Kızılca and Armutlu formations. Alluvial fan and fuvial depositsof the second phase have been deposited in the Holosen basin opening on the frst phase deposits by theKemalpaşa high-angled oblique-slip normal fault.

Özet

Batı Anadoluda, kısa süreli bir sıkışma fazını izleyerek yaklaşık 5 my önce yeniden etkinleşen ve D-Buzanımlı grabenlerin açılımını sağlayan K-G genişleme sürecinde Kemalpaşa Pliyo-Kuvaterner havzasıoluşmuştur. Gediz Grabeninin batıya çatallanan kolunu oluşturan havzanın Neojen temelini, bölgeselölçekte açılı uyumsuzlukla birbirinden ayrılan Alt-Orta Miyosen ve Üst Miyosen-en Alt Pliyosen karasaltortul istiferi oluşturur. Alt-Orta Miyosen dolgularını kapsayan Kemalpaşa grubu , yelpaze deltasıortamında çökelmiş Dereköy, gölsel Örnekköy, füviyal Topçutepe formasyonları ve kalkalkali andezitikYukarıkızılca volkaniti ile simgelenir. Geç Miyosen-erken Erken Pliyosen tortullaşmasını yansıtanÇiçekliköy grubu ise, altta alüviyal Ulucak formasyonu ile üstte yer alan gölsel Yaka kireçtaşından oluşur.Kemalpaşa havzasının birbirini izleyen iki evreli dolgulanma süreci, geç Erken Pliyosen-Pleyistosen veHolosen istiferine ayrılan Gediz grubu ile temsil edilir. Gediz Grabeni ana sıyrılma fayının tavan bloğuüzerinde geç Erken Pliyosen-Pleyistosen döneminde çökelen birinci evre istif, egemen gölsel Çiniliköyalüviyal Kızılca ve Armutlu formasyonlarından oluşur. Yüksek açılı Kemalpaşa verev-normal fayıtarafından birinci evre dolguları üzerinde bakışımsız açılan Holosen havzasında, ikinci evreyi simgeleyenalüvyon yelpazesi ve akarsu çökelleri dolgulanmaktadır.

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Cite This Article

HAKYEMEZ, H. Y., GÖKTAŞ, F. (2022). Stratigraphic evolution of the Kemalpaşa (İzmir) plio-quaternary basin. Türkiye Jeoloji Bülteni, Cilt: 58 - Sayı: 2, 1–28. https://ajindex.com/articles/629680

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